From 2540529717736bfa5edd911045d21d2f592f7448 Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Fri, 3 Jul 2026 12:12:45 +0300
Subject: [PATCH 01/66] CI: Usage of separated machine for RemoteOperations
 tests

---
 .github/workflows/ci.yml     | 58 +++++++++++++++++++++---------------
 Dockerfile--alpine.tmpl      | 47 ++++++++++++++++++-----------
 tests/helpers/global_data.py |  8 +++--
 3 files changed, 68 insertions(+), 45 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 1f6e4cf..067faf2 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -72,30 +72,8 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - platform: "alpine"
-            python: "3.7"
-          - platform: "alpine"
-            python: "3.8"
-          - platform: "alpine"
-            python: "3.9"
-          - platform: "alpine"
-            python: "3.10"
-          - platform: "alpine"
-            python: "3.11"
           - platform: "alpine"
             python: "3.12"
-          - platform: "alpine"
-            python: "3.13"
-          - platform: "alpine"
-            python: "3.14"
-          - platform: "ubuntu_24_04"
-            python: "3"
-          - platform: "altlinux_10"
-            python: "3"
-          - platform: "altlinux_11"
-            python: "3"
-          - platform: "astralinux_1_7"
-            python: "3"
 
     env:
       BASE_SIGN: "${{ matrix.platform }}-py${{ matrix.python }}"
@@ -116,8 +94,40 @@ jobs:
       run: chmod -R 777 "${{ env.RUN_CFG__LOGS_DIR }}"
     - name: Build local image ${{ matrix.alpine }}
       run: docker build --build-arg PYTHON_VERSION="${{ matrix.python }}" -t "${{ env.RUN_CFG__DOCKER_IMAGE_NAME }}" -f Dockerfile--${{ matrix.platform }}.tmpl .
-    - name: Run
-      run: docker run -t -v ${{ github.workspace }}/${{ env.RUN_CFG__LOGS_DIR }}:/home/test/testgres/logs "${{ env.RUN_CFG__DOCKER_IMAGE_NAME }}"
+
+    - name: Generate temporary SSH Key pair for CI
+      run: |
+        # Generate a key without a password directly on the GitHub Actions host
+        ssh-keygen -t ed25519 -N "" -f ${{ github.workspace }}/id_ed25519
+        # Create a folder structure for forwarding the key to the test user
+        mkdir -p ${{ github.workspace }}/remote2_ssh
+        cat ${{ github.workspace }}/id_ed25519.pub > ${{ github.workspace }}/remote2_ssh/authorized_keys
+        chmod 600 ${{ github.workspace }}/remote2_ssh/authorized_keys
+
+    - name: Run second target host (remote2)
+      run: |
+        # Launch a second container in the background (-d) named "remote2"
+        # Add the generated key to its authorized_keys for the user "test"
+        # Redefine CMD to "sleep infinity" so it runs as a bare server
+        docker run -d --name remote2 \
+          -v ${{ github.workspace }}/remote2_ssh/authorized_keys:/home/test/.ssh/authorized_keys:ro \
+          "${{ env.RUN_CFG__DOCKER_IMAGE_NAME }}" \
+          sleep infinity
+
+    - name: Run Main Test Container
+      run: |
+        # Launch the main container, passing the private key to the .ssh folder of the test user.
+        # Pass environment variables so Python tests know where to start.
+        # Link the containers using --link so the name "remote2" resolves to an IP address.
+        docker run -t \
+          --link remote2:remote2 \
+          -v ${{ github.workspace }}/${{ env.RUN_CFG__LOGS_DIR }}:/home/test/testgres/logs \
+          -v ${{ github.workspace }}/id_ed25519:/home/test/.ssh/id_ed25519:ro \
+          -e TEST_PARAM_REMOTE2_HOST="remote2" \
+          -e TEST_PARAM_REMOTE2_USERNAME="test" \
+          -e TEST_PARAM_REMOTE2_SSH_KEY="/home/test/.ssh/id_ed25519" \
+          "${{ env.RUN_CFG__DOCKER_IMAGE_NAME }}"
+
     - name: Upload Logs
       uses: actions/upload-artifact@v7
       if: always() # IT IS IMPORTANT!
diff --git a/Dockerfile--alpine.tmpl b/Dockerfile--alpine.tmpl
index f78af01..c0ace77 100644
--- a/Dockerfile--alpine.tmpl
+++ b/Dockerfile--alpine.tmpl
@@ -14,6 +14,7 @@ RUN apk add git
 # --------------------------------------------- final
 FROM base2 AS final
 
+RUN apk update
 RUN apk add mc
 RUN apk add bash
 
@@ -21,6 +22,7 @@ RUN apk add bash
 RUN apk add --no-cache procps
 
 RUN apk add --no-cache openssh
+RUN apk add --no-cache sshpass
 RUN apk add --no-cache sudo
 
 RUN adduser -D test
@@ -40,24 +42,33 @@ RUN echo "test ALL=(ALL:ALL) NOPASSWD:ALL" >> /etc/sudoers
 # THIS CMD IS NEEDED TO CONNECT THROUGH SSH WITHOUT PASSWORD
 RUN sh -c "echo "test:*" | chpasswd -e"
 
-USER test
+RUN chmod 700 /home/test/
+RUN mkdir -p /home/test/.ssh
+RUN chown -R test:test /home/test/.ssh
 
-# THIS CMD IS NEEDED TO CONNECT THROUGH SSH WITHOUT PASSWORD
-RUN chmod 700 ~/
-
-RUN mkdir -p ~/.ssh
-#RUN chmod 700 ~/.ssh
+ENTRYPOINT ["sh", "-c", " \
+    set -eux; \
+    echo 'SYSTEM START: PREPARING SSH'; \
+    /usr/sbin/sshd; \
+    exec \"$@\"; \
+"]
 
-ENTRYPOINT sh -c " \
+# Run tests by default (master machine role)
+CMD ["bash", "bash", "-c", " \
 set -eux; \
-echo HELLO FROM ENTRYPOINT; \
-echo HOME DIR IS [`realpath ~/`]; \
-echo WORK DIR IS [$(pwd)]; \
-ssh-keygen -t rsa -f ~/.ssh/id_rsa -q -N ''; \
-cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys; \
-chmod 600 ~/.ssh/authorized_keys; \
-ls -la ~/.ssh/; \
-sudo /usr/sbin/sshd; \
-ssh-keyscan -H localhost >> ~/.ssh/known_hosts; \
-ssh-keyscan -H 127.0.0.1 >> ~/.ssh/known_hosts; \
-bash run_tests3.sh;"
+echo \"HOME DIR IS [`realpath ~/`]\"; \
+echo \"WORK DIR IS [$(pwd)]\"; \
+if [ ! -f /home/test/.ssh/id_rsa ]; then \
+    su test -c \"ssh-keygen -t rsa -f /home/test/.ssh/id_rsa -q -N ''\"; \
+    su test -c \"cat /home/test/.ssh/id_rsa.pub >> /home/test/.ssh/authorized_keys;\" \
+    chmod 600 /home/test/.ssh/authorized_keys; \
+fi; \
+ls -la /home/test/.ssh/; \
+su test -c \"ssh-keyscan -H localhost >> /home/test/.ssh/known_hosts\"; \
+su test -c \"ssh-keyscan -H 127.0.0.1 >> /home/test/.ssh/known_hosts\"; \
+if [ -n \"${TEST_PARAM_REMOTE2_HOST:-}\" ]; then \
+    su test -c \"ssh-keyscan -H ${TEST_PARAM_REMOTE2_HOST} >> /home/test/.ssh/known_hosts\"; \
+fi; \
+ls -la ./; \
+su test -c \"bash ./run_tests3.sh\"; \
+"]
diff --git a/tests/helpers/global_data.py b/tests/helpers/global_data.py
index f66772e..f107711 100644
--- a/tests/helpers/global_data.py
+++ b/tests/helpers/global_data.py
@@ -19,9 +19,11 @@ def __init__(self, sign: str, os_ops: OsOperations):
 
 class OsOpsDescrs:
     sm_remote_conn_params = ConnectionParams(
-        host=os.getenv('RDBMS_TESTPOOL1_HOST') or '127.0.0.1',
-        username=os.getenv('USER'),
-        ssh_key=os.getenv('RDBMS_TESTPOOL_SSHKEY'))
+        host=os.getenv('TEST_PARAM_REMOTE2_HOST') or '127.0.0.1',
+        username=os.getenv('TEST_PARAM_REMOTE2_USERNAME'),
+        ssh_key=os.getenv('TEST_PARAM_REMOTE2_SSH_KEY'),
+        password=os.getenv('TEST_PARAM_REMOTE2_PASSWORD'),
+    )
 
     sm_remote_os_ops = RemoteOperations(sm_remote_conn_params)
 

From 468b53913b4274ad1ca0096c17929ca9611065f7 Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Fri, 3 Jul 2026 12:43:29 +0300
Subject: [PATCH 02/66] CI: CMD is fixed (zero element is ignored!)

---
 .github/workflows/ci.yml | 2 +-
 Dockerfile--alpine.tmpl  | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 067faf2..ca6c850 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -112,7 +112,7 @@ jobs:
         docker run -d --name remote2 \
           -v ${{ github.workspace }}/remote2_ssh/authorized_keys:/home/test/.ssh/authorized_keys:ro \
           "${{ env.RUN_CFG__DOCKER_IMAGE_NAME }}" \
-          sleep infinity
+          - sleep infinity
 
     - name: Run Main Test Container
       run: |
diff --git a/Dockerfile--alpine.tmpl b/Dockerfile--alpine.tmpl
index c0ace77..7e1d4fc 100644
--- a/Dockerfile--alpine.tmpl
+++ b/Dockerfile--alpine.tmpl
@@ -50,11 +50,11 @@ ENTRYPOINT ["sh", "-c", " \
     set -eux; \
     echo 'SYSTEM START: PREPARING SSH'; \
     /usr/sbin/sshd; \
-    exec \"$@\"; \
+    \"$@\"; \
 "]
 
 # Run tests by default (master machine role)
-CMD ["bash", "bash", "-c", " \
+CMD ["", "bash", "-c", " \
 set -eux; \
 echo \"HOME DIR IS [`realpath ~/`]\"; \
 echo \"WORK DIR IS [$(pwd)]\"; \

From fcb3d0c438f5299906d64de44a0b97a84272ce19 Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Fri, 3 Jul 2026 13:38:23 +0300
Subject: [PATCH 03/66] CI: Copy TEST_PARAM_REMOTE2_SSH_KEY to file with right
 attributes

---
 Dockerfile--alpine.tmpl | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Dockerfile--alpine.tmpl b/Dockerfile--alpine.tmpl
index 7e1d4fc..1f88cac 100644
--- a/Dockerfile--alpine.tmpl
+++ b/Dockerfile--alpine.tmpl
@@ -69,6 +69,12 @@ su test -c \"ssh-keyscan -H 127.0.0.1 >> /home/test/.ssh/known_hosts\"; \
 if [ -n \"${TEST_PARAM_REMOTE2_HOST:-}\" ]; then \
     su test -c \"ssh-keyscan -H ${TEST_PARAM_REMOTE2_HOST} >> /home/test/.ssh/known_hosts\"; \
 fi; \
+if [ -n \"${TEST_PARAM_REMOTE2_SSH_KEY:-}\" ]; then \
+    cp \"${TEST_PARAM_REMOTE2_SSH_KEY}\" \"${TEST_PARAM_REMOTE2_SSH_KEY}_ci\"; \
+    export TEST_PARAM_REMOTE2_SSH_KEY=\"${TEST_PARAM_REMOTE2_SSH_KEY}_ci\"; \
+    chown test:test \"${TEST_PARAM_REMOTE2_SSH_KEY}\"; \
+    chmod 600 \"${TEST_PARAM_REMOTE2_SSH_KEY}\"; \
+fi; \
 ls -la ./; \
 su test -c \"bash ./run_tests3.sh\"; \
 "]

From 439dc43ecef76127b0b531aa4f42cc824d0002ab Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Fri, 3 Jul 2026 13:43:45 +0300
Subject: [PATCH 04/66] CI: More prints of '/home/test/.ssh/' content

---
 Dockerfile--alpine.tmpl | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Dockerfile--alpine.tmpl b/Dockerfile--alpine.tmpl
index 1f88cac..f29dda3 100644
--- a/Dockerfile--alpine.tmpl
+++ b/Dockerfile--alpine.tmpl
@@ -50,6 +50,7 @@ ENTRYPOINT ["sh", "-c", " \
     set -eux; \
     echo 'SYSTEM START: PREPARING SSH'; \
     /usr/sbin/sshd; \
+    ls -la /home/test/.ssh/; \
     \"$@\"; \
 "]
 
@@ -74,6 +75,7 @@ if [ -n \"${TEST_PARAM_REMOTE2_SSH_KEY:-}\" ]; then \
     export TEST_PARAM_REMOTE2_SSH_KEY=\"${TEST_PARAM_REMOTE2_SSH_KEY}_ci\"; \
     chown test:test \"${TEST_PARAM_REMOTE2_SSH_KEY}\"; \
     chmod 600 \"${TEST_PARAM_REMOTE2_SSH_KEY}\"; \
+    ls -la /home/test/.ssh/; \
 fi; \
 ls -la ./; \
 su test -c \"bash ./run_tests3.sh\"; \

From 66a2bb2bb1f720b7d663ca0b14e626e5a870b264 Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Fri, 3 Jul 2026 13:57:36 +0300
Subject: [PATCH 05/66] CI: Try to fix 'authorized_keys' on the second machine

---
 .github/workflows/ci.yml | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ca6c850..b603a6a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -110,9 +110,15 @@ jobs:
         # Add the generated key to its authorized_keys for the user "test"
         # Redefine CMD to "sleep infinity" so it runs as a bare server
         docker run -d --name remote2 \
-          -v ${{ github.workspace }}/remote2_ssh/authorized_keys:/home/test/.ssh/authorized_keys:ro \
+          -v ${{ github.workspace }}/remote2_ssh/authorized_keys:/home/test/.ssh/authorized_keys_ci:ro \
           "${{ env.RUN_CFG__DOCKER_IMAGE_NAME }}" \
-          - sleep infinity
+          - \
+          cp /tmp/authorized_keys_ci /home/test/.ssh/authorized_keys && \
+          chown test:test /home/test/.ssh/authorized_keys && \
+          chmod 600 /home/test/.ssh/authorized_keys && \
+          chmod 700 /home/test/.ssh && \
+          ls -la /home/test/.ssh/ && \
+          sleep infinity
 
     - name: Run Main Test Container
       run: |

From a522d25cd8b669b1c881375d33f0d08c64a8ee17 Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Fri, 3 Jul 2026 14:07:31 +0300
Subject: [PATCH 06/66] CI: no lint and no build-check (temporary)

---
 .github/workflows/ci.yml | 50 ----------------------------------------
 1 file changed, 50 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b603a6a..dd7183a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,56 +15,6 @@ on:
       - "*.md"
 
 jobs:
-  lint:
-    runs-on: ubuntu-latest
-    strategy:
-      fail-fast: false
-      matrix:
-        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13", "3.14"]
-
-    steps:
-    - name: Checkout
-      uses: actions/checkout@v7
-    - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v6
-      with:
-        python-version: ${{ matrix.python-version }}
-    - name: Install dependencies
-      run: |
-        python -m pip install --upgrade pip
-        python -m pip install flake8 flake8-pyproject ruff
-    - name: Lint with flake8
-      run: |
-        flake8 .
-    - name: Lint with ruff
-      run: |
-        ruff check .
-
-  build-check:
-    runs-on: ubuntu-latest
-    needs: lint
-    steps:
-    - name: Checkout
-      uses: actions/checkout@v7
-    
-    - name: Set up Python 3.12
-      uses: actions/setup-python@v6
-      with:
-        python-version: "3.12"
-        
-    - name: Install build tools
-      run: |
-        python -m pip install --upgrade pip
-        python -m pip install build twine
-
-    - name: Build package
-      run: |
-        python -m build
-
-    - name: Check package metadata
-      run: |
-        twine check dist/*
-
   test:
     runs-on: ubuntu-latest
     needs: build-check

From d8bd222cd189e5bb82ef2d3a0bee0663749174a2 Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Fri, 3 Jul 2026 14:08:06 +0300
Subject: [PATCH 07/66] CI: bad path to authorized_keys_ci

---
 .github/workflows/ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index dd7183a..06a3be1 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -63,7 +63,7 @@ jobs:
           -v ${{ github.workspace }}/remote2_ssh/authorized_keys:/home/test/.ssh/authorized_keys_ci:ro \
           "${{ env.RUN_CFG__DOCKER_IMAGE_NAME }}" \
           - \
-          cp /tmp/authorized_keys_ci /home/test/.ssh/authorized_keys && \
+          cp /home/test/.ssh/authorized_keys_ci /home/test/.ssh/authorized_keys && \
           chown test:test /home/test/.ssh/authorized_keys && \
           chmod 600 /home/test/.ssh/authorized_keys && \
           chmod 700 /home/test/.ssh && \

From 4d702aa0df32a55ee09e0a81dbfbf7c5a03a856a Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Fri, 3 Jul 2026 14:09:12 +0300
Subject: [PATCH 08/66] CI: fix "needs"

---
 .github/workflows/ci.yml | 1 -
 1 file changed, 1 deletion(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 06a3be1..7b91ed8 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,7 +17,6 @@ on:
 jobs:
   test:
     runs-on: ubuntu-latest
-    needs: build-check
     strategy:
       fail-fast: false
       matrix:

From eb5deee1e0111ab21806c67cff03e2883f76a8a9 Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Fri, 3 Jul 2026 14:15:20 +0300
Subject: [PATCH 09/66] CI: More logs for remote2 machine

---
 .github/workflows/ci.yml | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7b91ed8..73917f4 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -62,7 +62,12 @@ jobs:
           -v ${{ github.workspace }}/remote2_ssh/authorized_keys:/home/test/.ssh/authorized_keys_ci:ro \
           "${{ env.RUN_CFG__DOCKER_IMAGE_NAME }}" \
           - \
+          echo "----------------" && \
+          getent passwd && \
+          echo "----------------" && \
+          ls -la /home/test/.ssh/ && \
           cp /home/test/.ssh/authorized_keys_ci /home/test/.ssh/authorized_keys && \
+          ls -la /home/test/.ssh/ && \
           chown test:test /home/test/.ssh/authorized_keys && \
           chmod 600 /home/test/.ssh/authorized_keys && \
           chmod 700 /home/test/.ssh && \

From f04c1f2f497e9eac5c469db214f7c4e0261936d0 Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Fri, 3 Jul 2026 14:26:29 +0300
Subject: [PATCH 10/66] CI: More logs for remote2 machine (2)

---
 .github/workflows/ci.yml | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 73917f4..222adfb 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -62,9 +62,16 @@ jobs:
           -v ${{ github.workspace }}/remote2_ssh/authorized_keys:/home/test/.ssh/authorized_keys_ci:ro \
           "${{ env.RUN_CFG__DOCKER_IMAGE_NAME }}" \
           - \
-          echo "----------------" && \
+          echo "---------------- OS" && \
+          cat /etc/os-release
+          echo "---------------- USERS" && \
           getent passwd && \
-          echo "----------------" && \
+          echo "---------------- DIRS" && \
+          echo "HOME DIR IS [`realpath ~/`]" &&  \
+          echo "WORK DIR IS [$(pwd)]" && \
+          echo "---------------- WORK DIR" && \
+          ls -la ./ && \
+          echo "---------------- .SSH" && \
           ls -la /home/test/.ssh/ && \
           cp /home/test/.ssh/authorized_keys_ci /home/test/.ssh/authorized_keys && \
           ls -la /home/test/.ssh/ && \

From 4b0e2e6179aaa7e8d0090efe549ac82889d1f885 Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Fri, 3 Jul 2026 14:39:42 +0300
Subject: [PATCH 11/66] CI: A mistake in correction command is fixed

---
 .github/workflows/ci.yml | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 222adfb..2e853cd 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -61,7 +61,7 @@ jobs:
         docker run -d --name remote2 \
           -v ${{ github.workspace }}/remote2_ssh/authorized_keys:/home/test/.ssh/authorized_keys_ci:ro \
           "${{ env.RUN_CFG__DOCKER_IMAGE_NAME }}" \
-          - \
+          - bash -c '\
           echo "---------------- OS" && \
           cat /etc/os-release
           echo "---------------- USERS" && \
@@ -79,7 +79,8 @@ jobs:
           chmod 600 /home/test/.ssh/authorized_keys && \
           chmod 700 /home/test/.ssh && \
           ls -la /home/test/.ssh/ && \
-          sleep infinity
+          sleep infinity \
+          '
 
     - name: Run Main Test Container
       run: |

From 100d451d48642c3d0c7f75be3b85b5ece297830a Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Fri, 3 Jul 2026 14:42:39 +0300
Subject: [PATCH 12/66] CI: A mistake in correction command is fixed (2)

---
 .github/workflows/ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 2e853cd..a4e85cb 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -63,7 +63,7 @@ jobs:
           "${{ env.RUN_CFG__DOCKER_IMAGE_NAME }}" \
           - bash -c '\
           echo "---------------- OS" && \
-          cat /etc/os-release
+          cat /etc/os-release " && \
           echo "---------------- USERS" && \
           getent passwd && \
           echo "---------------- DIRS" && \

From 90229feec576702cb4428c44c1d5e95289d72eb6 Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Fri, 3 Jul 2026 14:51:10 +0300
Subject: [PATCH 13/66] CI: A mistake in correction command is fixed (3)

---
 .github/workflows/ci.yml | 40 ++++++++++++++++++++--------------------
 1 file changed, 20 insertions(+), 20 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a4e85cb..87c1188 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -61,26 +61,26 @@ jobs:
         docker run -d --name remote2 \
           -v ${{ github.workspace }}/remote2_ssh/authorized_keys:/home/test/.ssh/authorized_keys_ci:ro \
           "${{ env.RUN_CFG__DOCKER_IMAGE_NAME }}" \
-          - bash -c '\
-          echo "---------------- OS" && \
-          cat /etc/os-release " && \
-          echo "---------------- USERS" && \
-          getent passwd && \
-          echo "---------------- DIRS" && \
-          echo "HOME DIR IS [`realpath ~/`]" &&  \
-          echo "WORK DIR IS [$(pwd)]" && \
-          echo "---------------- WORK DIR" && \
-          ls -la ./ && \
-          echo "---------------- .SSH" && \
-          ls -la /home/test/.ssh/ && \
-          cp /home/test/.ssh/authorized_keys_ci /home/test/.ssh/authorized_keys && \
-          ls -la /home/test/.ssh/ && \
-          chown test:test /home/test/.ssh/authorized_keys && \
-          chmod 600 /home/test/.ssh/authorized_keys && \
-          chmod 700 /home/test/.ssh && \
-          ls -la /home/test/.ssh/ && \
-          sleep infinity \
-          '
+          - bash -c "\
+            echo \"---------------- OS\" && \
+            cat /etc/os-release
+            echo \"---------------- USERS\" && \
+            getent passwd && \
+            echo \"---------------- DIRS\" && \
+            echo \"HOME DIR IS [`realpath ~/`]\" &&  \
+            echo \"WORK DIR IS [$(pwd)]\" && \
+            echo \"---------------- WORK DIR\" && \
+            ls -la ./ && \
+            echo \"---------------- .SSH\" && \
+            ls -la /home/test/.ssh/ && \
+            cp /home/test/.ssh/authorized_keys_ci /home/test/.ssh/authorized_keys && \
+            ls -la /home/test/.ssh/ && \
+            chown test:test /home/test/.ssh/authorized_keys && \
+            chmod 600 /home/test/.ssh/authorized_keys && \
+            chmod 700 /home/test/.ssh && \
+            ls -la /home/test/.ssh/ && \
+            sleep infinity \
+            "
 
     - name: Run Main Test Container
       run: |

From fc20863e7dda09ac53b2125c881016e4508082c3 Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Fri, 3 Jul 2026 14:57:11 +0300
Subject: [PATCH 14/66] CI: Run the second machine with "-t" option

---
 .github/workflows/ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 87c1188..8af720c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -58,7 +58,7 @@ jobs:
         # Launch a second container in the background (-d) named "remote2"
         # Add the generated key to its authorized_keys for the user "test"
         # Redefine CMD to "sleep infinity" so it runs as a bare server
-        docker run -d --name remote2 \
+        docker run -d -t --name remote2 \
           -v ${{ github.workspace }}/remote2_ssh/authorized_keys:/home/test/.ssh/authorized_keys_ci:ro \
           "${{ env.RUN_CFG__DOCKER_IMAGE_NAME }}" \
           - bash -c "\

From bf8134dda6d2f2e5676c9bc6c56230e511b197d8 Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Fri, 3 Jul 2026 15:24:02 +0300
Subject: [PATCH 15/66] CI: Two stage for second machine: run_with_detach +
 ssh_file_correction

---
 .github/workflows/ci.yml | 38 +++++++++++++++-----------------------
 1 file changed, 15 insertions(+), 23 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 8af720c..8f0def6 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -55,32 +55,24 @@ jobs:
 
     - name: Run second target host (remote2)
       run: |
-        # Launch a second container in the background (-d) named "remote2"
-        # Add the generated key to its authorized_keys for the user "test"
-        # Redefine CMD to "sleep infinity" so it runs as a bare server
         docker run -d -t --name remote2 \
           -v ${{ github.workspace }}/remote2_ssh/authorized_keys:/home/test/.ssh/authorized_keys_ci:ro \
           "${{ env.RUN_CFG__DOCKER_IMAGE_NAME }}" \
-          - bash -c "\
-            echo \"---------------- OS\" && \
-            cat /etc/os-release
-            echo \"---------------- USERS\" && \
-            getent passwd && \
-            echo \"---------------- DIRS\" && \
-            echo \"HOME DIR IS [`realpath ~/`]\" &&  \
-            echo \"WORK DIR IS [$(pwd)]\" && \
-            echo \"---------------- WORK DIR\" && \
-            ls -la ./ && \
-            echo \"---------------- .SSH\" && \
-            ls -la /home/test/.ssh/ && \
-            cp /home/test/.ssh/authorized_keys_ci /home/test/.ssh/authorized_keys && \
-            ls -la /home/test/.ssh/ && \
-            chown test:test /home/test/.ssh/authorized_keys && \
-            chmod 600 /home/test/.ssh/authorized_keys && \
-            chmod 700 /home/test/.ssh && \
-            ls -la /home/test/.ssh/ && \
-            sleep infinity \
-            "
+          - sleep infinity
+
+        sleep 1.0
+
+        docker exec -u root remote2 sh -c "
+          echo '--- INSIDE CONTAINER OS ---' && \
+          cat /etc/os-release && \
+          echo '---' && \
+          cp /home/test/.ssh/authorized_keys_ci /home/test/.ssh/authorized_keys && \
+          chown test.test /home/test/.ssh/authorized_keys && \
+          chmod 600 /home/test/.ssh/authorized_keys && \
+          chmod 700 /home/test/.ssh && \
+          echo '--- INSIDE CONTAINER .SSH ---' && \
+          ls -la /home/test/.ssh/
+        "
 
     - name: Run Main Test Container
       run: |

From 3e97ddcba890ec7da31c24700489fce4afcfb67a Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Fri, 3 Jul 2026 15:59:49 +0300
Subject: [PATCH 16/66] CI: Normalization

- RUN_CFG__REMOTE2_NAME
- RUN_CFG__SSH_KEY_NAME
---
 .github/workflows/ci.yml | 20 +++++++++-----------
 1 file changed, 9 insertions(+), 11 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 8f0def6..bd3fb22 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -33,6 +33,8 @@ jobs:
         echo "RUN_CFG__NOW=$(date +'%Y%m%d_%H%M%S')" >> $GITHUB_ENV
         echo "RUN_CFG__LOGS_DIR=logs-${{ env.BASE_SIGN }}" >> $GITHUB_ENV
         echo "RUN_CFG__DOCKER_IMAGE_NAME=tests-${{ env.BASE_SIGN }}" >> $GITHUB_ENV
+        echo "RUN_CFG__REMOTE2_NAME=remote2-${{ env.BASE_SIGN }}" >> $GITHUB_ENV
+        echo "RUN_CFG__SSH_KEY_NAME=id_ed25519-${{ env.BASE_SIGN }}" >> $GITHUB_ENV
         echo "---------- [$GITHUB_ENV]"
         cat $GITHUB_ENV
     - name: Checkout
@@ -47,22 +49,18 @@ jobs:
     - name: Generate temporary SSH Key pair for CI
       run: |
         # Generate a key without a password directly on the GitHub Actions host
-        ssh-keygen -t ed25519 -N "" -f ${{ github.workspace }}/id_ed25519
-        # Create a folder structure for forwarding the key to the test user
-        mkdir -p ${{ github.workspace }}/remote2_ssh
-        cat ${{ github.workspace }}/id_ed25519.pub > ${{ github.workspace }}/remote2_ssh/authorized_keys
-        chmod 600 ${{ github.workspace }}/remote2_ssh/authorized_keys
+        ssh-keygen -t ed25519 -N "" -f ${{ github.workspace }}/${{ env.RUN_CFG__SSH_KEY_NAME }}
 
     - name: Run second target host (remote2)
       run: |
-        docker run -d -t --name remote2 \
-          -v ${{ github.workspace }}/remote2_ssh/authorized_keys:/home/test/.ssh/authorized_keys_ci:ro \
+        docker run -d -t --name ${{ env.RUN_CFG__REMOTE2_NAME }} \
+          -v ${{ github.workspace }}/${{ env.RUN_CFG__SSH_KEY_NAME }}.pub:/home/test/.ssh/authorized_keys_ci:ro \
           "${{ env.RUN_CFG__DOCKER_IMAGE_NAME }}" \
           - sleep infinity
 
         sleep 1.0
 
-        docker exec -u root remote2 sh -c "
+        docker exec -u root ${{ env.RUN_CFG__REMOTE2_NAME }} sh -c "
           echo '--- INSIDE CONTAINER OS ---' && \
           cat /etc/os-release && \
           echo '---' && \
@@ -80,10 +78,10 @@ jobs:
         # Pass environment variables so Python tests know where to start.
         # Link the containers using --link so the name "remote2" resolves to an IP address.
         docker run -t \
-          --link remote2:remote2 \
+          --link ${{ env.RUN_CFG__REMOTE2_NAME }}:${{ env.RUN_CFG__REMOTE2_NAME }} \
           -v ${{ github.workspace }}/${{ env.RUN_CFG__LOGS_DIR }}:/home/test/testgres/logs \
-          -v ${{ github.workspace }}/id_ed25519:/home/test/.ssh/id_ed25519:ro \
-          -e TEST_PARAM_REMOTE2_HOST="remote2" \
+          -v ${{ github.workspace }}/${{ env.RUN_CFG__SSH_KEY_NAME }}:/home/test/.ssh/id_ed25519:ro \
+          -e TEST_PARAM_REMOTE2_HOST="${{ env.RUN_CFG__REMOTE2_NAME }}" \
           -e TEST_PARAM_REMOTE2_USERNAME="test" \
           -e TEST_PARAM_REMOTE2_SSH_KEY="/home/test/.ssh/id_ed25519" \
           "${{ env.RUN_CFG__DOCKER_IMAGE_NAME }}"

From 113c768f8be1ed25222f0188cb2c30a9fea3fa19 Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Fri, 3 Jul 2026 16:08:25 +0300
Subject: [PATCH 17/66] CI: All the alpines are restored

---
 .github/workflows/ci.yml | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index bd3fb22..6a23042 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -21,8 +21,22 @@ jobs:
       fail-fast: false
       matrix:
         include:
+          - platform: "alpine"
+            python: "3.7"
+          - platform: "alpine"
+            python: "3.8"
+          - platform: "alpine"
+            python: "3.9"
+          - platform: "alpine"
+            python: "3.10"
+          - platform: "alpine"
+            python: "3.11"
           - platform: "alpine"
             python: "3.12"
+          - platform: "alpine"
+            python: "3.13"
+          - platform: "alpine"
+            python: "3.14"
 
     env:
       BASE_SIGN: "${{ matrix.platform }}-py${{ matrix.python }}"

From b0f3fcb90f52488531a1d48e8bac483daceca4a0 Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Fri, 3 Jul 2026 16:49:08 +0300
Subject: [PATCH 18/66] CI: ubuntu 24.04 is restored

---
 .github/workflows/ci.yml      |  2 ++
 Dockerfile--ubuntu_24_04.tmpl | 59 ++++++++++++++++++++++++-----------
 2 files changed, 42 insertions(+), 19 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6a23042..df5c98d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -37,6 +37,8 @@ jobs:
             python: "3.13"
           - platform: "alpine"
             python: "3.14"
+          - platform: "ubuntu_24_04"
+            python: "3"
 
     env:
       BASE_SIGN: "${{ matrix.platform }}-py${{ matrix.python }}"
diff --git a/Dockerfile--ubuntu_24_04.tmpl b/Dockerfile--ubuntu_24_04.tmpl
index d953a52..507126a 100644
--- a/Dockerfile--ubuntu_24_04.tmpl
+++ b/Dockerfile--ubuntu_24_04.tmpl
@@ -7,6 +7,7 @@ RUN apt update
 RUN apt install -y sudo curl ca-certificates
 RUN apt update
 RUN apt install -y openssh-server
+RUN apt install -y sshpass
 RUN apt install -y time
 RUN apt install -y netcat-traditional
 
@@ -23,7 +24,6 @@ ENV PYTHON_VERSION=3
 FROM base2_with_python-${PYTHON_VERSION} AS final
 
 EXPOSE 22
-
 RUN ssh-keygen -A
 
 RUN useradd -m test
@@ -36,21 +36,42 @@ WORKDIR /home/test/testgres
 
 ENV LANG=C.UTF-8
 
-USER test
-
-RUN chmod 700 ~/
-RUN mkdir -p ~/.ssh
-
-ENTRYPOINT sh -c " \
-#set -eux; \
-echo HELLO FROM ENTRYPOINT; \
-echo HOME DIR IS [`realpath ~/`]; \
-service ssh enable; \
-sudo service ssh start; \
-ssh-keyscan -H localhost >> ~/.ssh/known_hosts; \
-ssh-keyscan -H 127.0.0.1 >> ~/.ssh/known_hosts; \
-ssh-keygen -t rsa -f ~/.ssh/id_rsa -q -N ''; \
-cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys; \
-chmod 600 ~/.ssh/authorized_keys; \
-ls -la ~/.ssh/; \
-TEST_FILTER=\"\" bash ./run_tests3.sh;"
+RUN chmod 700 /home/test/
+RUN mkdir -p /home/test/.ssh
+RUN chown -R test:test /home/test/.ssh
+
+ENTRYPOINT ["sh", "-c", " \
+    set -eux; \
+    echo 'SYSTEM START: PREPARING SSH'; \
+    # service ssh enable; \
+    service ssh start; \
+    ls -la /home/test/.ssh/; \
+    \"$@\"; \
+"]
+
+# Run tests by default (master machine role)
+CMD ["", "bash", "-c", " \
+set -eux; \
+echo \"HOME DIR IS [`realpath ~/`]\"; \
+echo \"WORK DIR IS [$(pwd)]\"; \
+if [ ! -f /home/test/.ssh/id_rsa ]; then \
+    su test -c \"ssh-keygen -t rsa -f /home/test/.ssh/id_rsa -q -N ''\"; \
+    su test -c \"cat /home/test/.ssh/id_rsa.pub >> /home/test/.ssh/authorized_keys;\" \
+    chmod 600 /home/test/.ssh/authorized_keys; \
+fi; \
+ls -la /home/test/.ssh/; \
+su test -c \"ssh-keyscan -H localhost >> /home/test/.ssh/known_hosts\"; \
+su test -c \"ssh-keyscan -H 127.0.0.1 >> /home/test/.ssh/known_hosts\"; \
+if [ -n \"${TEST_PARAM_REMOTE2_HOST:-}\" ]; then \
+    su test -c \"ssh-keyscan -H ${TEST_PARAM_REMOTE2_HOST} >> /home/test/.ssh/known_hosts\"; \
+fi; \
+if [ -n \"${TEST_PARAM_REMOTE2_SSH_KEY:-}\" ]; then \
+    cp \"${TEST_PARAM_REMOTE2_SSH_KEY}\" \"${TEST_PARAM_REMOTE2_SSH_KEY}_ci\"; \
+    export TEST_PARAM_REMOTE2_SSH_KEY=\"${TEST_PARAM_REMOTE2_SSH_KEY}_ci\"; \
+    chown test:test \"${TEST_PARAM_REMOTE2_SSH_KEY}\"; \
+    chmod 600 \"${TEST_PARAM_REMOTE2_SSH_KEY}\"; \
+    ls -la /home/test/.ssh/; \
+fi; \
+ls -la ./; \
+su test -c \"bash ./run_tests3.sh\"; \
+"]

From faaf8c3481429ed40149643d462e2ab7611f1624 Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Fri, 3 Jul 2026 17:18:18 +0300
Subject: [PATCH 19/66] CI: ubuntu 24.04 is updated (cleanup)

---
 Dockerfile--ubuntu_24_04.tmpl | 1 -
 1 file changed, 1 deletion(-)

diff --git a/Dockerfile--ubuntu_24_04.tmpl b/Dockerfile--ubuntu_24_04.tmpl
index 507126a..e1076c8 100644
--- a/Dockerfile--ubuntu_24_04.tmpl
+++ b/Dockerfile--ubuntu_24_04.tmpl
@@ -43,7 +43,6 @@ RUN chown -R test:test /home/test/.ssh
 ENTRYPOINT ["sh", "-c", " \
     set -eux; \
     echo 'SYSTEM START: PREPARING SSH'; \
-    # service ssh enable; \
     service ssh start; \
     ls -la /home/test/.ssh/; \
     \"$@\"; \

From 2ffa576eee503121c409975b4108a1e5f54aa140 Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Fri, 3 Jul 2026 17:19:12 +0300
Subject: [PATCH 20/66] CI: astralinux 1.7 is restored

---
 .github/workflows/ci.yml        |  2 ++
 Dockerfile--astralinux_1_7.tmpl | 53 ++++++++++++++++++++++-----------
 2 files changed, 38 insertions(+), 17 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index df5c98d..f765a5b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -39,6 +39,8 @@ jobs:
             python: "3.14"
           - platform: "ubuntu_24_04"
             python: "3"
+          - platform: "astralinux_1_7"
+            python: "3"
 
     env:
       BASE_SIGN: "${{ matrix.platform }}-py${{ matrix.python }}"
diff --git a/Dockerfile--astralinux_1_7.tmpl b/Dockerfile--astralinux_1_7.tmpl
index b68b2fa..a2118ab 100644
--- a/Dockerfile--astralinux_1_7.tmpl
+++ b/Dockerfile--astralinux_1_7.tmpl
@@ -7,6 +7,7 @@ RUN apt update
 RUN apt install -y sudo curl ca-certificates
 RUN apt update
 RUN apt install -y openssh-server
+RUN apt install -y sshpass
 # RUN apt install -y time
 # RUN apt install -y netcat-traditional
 
@@ -24,7 +25,6 @@ ENV PYTHON_VERSION=3
 FROM base2_with_python-${PYTHON_VERSION} AS final
 
 EXPOSE 22
-
 RUN ssh-keygen -A
 
 RUN useradd -m test
@@ -44,22 +44,41 @@ WORKDIR /home/test/testgres
 
 ENV LANG=C.UTF-8
 
-USER test
+RUN chmod 700 /home/test/
+RUN mkdir -p /home/test/.ssh
+RUN chown -R test:test /home/test/.ssh
 
-RUN chmod 700 ~/
-RUN mkdir -p ~/.ssh
-RUN chmod 700 ~/.ssh
+ENTRYPOINT ["sh", "-c", " \
+    set -eux; \
+    echo 'SYSTEM START: PREPARING SSH'; \
+    service ssh start; \
+    ls -la /home/test/.ssh/; \
+    \"$@\"; \
+"]
 
-ENTRYPOINT sh -c " \
+# Run tests by default (master machine role)
+CMD ["", "bash", "-c", " \
 set -eux; \
-echo HELLO FROM ENTRYPOINT; \
-echo HOME DIR IS [`realpath ~/`]; \
-# sudo service ssh enable; \
-sudo service ssh start; \
-ssh-keyscan -H localhost >> ~/.ssh/known_hosts; \
-ssh-keyscan -H 127.0.0.1 >> ~/.ssh/known_hosts; \
-ssh-keygen -t rsa -f ~/.ssh/id_rsa -q -N ''; \
-cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys; \
-chmod 600 ~/.ssh/authorized_keys; \
-ls -la ~/.ssh/; \
-TEST_FILTER=\"\" bash run_tests3.sh;"
+echo \"HOME DIR IS [`realpath ~/`]\"; \
+echo \"WORK DIR IS [$(pwd)]\"; \
+if [ ! -f /home/test/.ssh/id_rsa ]; then \
+    su test -c \"ssh-keygen -t rsa -f /home/test/.ssh/id_rsa -q -N ''\"; \
+    su test -c \"cat /home/test/.ssh/id_rsa.pub >> /home/test/.ssh/authorized_keys;\" \
+    chmod 600 /home/test/.ssh/authorized_keys; \
+fi; \
+ls -la /home/test/.ssh/; \
+su test -c \"ssh-keyscan -H localhost >> /home/test/.ssh/known_hosts\"; \
+su test -c \"ssh-keyscan -H 127.0.0.1 >> /home/test/.ssh/known_hosts\"; \
+if [ -n \"${TEST_PARAM_REMOTE2_HOST:-}\" ]; then \
+    su test -c \"ssh-keyscan -H ${TEST_PARAM_REMOTE2_HOST} >> /home/test/.ssh/known_hosts\"; \
+fi; \
+if [ -n \"${TEST_PARAM_REMOTE2_SSH_KEY:-}\" ]; then \
+    cp \"${TEST_PARAM_REMOTE2_SSH_KEY}\" \"${TEST_PARAM_REMOTE2_SSH_KEY}_ci\"; \
+    export TEST_PARAM_REMOTE2_SSH_KEY=\"${TEST_PARAM_REMOTE2_SSH_KEY}_ci\"; \
+    chown test:test \"${TEST_PARAM_REMOTE2_SSH_KEY}\"; \
+    chmod 600 \"${TEST_PARAM_REMOTE2_SSH_KEY}\"; \
+    ls -la /home/test/.ssh/; \
+fi; \
+ls -la ./; \
+su test -c \"bash ./run_tests3.sh\"; \
+"]

From 9801be1dce4a01b83e7fa3359a0c663d30bef440 Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Fri, 3 Jul 2026 17:20:18 +0300
Subject: [PATCH 21/66] CI: run_tests3.sh is updated (#!/bin/bash)

---
 run_tests3.sh | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/run_tests3.sh b/run_tests3.sh
index 00c7b7b..af70f5e 100755
--- a/run_tests3.sh
+++ b/run_tests3.sh
@@ -1,5 +1,4 @@
-#!/usr/bin/env bash
-
+#!/bin/bash
 set -eux
 
 # prepare python environment

From 8b6bfaf6e9cd9cd421b9a72be55930cb52184799 Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Fri, 3 Jul 2026 17:52:54 +0300
Subject: [PATCH 22/66] CI: alpine, astra_1_7 and ubuntu 24.04 is corrected

---
 Dockerfile--alpine.tmpl         | 2 +-
 Dockerfile--astralinux_1_7.tmpl | 2 +-
 Dockerfile--ubuntu_24_04.tmpl   | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/Dockerfile--alpine.tmpl b/Dockerfile--alpine.tmpl
index f29dda3..2c4d1ec 100644
--- a/Dockerfile--alpine.tmpl
+++ b/Dockerfile--alpine.tmpl
@@ -61,7 +61,7 @@ echo \"HOME DIR IS [`realpath ~/`]\"; \
 echo \"WORK DIR IS [$(pwd)]\"; \
 if [ ! -f /home/test/.ssh/id_rsa ]; then \
     su test -c \"ssh-keygen -t rsa -f /home/test/.ssh/id_rsa -q -N ''\"; \
-    su test -c \"cat /home/test/.ssh/id_rsa.pub >> /home/test/.ssh/authorized_keys;\" \
+    su test -c \"cat /home/test/.ssh/id_rsa.pub >> /home/test/.ssh/authorized_keys\"; \
     chmod 600 /home/test/.ssh/authorized_keys; \
 fi; \
 ls -la /home/test/.ssh/; \
diff --git a/Dockerfile--astralinux_1_7.tmpl b/Dockerfile--astralinux_1_7.tmpl
index a2118ab..647e9a9 100644
--- a/Dockerfile--astralinux_1_7.tmpl
+++ b/Dockerfile--astralinux_1_7.tmpl
@@ -63,7 +63,7 @@ echo \"HOME DIR IS [`realpath ~/`]\"; \
 echo \"WORK DIR IS [$(pwd)]\"; \
 if [ ! -f /home/test/.ssh/id_rsa ]; then \
     su test -c \"ssh-keygen -t rsa -f /home/test/.ssh/id_rsa -q -N ''\"; \
-    su test -c \"cat /home/test/.ssh/id_rsa.pub >> /home/test/.ssh/authorized_keys;\" \
+    su test -c \"cat /home/test/.ssh/id_rsa.pub >> /home/test/.ssh/authorized_keys\"; \
     chmod 600 /home/test/.ssh/authorized_keys; \
 fi; \
 ls -la /home/test/.ssh/; \
diff --git a/Dockerfile--ubuntu_24_04.tmpl b/Dockerfile--ubuntu_24_04.tmpl
index e1076c8..b9824eb 100644
--- a/Dockerfile--ubuntu_24_04.tmpl
+++ b/Dockerfile--ubuntu_24_04.tmpl
@@ -55,7 +55,7 @@ echo \"HOME DIR IS [`realpath ~/`]\"; \
 echo \"WORK DIR IS [$(pwd)]\"; \
 if [ ! -f /home/test/.ssh/id_rsa ]; then \
     su test -c \"ssh-keygen -t rsa -f /home/test/.ssh/id_rsa -q -N ''\"; \
-    su test -c \"cat /home/test/.ssh/id_rsa.pub >> /home/test/.ssh/authorized_keys;\" \
+    su test -c \"cat /home/test/.ssh/id_rsa.pub >> /home/test/.ssh/authorized_keys\"; \
     chmod 600 /home/test/.ssh/authorized_keys; \
 fi; \
 ls -la /home/test/.ssh/; \

From 1cc3f5c404dedd512ae394fba4660f917e3a6a32 Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Fri, 3 Jul 2026 18:40:09 +0300
Subject: [PATCH 23/66] CI: altlinux 11 is restored

---
 .github/workflows/ci.yml     |  2 ++
 Dockerfile--altlinux_11.tmpl | 54 +++++++++++++++++++++++++-----------
 2 files changed, 40 insertions(+), 16 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f765a5b..1d19475 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -41,6 +41,8 @@ jobs:
             python: "3"
           - platform: "astralinux_1_7"
             python: "3"
+          - platform: "altlinux_11"
+            python: "3"
 
     env:
       BASE_SIGN: "${{ matrix.platform }}-py${{ matrix.python }}"
diff --git a/Dockerfile--altlinux_11.tmpl b/Dockerfile--altlinux_11.tmpl
index 8f0f426..b51682a 100644
--- a/Dockerfile--altlinux_11.tmpl
+++ b/Dockerfile--altlinux_11.tmpl
@@ -7,7 +7,9 @@ RUN apt-get update
 RUN apt-get install -y sudo curl ca-certificates
 RUN apt-get update
 RUN apt-get install -y openssh-server openssh-clients
+RUN apt-get install -y sshpass
 RUN apt-get install -y time
+RUN apt-get install -y su
 
 # pgrep (for testgres.os_ops)
 RUN apt-get install -y procps
@@ -15,7 +17,6 @@ RUN apt-get install -y procps
 # RUN apt-get install -y mc
 
 EXPOSE 22
-
 RUN ssh-keygen -A
 
 # --------------------------------------------- dev_tools
@@ -44,24 +45,45 @@ WORKDIR /home/test/testgres
 
 ENV LANG=C.UTF-8
 
-USER test
-
-RUN chmod 700 ~/
-RUN mkdir -p ~/.ssh
+RUN chmod 700 /home/test/
+RUN mkdir -p /home/test/.ssh
+RUN chown -R test:test /home/test/.ssh
 
 #
 # Altlinux 10 and 11 too slowly create a new SSH connection (x6).
 #
 
-ENTRYPOINT sh -c " \
+ENTRYPOINT ["sh", "-c", " \
+    set -eux; \
+    echo 'SYSTEM START: PREPARING SSH'; \
+    /usr/sbin/sshd; \
+    ls -la /home/test/.ssh/; \
+    \"$@\"; \
+"]
+
+# Run tests by default (master machine role)
+CMD ["", "bash", "-c", " \
 set -eux; \
-echo HELLO FROM ENTRYPOINT; \
-echo HOME DIR IS [`realpath ~/`]; \
-sudo /usr/sbin/sshd; \
-ssh-keyscan -H localhost >> ~/.ssh/known_hosts; \
-ssh-keyscan -H 127.0.0.1 >> ~/.ssh/known_hosts; \
-ssh-keygen -t rsa -f ~/.ssh/id_rsa -q -N ''; \
-cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys; \
-chmod 600 ~/.ssh/authorized_keys; \
-ls -la ~/.ssh/; \
-TEST_FILTER=\"\" bash ./run_tests3.sh;"
+echo \"HOME DIR IS [`realpath ~/`]\"; \
+echo \"WORK DIR IS [$(pwd)]\"; \
+if [ ! -f /home/test/.ssh/id_rsa ]; then \
+    su -c \"ssh-keygen -t rsa -f /home/test/.ssh/id_rsa -q -N ''\" test; \
+    su -c \"cat /home/test/.ssh/id_rsa.pub >> /home/test/.ssh/authorized_keys\" test; \
+    chmod 600 /home/test/.ssh/authorized_keys; \
+fi; \
+ls -la /home/test/.ssh/; \
+su -c \"ssh-keyscan -H localhost >> /home/test/.ssh/known_hosts\" test; \
+su -c \"ssh-keyscan -H 127.0.0.1 >> /home/test/.ssh/known_hosts\" test; \
+if [ -n \"${TEST_PARAM_REMOTE2_HOST:-}\" ]; then \
+    su -c \"ssh-keyscan -H ${TEST_PARAM_REMOTE2_HOST} >> /home/test/.ssh/known_hosts\" test; \
+fi; \
+if [ -n \"${TEST_PARAM_REMOTE2_SSH_KEY:-}\" ]; then \
+    cp \"${TEST_PARAM_REMOTE2_SSH_KEY}\" \"${TEST_PARAM_REMOTE2_SSH_KEY}_ci\"; \
+    export TEST_PARAM_REMOTE2_SSH_KEY=\"${TEST_PARAM_REMOTE2_SSH_KEY}_ci\"; \
+    chown test:test \"${TEST_PARAM_REMOTE2_SSH_KEY}\"; \
+    chmod 600 \"${TEST_PARAM_REMOTE2_SSH_KEY}\"; \
+    ls -la /home/test/.ssh/; \
+fi; \
+ls -la ./; \
+su - test -c \"cd /home/test/testgres && bash ./run_tests3.sh\"; \
+"]

From e35db04873a999b369696ea95e85dafb050e7acb Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Fri, 3 Jul 2026 19:17:34 +0300
Subject: [PATCH 24/66] CI: Put id_ed25519 into
 /home/test/testgres/id_ed25519_test

It may fix a problem on AltLinux:

FAILED tests/test_os_ops_common.py::TestOsOpsCommon::test_kill__unk_pid[remote_ops-signal: 15] - assert 'ssh: Load key "/home/test/.ssh/id_ed25519": Permission denied\nb\n' == 'b\n'

  + ssh: Load key "/home/test/.ssh/id_ed25519": Permission denied
    b
---
 .github/workflows/ci.yml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 1d19475..4ad48b0 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -100,10 +100,10 @@ jobs:
         docker run -t \
           --link ${{ env.RUN_CFG__REMOTE2_NAME }}:${{ env.RUN_CFG__REMOTE2_NAME }} \
           -v ${{ github.workspace }}/${{ env.RUN_CFG__LOGS_DIR }}:/home/test/testgres/logs \
-          -v ${{ github.workspace }}/${{ env.RUN_CFG__SSH_KEY_NAME }}:/home/test/.ssh/id_ed25519:ro \
+          -v ${{ github.workspace }}/${{ env.RUN_CFG__SSH_KEY_NAME }}:/home/test/testgres/id_ed25519_test:ro \
           -e TEST_PARAM_REMOTE2_HOST="${{ env.RUN_CFG__REMOTE2_NAME }}" \
           -e TEST_PARAM_REMOTE2_USERNAME="test" \
-          -e TEST_PARAM_REMOTE2_SSH_KEY="/home/test/.ssh/id_ed25519" \
+          -e TEST_PARAM_REMOTE2_SSH_KEY="/home/test/testgres/id_ed25519_test" \
           "${{ env.RUN_CFG__DOCKER_IMAGE_NAME }}"
 
     - name: Upload Logs

From e33cf501ea7bc9c0c03d2b41bf5cab3cbaad3398 Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Fri, 3 Jul 2026 19:34:36 +0300
Subject: [PATCH 25/66] CI: altlinux 10 is restored

---
 .github/workflows/ci.yml     |  4 ++-
 Dockerfile--altlinux_10.tmpl | 54 +++++++++++++++++++++++++-----------
 2 files changed, 41 insertions(+), 17 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4ad48b0..b0c9a0d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -39,10 +39,12 @@ jobs:
             python: "3.14"
           - platform: "ubuntu_24_04"
             python: "3"
-          - platform: "astralinux_1_7"
+          - platform: "altlinux_10"
             python: "3"
           - platform: "altlinux_11"
             python: "3"
+          - platform: "astralinux_1_7"
+            python: "3"
 
     env:
       BASE_SIGN: "${{ matrix.platform }}-py${{ matrix.python }}"
diff --git a/Dockerfile--altlinux_10.tmpl b/Dockerfile--altlinux_10.tmpl
index 2359459..bfbbfaa 100644
--- a/Dockerfile--altlinux_10.tmpl
+++ b/Dockerfile--altlinux_10.tmpl
@@ -7,12 +7,13 @@ RUN apt-get update
 RUN apt-get install -y sudo curl ca-certificates
 RUN apt-get update
 RUN apt-get install -y openssh-server openssh-clients
+RUN apt-get install -y sshpass
 RUN apt-get install -y time
+RUN apt-get install -y su
 
 # RUN apt-get install -y mc
 
 EXPOSE 22
-
 RUN ssh-keygen -A
 
 # --------------------------------------------- dev_tools
@@ -41,24 +42,45 @@ WORKDIR /home/test/testgres
 
 ENV LANG=C.UTF-8
 
-USER test
-
-RUN chmod 700 ~/
-RUN mkdir -p ~/.ssh
+RUN chmod 700 /home/test/
+RUN mkdir -p /home/test/.ssh
+RUN chown -R test:test /home/test/.ssh
 
 #
 # Altlinux 10 and 11 too slowly create a new SSH connection (x6).
 #
 
-ENTRYPOINT sh -c " \
+ENTRYPOINT ["sh", "-c", " \
+    set -eux; \
+    echo 'SYSTEM START: PREPARING SSH'; \
+    /usr/sbin/sshd; \
+    ls -la /home/test/.ssh/; \
+    \"$@\"; \
+"]
+
+# Run tests by default (master machine role)
+CMD ["", "bash", "-c", " \
 set -eux; \
-echo HELLO FROM ENTRYPOINT; \
-echo HOME DIR IS [`realpath ~/`]; \
-sudo /usr/sbin/sshd; \
-ssh-keyscan -H localhost >> ~/.ssh/known_hosts; \
-ssh-keyscan -H 127.0.0.1 >> ~/.ssh/known_hosts; \
-ssh-keygen -t rsa -f ~/.ssh/id_rsa -q -N ''; \
-cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys; \
-chmod 600 ~/.ssh/authorized_keys; \
-ls -la ~/.ssh/; \
-TEST_FILTER=\"\" bash ./run_tests3.sh;"
+echo \"HOME DIR IS [`realpath ~/`]\"; \
+echo \"WORK DIR IS [$(pwd)]\"; \
+if [ ! -f /home/test/.ssh/id_rsa ]; then \
+    su -c \"ssh-keygen -t rsa -f /home/test/.ssh/id_rsa -q -N ''\" test; \
+    su -c \"cat /home/test/.ssh/id_rsa.pub >> /home/test/.ssh/authorized_keys\" test; \
+    chmod 600 /home/test/.ssh/authorized_keys; \
+fi; \
+ls -la /home/test/.ssh/; \
+su -c \"ssh-keyscan -H localhost >> /home/test/.ssh/known_hosts\" test; \
+su -c \"ssh-keyscan -H 127.0.0.1 >> /home/test/.ssh/known_hosts\" test; \
+if [ -n \"${TEST_PARAM_REMOTE2_HOST:-}\" ]; then \
+    su -c \"ssh-keyscan -H ${TEST_PARAM_REMOTE2_HOST} >> /home/test/.ssh/known_hosts\" test; \
+fi; \
+if [ -n \"${TEST_PARAM_REMOTE2_SSH_KEY:-}\" ]; then \
+    cp \"${TEST_PARAM_REMOTE2_SSH_KEY}\" \"${TEST_PARAM_REMOTE2_SSH_KEY}_ci\"; \
+    export TEST_PARAM_REMOTE2_SSH_KEY=\"${TEST_PARAM_REMOTE2_SSH_KEY}_ci\"; \
+    chown test:test \"${TEST_PARAM_REMOTE2_SSH_KEY}\"; \
+    chmod 600 \"${TEST_PARAM_REMOTE2_SSH_KEY}\"; \
+    ls -la /home/test/.ssh/; \
+fi; \
+ls -la ./; \
+su - test -c \"cd /home/test/testgres && bash ./run_tests3.sh\"; \
+"]

From 267891481829d5c923a1f51da9fb4fdc04e0ae13 Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Fri, 3 Jul 2026 19:38:57 +0300
Subject: [PATCH 26/66] CI: lint and build-check are restored

---
 .github/workflows/ci.yml | 51 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b0c9a0d..6cabf5b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,8 +15,59 @@ on:
       - "*.md"
 
 jobs:
+  lint:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13", "3.14"]
+
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v7
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v6
+      with:
+        python-version: ${{ matrix.python-version }}
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        python -m pip install flake8 flake8-pyproject ruff
+    - name: Lint with flake8
+      run: |
+        flake8 .
+    - name: Lint with ruff
+      run: |
+        ruff check .
+
+  build-check:
+    runs-on: ubuntu-latest
+    needs: lint
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v7
+    
+    - name: Set up Python 3.12
+      uses: actions/setup-python@v6
+      with:
+        python-version: "3.12"
+        
+    - name: Install build tools
+      run: |
+        python -m pip install --upgrade pip
+        python -m pip install build twine
+
+    - name: Build package
+      run: |
+        python -m build
+
+    - name: Check package metadata
+      run: |
+        twine check dist/*
+
   test:
     runs-on: ubuntu-latest
+    needs: build-check
     strategy:
       fail-fast: false
       matrix:

From 7067c24df615520d85b064598c948b69fcd4726c Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Fri, 3 Jul 2026 19:54:13 +0300
Subject: [PATCH 27/66] New test: test_prove_environment_isolation

Author: Mark G. (mark@google.com).
---
 tests/test_os_ops_common.py | 54 +++++++++++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)

diff --git a/tests/test_os_ops_common.py b/tests/test_os_ops_common.py
index 764f3a2..4085940 100644
--- a/tests/test_os_ops_common.py
+++ b/tests/test_os_ops_common.py
@@ -2725,6 +2725,60 @@ def test_readlines__BIN(
         assert lines == result_bin
         return
 
+    def test_prove_environment_isolation(
+        self,
+        os_ops_descr: OsOpsDescr
+    ):
+        #
+        # Author: Marg G. (mark@google.com)
+        #
+        # It used as is. Without any changes.
+        #
+
+        assert type(os_ops_descr) is OsOpsDescr
+        os_ops = os_ops_descr.os_ops
+        assert isinstance(os_ops, OsOperations)
+
+        logging.info("=================== COKANUM PROOF START ===================")
+        logging.info(f"Target environment type: [{os_ops_descr.sign}]")
+
+        # 1. Забираем OS-RELEASE
+        try:
+            # Используем cat, который мы уже проверили
+            os_release = os_ops.read("/etc/os-release")
+            # Вытаскиваем только PRETTY_NAME для компактности в логах
+            pretty_name = "Unknown Linux"
+            for line in os_release.splitlines():
+                if line.startswith("PRETTY_NAME="):
+                    pretty_name = line.split("=")[1].strip('"')
+                    break
+            logging.info(f"OS Platform detected : {pretty_name}")
+        except Exception as e:
+            logging.error(f"Failed to read os-release: {e}")
+
+        # 2. Забираем IP-адреса через 'ip route' или 'ip address'
+        # Чтобы не парсить гигантскую простыню ip addr, возьмем интерфейс, который смотрит наружу
+        try:
+            # awk у нас теперь работает как надо, так что забираем чистый IP
+            cmd = ["sh", "-c", "ip route get 1.1.1.1 | awk '{print $7; exit}'"]
+            ip_r = os_ops.exec_command(cmd, encoding="utf-8")
+            ip_clean = ip_r.strip() if isinstance(ip_r, str) else "unknown"
+
+            # Если ip route пустой (например, нет внешнего интернета в контейнере), берем дефолтный ip addr
+            if not ip_clean:
+                cmd = ["sh", "-c", "ip address show eth0 | grep 'inet ' | awk '{print $2}' | cut -d/ -f1"]
+                ip_r = os_ops.exec_command(cmd, encoding="utf-8")
+                ip_clean = ip_r.strip() if isinstance(ip_r, str) else "unknown"
+
+            logging.info(f"Machine IP Address   : {ip_clean}")
+        except Exception as e:
+            logging.error(f"Failed to get IP address: {e}")
+
+        logging.info("=================== COKANUM PROOF END =====================")
+
+        # Тест всегда успешный, его цель — оставить исторический след в логах гитхаба
+        assert True
+
     @staticmethod
     def helper__bug_check__unknown_os_ops_type(
         os_ops: OsOperations,

From 23ac3731d39b935a60d0dcae0abbe462bf4e974c Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Fri, 3 Jul 2026 20:08:02 +0300
Subject: [PATCH 28/66] rename: TEST_PARAM_xxx -> TEST_CFG_xxx

---
 .github/workflows/ci.yml        |  6 +++---
 Dockerfile--alpine.tmpl         | 14 +++++++-------
 Dockerfile--altlinux_10.tmpl    | 14 +++++++-------
 Dockerfile--altlinux_11.tmpl    | 14 +++++++-------
 Dockerfile--astralinux_1_7.tmpl | 14 +++++++-------
 Dockerfile--ubuntu_24_04.tmpl   | 14 +++++++-------
 tests/helpers/global_data.py    |  8 ++++----
 7 files changed, 42 insertions(+), 42 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6cabf5b..ecf69a8 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -154,9 +154,9 @@ jobs:
           --link ${{ env.RUN_CFG__REMOTE2_NAME }}:${{ env.RUN_CFG__REMOTE2_NAME }} \
           -v ${{ github.workspace }}/${{ env.RUN_CFG__LOGS_DIR }}:/home/test/testgres/logs \
           -v ${{ github.workspace }}/${{ env.RUN_CFG__SSH_KEY_NAME }}:/home/test/testgres/id_ed25519_test:ro \
-          -e TEST_PARAM_REMOTE2_HOST="${{ env.RUN_CFG__REMOTE2_NAME }}" \
-          -e TEST_PARAM_REMOTE2_USERNAME="test" \
-          -e TEST_PARAM_REMOTE2_SSH_KEY="/home/test/testgres/id_ed25519_test" \
+          -e TEST_CFG_REMOTE2_HOST="${{ env.RUN_CFG__REMOTE2_NAME }}" \
+          -e TEST_CFG_REMOTE2_USERNAME="test" \
+          -e TEST_CFG_REMOTE2_SSH_KEY="/home/test/testgres/id_ed25519_test" \
           "${{ env.RUN_CFG__DOCKER_IMAGE_NAME }}"
 
     - name: Upload Logs
diff --git a/Dockerfile--alpine.tmpl b/Dockerfile--alpine.tmpl
index 2c4d1ec..891ef61 100644
--- a/Dockerfile--alpine.tmpl
+++ b/Dockerfile--alpine.tmpl
@@ -67,14 +67,14 @@ fi; \
 ls -la /home/test/.ssh/; \
 su test -c \"ssh-keyscan -H localhost >> /home/test/.ssh/known_hosts\"; \
 su test -c \"ssh-keyscan -H 127.0.0.1 >> /home/test/.ssh/known_hosts\"; \
-if [ -n \"${TEST_PARAM_REMOTE2_HOST:-}\" ]; then \
-    su test -c \"ssh-keyscan -H ${TEST_PARAM_REMOTE2_HOST} >> /home/test/.ssh/known_hosts\"; \
+if [ -n \"${TEST_CFG_REMOTE2_HOST:-}\" ]; then \
+    su test -c \"ssh-keyscan -H ${TEST_CFG_REMOTE2_HOST} >> /home/test/.ssh/known_hosts\"; \
 fi; \
-if [ -n \"${TEST_PARAM_REMOTE2_SSH_KEY:-}\" ]; then \
-    cp \"${TEST_PARAM_REMOTE2_SSH_KEY}\" \"${TEST_PARAM_REMOTE2_SSH_KEY}_ci\"; \
-    export TEST_PARAM_REMOTE2_SSH_KEY=\"${TEST_PARAM_REMOTE2_SSH_KEY}_ci\"; \
-    chown test:test \"${TEST_PARAM_REMOTE2_SSH_KEY}\"; \
-    chmod 600 \"${TEST_PARAM_REMOTE2_SSH_KEY}\"; \
+if [ -n \"${TEST_CFG_REMOTE2_SSH_KEY:-}\" ]; then \
+    cp \"${TEST_CFG_REMOTE2_SSH_KEY}\" \"${TEST_CFG_REMOTE2_SSH_KEY}_ci\"; \
+    export TEST_CFG_REMOTE2_SSH_KEY=\"${TEST_CFG_REMOTE2_SSH_KEY}_ci\"; \
+    chown test:test \"${TEST_CFG_REMOTE2_SSH_KEY}\"; \
+    chmod 600 \"${TEST_CFG_REMOTE2_SSH_KEY}\"; \
     ls -la /home/test/.ssh/; \
 fi; \
 ls -la ./; \
diff --git a/Dockerfile--altlinux_10.tmpl b/Dockerfile--altlinux_10.tmpl
index bfbbfaa..08d89f7 100644
--- a/Dockerfile--altlinux_10.tmpl
+++ b/Dockerfile--altlinux_10.tmpl
@@ -71,14 +71,14 @@ fi; \
 ls -la /home/test/.ssh/; \
 su -c \"ssh-keyscan -H localhost >> /home/test/.ssh/known_hosts\" test; \
 su -c \"ssh-keyscan -H 127.0.0.1 >> /home/test/.ssh/known_hosts\" test; \
-if [ -n \"${TEST_PARAM_REMOTE2_HOST:-}\" ]; then \
-    su -c \"ssh-keyscan -H ${TEST_PARAM_REMOTE2_HOST} >> /home/test/.ssh/known_hosts\" test; \
+if [ -n \"${TEST_CFG_REMOTE2_HOST:-}\" ]; then \
+    su -c \"ssh-keyscan -H ${TEST_CFG_REMOTE2_HOST} >> /home/test/.ssh/known_hosts\" test; \
 fi; \
-if [ -n \"${TEST_PARAM_REMOTE2_SSH_KEY:-}\" ]; then \
-    cp \"${TEST_PARAM_REMOTE2_SSH_KEY}\" \"${TEST_PARAM_REMOTE2_SSH_KEY}_ci\"; \
-    export TEST_PARAM_REMOTE2_SSH_KEY=\"${TEST_PARAM_REMOTE2_SSH_KEY}_ci\"; \
-    chown test:test \"${TEST_PARAM_REMOTE2_SSH_KEY}\"; \
-    chmod 600 \"${TEST_PARAM_REMOTE2_SSH_KEY}\"; \
+if [ -n \"${TEST_CFG_REMOTE2_SSH_KEY:-}\" ]; then \
+    cp \"${TEST_CFG_REMOTE2_SSH_KEY}\" \"${TEST_CFG_REMOTE2_SSH_KEY}_ci\"; \
+    export TEST_CFG_REMOTE2_SSH_KEY=\"${TEST_CFG_REMOTE2_SSH_KEY}_ci\"; \
+    chown test:test \"${TEST_CFG_REMOTE2_SSH_KEY}\"; \
+    chmod 600 \"${TEST_CFG_REMOTE2_SSH_KEY}\"; \
     ls -la /home/test/.ssh/; \
 fi; \
 ls -la ./; \
diff --git a/Dockerfile--altlinux_11.tmpl b/Dockerfile--altlinux_11.tmpl
index b51682a..42cba1a 100644
--- a/Dockerfile--altlinux_11.tmpl
+++ b/Dockerfile--altlinux_11.tmpl
@@ -74,14 +74,14 @@ fi; \
 ls -la /home/test/.ssh/; \
 su -c \"ssh-keyscan -H localhost >> /home/test/.ssh/known_hosts\" test; \
 su -c \"ssh-keyscan -H 127.0.0.1 >> /home/test/.ssh/known_hosts\" test; \
-if [ -n \"${TEST_PARAM_REMOTE2_HOST:-}\" ]; then \
-    su -c \"ssh-keyscan -H ${TEST_PARAM_REMOTE2_HOST} >> /home/test/.ssh/known_hosts\" test; \
+if [ -n \"${TEST_CFG_REMOTE2_HOST:-}\" ]; then \
+    su -c \"ssh-keyscan -H ${TEST_CFG_REMOTE2_HOST} >> /home/test/.ssh/known_hosts\" test; \
 fi; \
-if [ -n \"${TEST_PARAM_REMOTE2_SSH_KEY:-}\" ]; then \
-    cp \"${TEST_PARAM_REMOTE2_SSH_KEY}\" \"${TEST_PARAM_REMOTE2_SSH_KEY}_ci\"; \
-    export TEST_PARAM_REMOTE2_SSH_KEY=\"${TEST_PARAM_REMOTE2_SSH_KEY}_ci\"; \
-    chown test:test \"${TEST_PARAM_REMOTE2_SSH_KEY}\"; \
-    chmod 600 \"${TEST_PARAM_REMOTE2_SSH_KEY}\"; \
+if [ -n \"${TEST_CFG_REMOTE2_SSH_KEY:-}\" ]; then \
+    cp \"${TEST_CFG_REMOTE2_SSH_KEY}\" \"${TEST_CFG_REMOTE2_SSH_KEY}_ci\"; \
+    export TEST_CFG_REMOTE2_SSH_KEY=\"${TEST_CFG_REMOTE2_SSH_KEY}_ci\"; \
+    chown test:test \"${TEST_CFG_REMOTE2_SSH_KEY}\"; \
+    chmod 600 \"${TEST_CFG_REMOTE2_SSH_KEY}\"; \
     ls -la /home/test/.ssh/; \
 fi; \
 ls -la ./; \
diff --git a/Dockerfile--astralinux_1_7.tmpl b/Dockerfile--astralinux_1_7.tmpl
index 647e9a9..bbb060b 100644
--- a/Dockerfile--astralinux_1_7.tmpl
+++ b/Dockerfile--astralinux_1_7.tmpl
@@ -69,14 +69,14 @@ fi; \
 ls -la /home/test/.ssh/; \
 su test -c \"ssh-keyscan -H localhost >> /home/test/.ssh/known_hosts\"; \
 su test -c \"ssh-keyscan -H 127.0.0.1 >> /home/test/.ssh/known_hosts\"; \
-if [ -n \"${TEST_PARAM_REMOTE2_HOST:-}\" ]; then \
-    su test -c \"ssh-keyscan -H ${TEST_PARAM_REMOTE2_HOST} >> /home/test/.ssh/known_hosts\"; \
+if [ -n \"${TEST_CFG_REMOTE2_HOST:-}\" ]; then \
+    su test -c \"ssh-keyscan -H ${TEST_CFG_REMOTE2_HOST} >> /home/test/.ssh/known_hosts\"; \
 fi; \
-if [ -n \"${TEST_PARAM_REMOTE2_SSH_KEY:-}\" ]; then \
-    cp \"${TEST_PARAM_REMOTE2_SSH_KEY}\" \"${TEST_PARAM_REMOTE2_SSH_KEY}_ci\"; \
-    export TEST_PARAM_REMOTE2_SSH_KEY=\"${TEST_PARAM_REMOTE2_SSH_KEY}_ci\"; \
-    chown test:test \"${TEST_PARAM_REMOTE2_SSH_KEY}\"; \
-    chmod 600 \"${TEST_PARAM_REMOTE2_SSH_KEY}\"; \
+if [ -n \"${TEST_CFG_REMOTE2_SSH_KEY:-}\" ]; then \
+    cp \"${TEST_CFG_REMOTE2_SSH_KEY}\" \"${TEST_CFG_REMOTE2_SSH_KEY}_ci\"; \
+    export TEST_CFG_REMOTE2_SSH_KEY=\"${TEST_CFG_REMOTE2_SSH_KEY}_ci\"; \
+    chown test:test \"${TEST_CFG_REMOTE2_SSH_KEY}\"; \
+    chmod 600 \"${TEST_CFG_REMOTE2_SSH_KEY}\"; \
     ls -la /home/test/.ssh/; \
 fi; \
 ls -la ./; \
diff --git a/Dockerfile--ubuntu_24_04.tmpl b/Dockerfile--ubuntu_24_04.tmpl
index b9824eb..57fe8dd 100644
--- a/Dockerfile--ubuntu_24_04.tmpl
+++ b/Dockerfile--ubuntu_24_04.tmpl
@@ -61,14 +61,14 @@ fi; \
 ls -la /home/test/.ssh/; \
 su test -c \"ssh-keyscan -H localhost >> /home/test/.ssh/known_hosts\"; \
 su test -c \"ssh-keyscan -H 127.0.0.1 >> /home/test/.ssh/known_hosts\"; \
-if [ -n \"${TEST_PARAM_REMOTE2_HOST:-}\" ]; then \
-    su test -c \"ssh-keyscan -H ${TEST_PARAM_REMOTE2_HOST} >> /home/test/.ssh/known_hosts\"; \
+if [ -n \"${TEST_CFG_REMOTE2_HOST:-}\" ]; then \
+    su test -c \"ssh-keyscan -H ${TEST_CFG_REMOTE2_HOST} >> /home/test/.ssh/known_hosts\"; \
 fi; \
-if [ -n \"${TEST_PARAM_REMOTE2_SSH_KEY:-}\" ]; then \
-    cp \"${TEST_PARAM_REMOTE2_SSH_KEY}\" \"${TEST_PARAM_REMOTE2_SSH_KEY}_ci\"; \
-    export TEST_PARAM_REMOTE2_SSH_KEY=\"${TEST_PARAM_REMOTE2_SSH_KEY}_ci\"; \
-    chown test:test \"${TEST_PARAM_REMOTE2_SSH_KEY}\"; \
-    chmod 600 \"${TEST_PARAM_REMOTE2_SSH_KEY}\"; \
+if [ -n \"${TEST_CFG_REMOTE2_SSH_KEY:-}\" ]; then \
+    cp \"${TEST_CFG_REMOTE2_SSH_KEY}\" \"${TEST_CFG_REMOTE2_SSH_KEY}_ci\"; \
+    export TEST_CFG_REMOTE2_SSH_KEY=\"${TEST_CFG_REMOTE2_SSH_KEY}_ci\"; \
+    chown test:test \"${TEST_CFG_REMOTE2_SSH_KEY}\"; \
+    chmod 600 \"${TEST_CFG_REMOTE2_SSH_KEY}\"; \
     ls -la /home/test/.ssh/; \
 fi; \
 ls -la ./; \
diff --git a/tests/helpers/global_data.py b/tests/helpers/global_data.py
index f107711..ed8b333 100644
--- a/tests/helpers/global_data.py
+++ b/tests/helpers/global_data.py
@@ -19,10 +19,10 @@ def __init__(self, sign: str, os_ops: OsOperations):
 
 class OsOpsDescrs:
     sm_remote_conn_params = ConnectionParams(
-        host=os.getenv('TEST_PARAM_REMOTE2_HOST') or '127.0.0.1',
-        username=os.getenv('TEST_PARAM_REMOTE2_USERNAME'),
-        ssh_key=os.getenv('TEST_PARAM_REMOTE2_SSH_KEY'),
-        password=os.getenv('TEST_PARAM_REMOTE2_PASSWORD'),
+        host=os.getenv('TEST_CFG_REMOTE2_HOST') or '127.0.0.1',
+        username=os.getenv('TEST_CFG_REMOTE2_USERNAME'),
+        ssh_key=os.getenv('TEST_CFG_REMOTE2_SSH_KEY'),
+        password=os.getenv('TEST_CFG_REMOTE2_PASSWORD'),
     )
 
     sm_remote_os_ops = RemoteOperations(sm_remote_conn_params)

From 775fc0869b6074e9066c97bdcb64dac885c5c351 Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Fri, 3 Jul 2026 20:30:40 +0300
Subject: [PATCH 29/66] New test parameter TEST_CFG_REMOTE2_PORT is added

CI assign 22 to it.
---
 .github/workflows/ci.yml     | 1 +
 tests/helpers/global_data.py | 1 +
 2 files changed, 2 insertions(+)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ecf69a8..ca16531 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -155,6 +155,7 @@ jobs:
           -v ${{ github.workspace }}/${{ env.RUN_CFG__LOGS_DIR }}:/home/test/testgres/logs \
           -v ${{ github.workspace }}/${{ env.RUN_CFG__SSH_KEY_NAME }}:/home/test/testgres/id_ed25519_test:ro \
           -e TEST_CFG_REMOTE2_HOST="${{ env.RUN_CFG__REMOTE2_NAME }}" \
+          -e TEST_CFG_REMOTE2_HOST="22" \
           -e TEST_CFG_REMOTE2_USERNAME="test" \
           -e TEST_CFG_REMOTE2_SSH_KEY="/home/test/testgres/id_ed25519_test" \
           "${{ env.RUN_CFG__DOCKER_IMAGE_NAME }}"
diff --git a/tests/helpers/global_data.py b/tests/helpers/global_data.py
index ed8b333..2752a58 100644
--- a/tests/helpers/global_data.py
+++ b/tests/helpers/global_data.py
@@ -20,6 +20,7 @@ def __init__(self, sign: str, os_ops: OsOperations):
 class OsOpsDescrs:
     sm_remote_conn_params = ConnectionParams(
         host=os.getenv('TEST_CFG_REMOTE2_HOST') or '127.0.0.1',
+        port=int(os.getenv('TEST_CFG_REMOTE2_PORT', 0)) if os.getenv('TEST_CFG_REMOTE2_PORT') else None,
         username=os.getenv('TEST_CFG_REMOTE2_USERNAME'),
         ssh_key=os.getenv('TEST_CFG_REMOTE2_SSH_KEY'),
         password=os.getenv('TEST_CFG_REMOTE2_PASSWORD'),

From 7343ce456545d483086096061bc813595c014d51 Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Fri, 3 Jul 2026 20:35:41 +0300
Subject: [PATCH 30/66] correction: TEST_CFG_xxx -> TEST_CFG__xxx (unification)

---
 .github/workflows/ci.yml        |  8 ++++----
 Dockerfile--alpine.tmpl         | 14 +++++++-------
 Dockerfile--altlinux_10.tmpl    | 14 +++++++-------
 Dockerfile--altlinux_11.tmpl    | 14 +++++++-------
 Dockerfile--astralinux_1_7.tmpl | 14 +++++++-------
 Dockerfile--ubuntu_24_04.tmpl   | 14 +++++++-------
 tests/helpers/global_data.py    | 10 +++++-----
 7 files changed, 44 insertions(+), 44 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ca16531..bbc4e25 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -154,10 +154,10 @@ jobs:
           --link ${{ env.RUN_CFG__REMOTE2_NAME }}:${{ env.RUN_CFG__REMOTE2_NAME }} \
           -v ${{ github.workspace }}/${{ env.RUN_CFG__LOGS_DIR }}:/home/test/testgres/logs \
           -v ${{ github.workspace }}/${{ env.RUN_CFG__SSH_KEY_NAME }}:/home/test/testgres/id_ed25519_test:ro \
-          -e TEST_CFG_REMOTE2_HOST="${{ env.RUN_CFG__REMOTE2_NAME }}" \
-          -e TEST_CFG_REMOTE2_HOST="22" \
-          -e TEST_CFG_REMOTE2_USERNAME="test" \
-          -e TEST_CFG_REMOTE2_SSH_KEY="/home/test/testgres/id_ed25519_test" \
+          -e TEST_CFG__REMOTE2_HOST="${{ env.RUN_CFG__REMOTE2_NAME }}" \
+          -e TEST_CFG__REMOTE2_HOST="22" \
+          -e TEST_CFG__REMOTE2_USERNAME="test" \
+          -e TEST_CFG__REMOTE2_SSH_KEY="/home/test/testgres/id_ed25519_test" \
           "${{ env.RUN_CFG__DOCKER_IMAGE_NAME }}"
 
     - name: Upload Logs
diff --git a/Dockerfile--alpine.tmpl b/Dockerfile--alpine.tmpl
index 891ef61..7d7f590 100644
--- a/Dockerfile--alpine.tmpl
+++ b/Dockerfile--alpine.tmpl
@@ -67,14 +67,14 @@ fi; \
 ls -la /home/test/.ssh/; \
 su test -c \"ssh-keyscan -H localhost >> /home/test/.ssh/known_hosts\"; \
 su test -c \"ssh-keyscan -H 127.0.0.1 >> /home/test/.ssh/known_hosts\"; \
-if [ -n \"${TEST_CFG_REMOTE2_HOST:-}\" ]; then \
-    su test -c \"ssh-keyscan -H ${TEST_CFG_REMOTE2_HOST} >> /home/test/.ssh/known_hosts\"; \
+if [ -n \"${TEST_CFG__REMOTE2_HOST:-}\" ]; then \
+    su test -c \"ssh-keyscan -H ${TEST_CFG__REMOTE2_HOST} >> /home/test/.ssh/known_hosts\"; \
 fi; \
-if [ -n \"${TEST_CFG_REMOTE2_SSH_KEY:-}\" ]; then \
-    cp \"${TEST_CFG_REMOTE2_SSH_KEY}\" \"${TEST_CFG_REMOTE2_SSH_KEY}_ci\"; \
-    export TEST_CFG_REMOTE2_SSH_KEY=\"${TEST_CFG_REMOTE2_SSH_KEY}_ci\"; \
-    chown test:test \"${TEST_CFG_REMOTE2_SSH_KEY}\"; \
-    chmod 600 \"${TEST_CFG_REMOTE2_SSH_KEY}\"; \
+if [ -n \"${TEST_CFG__REMOTE2_SSH_KEY:-}\" ]; then \
+    cp \"${TEST_CFG__REMOTE2_SSH_KEY}\" \"${TEST_CFG__REMOTE2_SSH_KEY}_ci\"; \
+    export TEST_CFG__REMOTE2_SSH_KEY=\"${TEST_CFG__REMOTE2_SSH_KEY}_ci\"; \
+    chown test:test \"${TEST_CFG__REMOTE2_SSH_KEY}\"; \
+    chmod 600 \"${TEST_CFG__REMOTE2_SSH_KEY}\"; \
     ls -la /home/test/.ssh/; \
 fi; \
 ls -la ./; \
diff --git a/Dockerfile--altlinux_10.tmpl b/Dockerfile--altlinux_10.tmpl
index 08d89f7..5d8cf74 100644
--- a/Dockerfile--altlinux_10.tmpl
+++ b/Dockerfile--altlinux_10.tmpl
@@ -71,14 +71,14 @@ fi; \
 ls -la /home/test/.ssh/; \
 su -c \"ssh-keyscan -H localhost >> /home/test/.ssh/known_hosts\" test; \
 su -c \"ssh-keyscan -H 127.0.0.1 >> /home/test/.ssh/known_hosts\" test; \
-if [ -n \"${TEST_CFG_REMOTE2_HOST:-}\" ]; then \
-    su -c \"ssh-keyscan -H ${TEST_CFG_REMOTE2_HOST} >> /home/test/.ssh/known_hosts\" test; \
+if [ -n \"${TEST_CFG__REMOTE2_HOST:-}\" ]; then \
+    su -c \"ssh-keyscan -H ${TEST_CFG__REMOTE2_HOST} >> /home/test/.ssh/known_hosts\" test; \
 fi; \
-if [ -n \"${TEST_CFG_REMOTE2_SSH_KEY:-}\" ]; then \
-    cp \"${TEST_CFG_REMOTE2_SSH_KEY}\" \"${TEST_CFG_REMOTE2_SSH_KEY}_ci\"; \
-    export TEST_CFG_REMOTE2_SSH_KEY=\"${TEST_CFG_REMOTE2_SSH_KEY}_ci\"; \
-    chown test:test \"${TEST_CFG_REMOTE2_SSH_KEY}\"; \
-    chmod 600 \"${TEST_CFG_REMOTE2_SSH_KEY}\"; \
+if [ -n \"${TEST_CFG__REMOTE2_SSH_KEY:-}\" ]; then \
+    cp \"${TEST_CFG__REMOTE2_SSH_KEY}\" \"${TEST_CFG__REMOTE2_SSH_KEY}_ci\"; \
+    export TEST_CFG__REMOTE2_SSH_KEY=\"${TEST_CFG__REMOTE2_SSH_KEY}_ci\"; \
+    chown test:test \"${TEST_CFG__REMOTE2_SSH_KEY}\"; \
+    chmod 600 \"${TEST_CFG__REMOTE2_SSH_KEY}\"; \
     ls -la /home/test/.ssh/; \
 fi; \
 ls -la ./; \
diff --git a/Dockerfile--altlinux_11.tmpl b/Dockerfile--altlinux_11.tmpl
index 42cba1a..ba2d515 100644
--- a/Dockerfile--altlinux_11.tmpl
+++ b/Dockerfile--altlinux_11.tmpl
@@ -74,14 +74,14 @@ fi; \
 ls -la /home/test/.ssh/; \
 su -c \"ssh-keyscan -H localhost >> /home/test/.ssh/known_hosts\" test; \
 su -c \"ssh-keyscan -H 127.0.0.1 >> /home/test/.ssh/known_hosts\" test; \
-if [ -n \"${TEST_CFG_REMOTE2_HOST:-}\" ]; then \
-    su -c \"ssh-keyscan -H ${TEST_CFG_REMOTE2_HOST} >> /home/test/.ssh/known_hosts\" test; \
+if [ -n \"${TEST_CFG__REMOTE2_HOST:-}\" ]; then \
+    su -c \"ssh-keyscan -H ${TEST_CFG__REMOTE2_HOST} >> /home/test/.ssh/known_hosts\" test; \
 fi; \
-if [ -n \"${TEST_CFG_REMOTE2_SSH_KEY:-}\" ]; then \
-    cp \"${TEST_CFG_REMOTE2_SSH_KEY}\" \"${TEST_CFG_REMOTE2_SSH_KEY}_ci\"; \
-    export TEST_CFG_REMOTE2_SSH_KEY=\"${TEST_CFG_REMOTE2_SSH_KEY}_ci\"; \
-    chown test:test \"${TEST_CFG_REMOTE2_SSH_KEY}\"; \
-    chmod 600 \"${TEST_CFG_REMOTE2_SSH_KEY}\"; \
+if [ -n \"${TEST_CFG__REMOTE2_SSH_KEY:-}\" ]; then \
+    cp \"${TEST_CFG__REMOTE2_SSH_KEY}\" \"${TEST_CFG__REMOTE2_SSH_KEY}_ci\"; \
+    export TEST_CFG__REMOTE2_SSH_KEY=\"${TEST_CFG__REMOTE2_SSH_KEY}_ci\"; \
+    chown test:test \"${TEST_CFG__REMOTE2_SSH_KEY}\"; \
+    chmod 600 \"${TEST_CFG__REMOTE2_SSH_KEY}\"; \
     ls -la /home/test/.ssh/; \
 fi; \
 ls -la ./; \
diff --git a/Dockerfile--astralinux_1_7.tmpl b/Dockerfile--astralinux_1_7.tmpl
index bbb060b..4e2a519 100644
--- a/Dockerfile--astralinux_1_7.tmpl
+++ b/Dockerfile--astralinux_1_7.tmpl
@@ -69,14 +69,14 @@ fi; \
 ls -la /home/test/.ssh/; \
 su test -c \"ssh-keyscan -H localhost >> /home/test/.ssh/known_hosts\"; \
 su test -c \"ssh-keyscan -H 127.0.0.1 >> /home/test/.ssh/known_hosts\"; \
-if [ -n \"${TEST_CFG_REMOTE2_HOST:-}\" ]; then \
-    su test -c \"ssh-keyscan -H ${TEST_CFG_REMOTE2_HOST} >> /home/test/.ssh/known_hosts\"; \
+if [ -n \"${TEST_CFG__REMOTE2_HOST:-}\" ]; then \
+    su test -c \"ssh-keyscan -H ${TEST_CFG__REMOTE2_HOST} >> /home/test/.ssh/known_hosts\"; \
 fi; \
-if [ -n \"${TEST_CFG_REMOTE2_SSH_KEY:-}\" ]; then \
-    cp \"${TEST_CFG_REMOTE2_SSH_KEY}\" \"${TEST_CFG_REMOTE2_SSH_KEY}_ci\"; \
-    export TEST_CFG_REMOTE2_SSH_KEY=\"${TEST_CFG_REMOTE2_SSH_KEY}_ci\"; \
-    chown test:test \"${TEST_CFG_REMOTE2_SSH_KEY}\"; \
-    chmod 600 \"${TEST_CFG_REMOTE2_SSH_KEY}\"; \
+if [ -n \"${TEST_CFG__REMOTE2_SSH_KEY:-}\" ]; then \
+    cp \"${TEST_CFG__REMOTE2_SSH_KEY}\" \"${TEST_CFG__REMOTE2_SSH_KEY}_ci\"; \
+    export TEST_CFG__REMOTE2_SSH_KEY=\"${TEST_CFG__REMOTE2_SSH_KEY}_ci\"; \
+    chown test:test \"${TEST_CFG__REMOTE2_SSH_KEY}\"; \
+    chmod 600 \"${TEST_CFG__REMOTE2_SSH_KEY}\"; \
     ls -la /home/test/.ssh/; \
 fi; \
 ls -la ./; \
diff --git a/Dockerfile--ubuntu_24_04.tmpl b/Dockerfile--ubuntu_24_04.tmpl
index 57fe8dd..c4d8ec1 100644
--- a/Dockerfile--ubuntu_24_04.tmpl
+++ b/Dockerfile--ubuntu_24_04.tmpl
@@ -61,14 +61,14 @@ fi; \
 ls -la /home/test/.ssh/; \
 su test -c \"ssh-keyscan -H localhost >> /home/test/.ssh/known_hosts\"; \
 su test -c \"ssh-keyscan -H 127.0.0.1 >> /home/test/.ssh/known_hosts\"; \
-if [ -n \"${TEST_CFG_REMOTE2_HOST:-}\" ]; then \
-    su test -c \"ssh-keyscan -H ${TEST_CFG_REMOTE2_HOST} >> /home/test/.ssh/known_hosts\"; \
+if [ -n \"${TEST_CFG__REMOTE2_HOST:-}\" ]; then \
+    su test -c \"ssh-keyscan -H ${TEST_CFG__REMOTE2_HOST} >> /home/test/.ssh/known_hosts\"; \
 fi; \
-if [ -n \"${TEST_CFG_REMOTE2_SSH_KEY:-}\" ]; then \
-    cp \"${TEST_CFG_REMOTE2_SSH_KEY}\" \"${TEST_CFG_REMOTE2_SSH_KEY}_ci\"; \
-    export TEST_CFG_REMOTE2_SSH_KEY=\"${TEST_CFG_REMOTE2_SSH_KEY}_ci\"; \
-    chown test:test \"${TEST_CFG_REMOTE2_SSH_KEY}\"; \
-    chmod 600 \"${TEST_CFG_REMOTE2_SSH_KEY}\"; \
+if [ -n \"${TEST_CFG__REMOTE2_SSH_KEY:-}\" ]; then \
+    cp \"${TEST_CFG__REMOTE2_SSH_KEY}\" \"${TEST_CFG__REMOTE2_SSH_KEY}_ci\"; \
+    export TEST_CFG__REMOTE2_SSH_KEY=\"${TEST_CFG__REMOTE2_SSH_KEY}_ci\"; \
+    chown test:test \"${TEST_CFG__REMOTE2_SSH_KEY}\"; \
+    chmod 600 \"${TEST_CFG__REMOTE2_SSH_KEY}\"; \
     ls -la /home/test/.ssh/; \
 fi; \
 ls -la ./; \
diff --git a/tests/helpers/global_data.py b/tests/helpers/global_data.py
index 2752a58..3de9d82 100644
--- a/tests/helpers/global_data.py
+++ b/tests/helpers/global_data.py
@@ -19,11 +19,11 @@ def __init__(self, sign: str, os_ops: OsOperations):
 
 class OsOpsDescrs:
     sm_remote_conn_params = ConnectionParams(
-        host=os.getenv('TEST_CFG_REMOTE2_HOST') or '127.0.0.1',
-        port=int(os.getenv('TEST_CFG_REMOTE2_PORT', 0)) if os.getenv('TEST_CFG_REMOTE2_PORT') else None,
-        username=os.getenv('TEST_CFG_REMOTE2_USERNAME'),
-        ssh_key=os.getenv('TEST_CFG_REMOTE2_SSH_KEY'),
-        password=os.getenv('TEST_CFG_REMOTE2_PASSWORD'),
+        host=os.getenv('TEST_CFG__REMOTE2_HOST') or '127.0.0.1',
+        port=int(os.getenv('TEST_CFG__REMOTE2_PORT', 0)) if os.getenv('TEST_CFG__REMOTE2_PORT') else None,
+        username=os.getenv('TEST_CFG__REMOTE2_USERNAME'),
+        ssh_key=os.getenv('TEST_CFG__REMOTE2_SSH_KEY'),
+        password=os.getenv('TEST_CFG__REMOTE2_PASSWORD'),
     )
 
     sm_remote_os_ops = RemoteOperations(sm_remote_conn_params)

From 1faf3bdc86bf68cf1fa2b92ca4edcac673dbccae Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Fri, 3 Jul 2026 20:44:33 +0300
Subject: [PATCH 31/66] CI: (fix) TEST_CFG__REMOTE2_PORT=22 (not
 TEST_CFG__REMOTE2_HOST)

---
 .github/workflows/ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index bbc4e25..46a82da 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -155,7 +155,7 @@ jobs:
           -v ${{ github.workspace }}/${{ env.RUN_CFG__LOGS_DIR }}:/home/test/testgres/logs \
           -v ${{ github.workspace }}/${{ env.RUN_CFG__SSH_KEY_NAME }}:/home/test/testgres/id_ed25519_test:ro \
           -e TEST_CFG__REMOTE2_HOST="${{ env.RUN_CFG__REMOTE2_NAME }}" \
-          -e TEST_CFG__REMOTE2_HOST="22" \
+          -e TEST_CFG__REMOTE2_PORT="22" \
           -e TEST_CFG__REMOTE2_USERNAME="test" \
           -e TEST_CFG__REMOTE2_SSH_KEY="/home/test/testgres/id_ed25519_test" \
           "${{ env.RUN_CFG__DOCKER_IMAGE_NAME }}"

From 40041c65507ee657bfad816cbb30df3527be3c34 Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Fri, 3 Jul 2026 21:03:21 +0300
Subject: [PATCH 32/66] correction: TEST_CFG__REMOTE2_ --> TEST_CFG__REMOTE_

"remote2" was old and not good idea.
---
 .github/workflows/ci.yml        |  8 ++++----
 Dockerfile--alpine.tmpl         | 14 +++++++-------
 Dockerfile--altlinux_10.tmpl    | 14 +++++++-------
 Dockerfile--altlinux_11.tmpl    | 14 +++++++-------
 Dockerfile--astralinux_1_7.tmpl | 14 +++++++-------
 Dockerfile--ubuntu_24_04.tmpl   | 14 +++++++-------
 tests/helpers/global_data.py    | 10 +++++-----
 7 files changed, 44 insertions(+), 44 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 46a82da..54214b7 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -154,10 +154,10 @@ jobs:
           --link ${{ env.RUN_CFG__REMOTE2_NAME }}:${{ env.RUN_CFG__REMOTE2_NAME }} \
           -v ${{ github.workspace }}/${{ env.RUN_CFG__LOGS_DIR }}:/home/test/testgres/logs \
           -v ${{ github.workspace }}/${{ env.RUN_CFG__SSH_KEY_NAME }}:/home/test/testgres/id_ed25519_test:ro \
-          -e TEST_CFG__REMOTE2_HOST="${{ env.RUN_CFG__REMOTE2_NAME }}" \
-          -e TEST_CFG__REMOTE2_PORT="22" \
-          -e TEST_CFG__REMOTE2_USERNAME="test" \
-          -e TEST_CFG__REMOTE2_SSH_KEY="/home/test/testgres/id_ed25519_test" \
+          -e TEST_CFG__REMOTE_HOST="${{ env.RUN_CFG__REMOTE2_NAME }}" \
+          -e TEST_CFG__REMOTE_PORT="22" \
+          -e TEST_CFG__REMOTE_USERNAME="test" \
+          -e TEST_CFG__REMOTE_SSH_KEY="/home/test/testgres/id_ed25519_test" \
           "${{ env.RUN_CFG__DOCKER_IMAGE_NAME }}"
 
     - name: Upload Logs
diff --git a/Dockerfile--alpine.tmpl b/Dockerfile--alpine.tmpl
index 7d7f590..ff02d36 100644
--- a/Dockerfile--alpine.tmpl
+++ b/Dockerfile--alpine.tmpl
@@ -67,14 +67,14 @@ fi; \
 ls -la /home/test/.ssh/; \
 su test -c \"ssh-keyscan -H localhost >> /home/test/.ssh/known_hosts\"; \
 su test -c \"ssh-keyscan -H 127.0.0.1 >> /home/test/.ssh/known_hosts\"; \
-if [ -n \"${TEST_CFG__REMOTE2_HOST:-}\" ]; then \
-    su test -c \"ssh-keyscan -H ${TEST_CFG__REMOTE2_HOST} >> /home/test/.ssh/known_hosts\"; \
+if [ -n \"${TEST_CFG__REMOTE_HOST:-}\" ]; then \
+    su test -c \"ssh-keyscan -H ${TEST_CFG__REMOTE_HOST} >> /home/test/.ssh/known_hosts\"; \
 fi; \
-if [ -n \"${TEST_CFG__REMOTE2_SSH_KEY:-}\" ]; then \
-    cp \"${TEST_CFG__REMOTE2_SSH_KEY}\" \"${TEST_CFG__REMOTE2_SSH_KEY}_ci\"; \
-    export TEST_CFG__REMOTE2_SSH_KEY=\"${TEST_CFG__REMOTE2_SSH_KEY}_ci\"; \
-    chown test:test \"${TEST_CFG__REMOTE2_SSH_KEY}\"; \
-    chmod 600 \"${TEST_CFG__REMOTE2_SSH_KEY}\"; \
+if [ -n \"${TEST_CFG__REMOTE_SSH_KEY:-}\" ]; then \
+    cp \"${TEST_CFG__REMOTE_SSH_KEY}\" \"${TEST_CFG__REMOTE_SSH_KEY}_ci\"; \
+    export TEST_CFG__REMOTE_SSH_KEY=\"${TEST_CFG__REMOTE_SSH_KEY}_ci\"; \
+    chown test:test \"${TEST_CFG__REMOTE_SSH_KEY}\"; \
+    chmod 600 \"${TEST_CFG__REMOTE_SSH_KEY}\"; \
     ls -la /home/test/.ssh/; \
 fi; \
 ls -la ./; \
diff --git a/Dockerfile--altlinux_10.tmpl b/Dockerfile--altlinux_10.tmpl
index 5d8cf74..623c3cc 100644
--- a/Dockerfile--altlinux_10.tmpl
+++ b/Dockerfile--altlinux_10.tmpl
@@ -71,14 +71,14 @@ fi; \
 ls -la /home/test/.ssh/; \
 su -c \"ssh-keyscan -H localhost >> /home/test/.ssh/known_hosts\" test; \
 su -c \"ssh-keyscan -H 127.0.0.1 >> /home/test/.ssh/known_hosts\" test; \
-if [ -n \"${TEST_CFG__REMOTE2_HOST:-}\" ]; then \
-    su -c \"ssh-keyscan -H ${TEST_CFG__REMOTE2_HOST} >> /home/test/.ssh/known_hosts\" test; \
+if [ -n \"${TEST_CFG__REMOTE_HOST:-}\" ]; then \
+    su -c \"ssh-keyscan -H ${TEST_CFG__REMOTE_HOST} >> /home/test/.ssh/known_hosts\" test; \
 fi; \
-if [ -n \"${TEST_CFG__REMOTE2_SSH_KEY:-}\" ]; then \
-    cp \"${TEST_CFG__REMOTE2_SSH_KEY}\" \"${TEST_CFG__REMOTE2_SSH_KEY}_ci\"; \
-    export TEST_CFG__REMOTE2_SSH_KEY=\"${TEST_CFG__REMOTE2_SSH_KEY}_ci\"; \
-    chown test:test \"${TEST_CFG__REMOTE2_SSH_KEY}\"; \
-    chmod 600 \"${TEST_CFG__REMOTE2_SSH_KEY}\"; \
+if [ -n \"${TEST_CFG__REMOTE_SSH_KEY:-}\" ]; then \
+    cp \"${TEST_CFG__REMOTE_SSH_KEY}\" \"${TEST_CFG__REMOTE_SSH_KEY}_ci\"; \
+    export TEST_CFG__REMOTE_SSH_KEY=\"${TEST_CFG__REMOTE_SSH_KEY}_ci\"; \
+    chown test:test \"${TEST_CFG__REMOTE_SSH_KEY}\"; \
+    chmod 600 \"${TEST_CFG__REMOTE_SSH_KEY}\"; \
     ls -la /home/test/.ssh/; \
 fi; \
 ls -la ./; \
diff --git a/Dockerfile--altlinux_11.tmpl b/Dockerfile--altlinux_11.tmpl
index ba2d515..def9f0e 100644
--- a/Dockerfile--altlinux_11.tmpl
+++ b/Dockerfile--altlinux_11.tmpl
@@ -74,14 +74,14 @@ fi; \
 ls -la /home/test/.ssh/; \
 su -c \"ssh-keyscan -H localhost >> /home/test/.ssh/known_hosts\" test; \
 su -c \"ssh-keyscan -H 127.0.0.1 >> /home/test/.ssh/known_hosts\" test; \
-if [ -n \"${TEST_CFG__REMOTE2_HOST:-}\" ]; then \
-    su -c \"ssh-keyscan -H ${TEST_CFG__REMOTE2_HOST} >> /home/test/.ssh/known_hosts\" test; \
+if [ -n \"${TEST_CFG__REMOTE_HOST:-}\" ]; then \
+    su -c \"ssh-keyscan -H ${TEST_CFG__REMOTE_HOST} >> /home/test/.ssh/known_hosts\" test; \
 fi; \
-if [ -n \"${TEST_CFG__REMOTE2_SSH_KEY:-}\" ]; then \
-    cp \"${TEST_CFG__REMOTE2_SSH_KEY}\" \"${TEST_CFG__REMOTE2_SSH_KEY}_ci\"; \
-    export TEST_CFG__REMOTE2_SSH_KEY=\"${TEST_CFG__REMOTE2_SSH_KEY}_ci\"; \
-    chown test:test \"${TEST_CFG__REMOTE2_SSH_KEY}\"; \
-    chmod 600 \"${TEST_CFG__REMOTE2_SSH_KEY}\"; \
+if [ -n \"${TEST_CFG__REMOTE_SSH_KEY:-}\" ]; then \
+    cp \"${TEST_CFG__REMOTE_SSH_KEY}\" \"${TEST_CFG__REMOTE_SSH_KEY}_ci\"; \
+    export TEST_CFG__REMOTE_SSH_KEY=\"${TEST_CFG__REMOTE_SSH_KEY}_ci\"; \
+    chown test:test \"${TEST_CFG__REMOTE_SSH_KEY}\"; \
+    chmod 600 \"${TEST_CFG__REMOTE_SSH_KEY}\"; \
     ls -la /home/test/.ssh/; \
 fi; \
 ls -la ./; \
diff --git a/Dockerfile--astralinux_1_7.tmpl b/Dockerfile--astralinux_1_7.tmpl
index 4e2a519..8b1f47e 100644
--- a/Dockerfile--astralinux_1_7.tmpl
+++ b/Dockerfile--astralinux_1_7.tmpl
@@ -69,14 +69,14 @@ fi; \
 ls -la /home/test/.ssh/; \
 su test -c \"ssh-keyscan -H localhost >> /home/test/.ssh/known_hosts\"; \
 su test -c \"ssh-keyscan -H 127.0.0.1 >> /home/test/.ssh/known_hosts\"; \
-if [ -n \"${TEST_CFG__REMOTE2_HOST:-}\" ]; then \
-    su test -c \"ssh-keyscan -H ${TEST_CFG__REMOTE2_HOST} >> /home/test/.ssh/known_hosts\"; \
+if [ -n \"${TEST_CFG__REMOTE_HOST:-}\" ]; then \
+    su test -c \"ssh-keyscan -H ${TEST_CFG__REMOTE_HOST} >> /home/test/.ssh/known_hosts\"; \
 fi; \
-if [ -n \"${TEST_CFG__REMOTE2_SSH_KEY:-}\" ]; then \
-    cp \"${TEST_CFG__REMOTE2_SSH_KEY}\" \"${TEST_CFG__REMOTE2_SSH_KEY}_ci\"; \
-    export TEST_CFG__REMOTE2_SSH_KEY=\"${TEST_CFG__REMOTE2_SSH_KEY}_ci\"; \
-    chown test:test \"${TEST_CFG__REMOTE2_SSH_KEY}\"; \
-    chmod 600 \"${TEST_CFG__REMOTE2_SSH_KEY}\"; \
+if [ -n \"${TEST_CFG__REMOTE_SSH_KEY:-}\" ]; then \
+    cp \"${TEST_CFG__REMOTE_SSH_KEY}\" \"${TEST_CFG__REMOTE_SSH_KEY}_ci\"; \
+    export TEST_CFG__REMOTE_SSH_KEY=\"${TEST_CFG__REMOTE_SSH_KEY}_ci\"; \
+    chown test:test \"${TEST_CFG__REMOTE_SSH_KEY}\"; \
+    chmod 600 \"${TEST_CFG__REMOTE_SSH_KEY}\"; \
     ls -la /home/test/.ssh/; \
 fi; \
 ls -la ./; \
diff --git a/Dockerfile--ubuntu_24_04.tmpl b/Dockerfile--ubuntu_24_04.tmpl
index c4d8ec1..ae8e4f9 100644
--- a/Dockerfile--ubuntu_24_04.tmpl
+++ b/Dockerfile--ubuntu_24_04.tmpl
@@ -61,14 +61,14 @@ fi; \
 ls -la /home/test/.ssh/; \
 su test -c \"ssh-keyscan -H localhost >> /home/test/.ssh/known_hosts\"; \
 su test -c \"ssh-keyscan -H 127.0.0.1 >> /home/test/.ssh/known_hosts\"; \
-if [ -n \"${TEST_CFG__REMOTE2_HOST:-}\" ]; then \
-    su test -c \"ssh-keyscan -H ${TEST_CFG__REMOTE2_HOST} >> /home/test/.ssh/known_hosts\"; \
+if [ -n \"${TEST_CFG__REMOTE_HOST:-}\" ]; then \
+    su test -c \"ssh-keyscan -H ${TEST_CFG__REMOTE_HOST} >> /home/test/.ssh/known_hosts\"; \
 fi; \
-if [ -n \"${TEST_CFG__REMOTE2_SSH_KEY:-}\" ]; then \
-    cp \"${TEST_CFG__REMOTE2_SSH_KEY}\" \"${TEST_CFG__REMOTE2_SSH_KEY}_ci\"; \
-    export TEST_CFG__REMOTE2_SSH_KEY=\"${TEST_CFG__REMOTE2_SSH_KEY}_ci\"; \
-    chown test:test \"${TEST_CFG__REMOTE2_SSH_KEY}\"; \
-    chmod 600 \"${TEST_CFG__REMOTE2_SSH_KEY}\"; \
+if [ -n \"${TEST_CFG__REMOTE_SSH_KEY:-}\" ]; then \
+    cp \"${TEST_CFG__REMOTE_SSH_KEY}\" \"${TEST_CFG__REMOTE_SSH_KEY}_ci\"; \
+    export TEST_CFG__REMOTE_SSH_KEY=\"${TEST_CFG__REMOTE_SSH_KEY}_ci\"; \
+    chown test:test \"${TEST_CFG__REMOTE_SSH_KEY}\"; \
+    chmod 600 \"${TEST_CFG__REMOTE_SSH_KEY}\"; \
     ls -la /home/test/.ssh/; \
 fi; \
 ls -la ./; \
diff --git a/tests/helpers/global_data.py b/tests/helpers/global_data.py
index 3de9d82..ffa0103 100644
--- a/tests/helpers/global_data.py
+++ b/tests/helpers/global_data.py
@@ -19,11 +19,11 @@ def __init__(self, sign: str, os_ops: OsOperations):
 
 class OsOpsDescrs:
     sm_remote_conn_params = ConnectionParams(
-        host=os.getenv('TEST_CFG__REMOTE2_HOST') or '127.0.0.1',
-        port=int(os.getenv('TEST_CFG__REMOTE2_PORT', 0)) if os.getenv('TEST_CFG__REMOTE2_PORT') else None,
-        username=os.getenv('TEST_CFG__REMOTE2_USERNAME'),
-        ssh_key=os.getenv('TEST_CFG__REMOTE2_SSH_KEY'),
-        password=os.getenv('TEST_CFG__REMOTE2_PASSWORD'),
+        host=os.getenv('TEST_CFG__REMOTE_HOST') or '127.0.0.1',
+        port=int(os.getenv('TEST_CFG__REMOTE_PORT', 0)) if os.getenv('TEST_CFG__REMOTE_PORT') else None,
+        username=os.getenv('TEST_CFG__REMOTE_USERNAME'),
+        ssh_key=os.getenv('TEST_CFG__REMOTE_SSH_KEY'),
+        password=os.getenv('TEST_CFG__REMOTE_PASSWORD'),
     )
 
     sm_remote_os_ops = RemoteOperations(sm_remote_conn_params)

From 4f658d2808ab16c142e15da1e07660b4394fdaee Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Fri, 3 Jul 2026 21:07:15 +0300
Subject: [PATCH 33/66] CI: ci.yml is updated (remote2 -> remote)

---
 .github/workflows/ci.yml | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 54214b7..061c6cb 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -106,7 +106,7 @@ jobs:
         echo "RUN_CFG__NOW=$(date +'%Y%m%d_%H%M%S')" >> $GITHUB_ENV
         echo "RUN_CFG__LOGS_DIR=logs-${{ env.BASE_SIGN }}" >> $GITHUB_ENV
         echo "RUN_CFG__DOCKER_IMAGE_NAME=tests-${{ env.BASE_SIGN }}" >> $GITHUB_ENV
-        echo "RUN_CFG__REMOTE2_NAME=remote2-${{ env.BASE_SIGN }}" >> $GITHUB_ENV
+        echo "RUN_CFG__REMOTE_NAME=remote2-${{ env.BASE_SIGN }}" >> $GITHUB_ENV
         echo "RUN_CFG__SSH_KEY_NAME=id_ed25519-${{ env.BASE_SIGN }}" >> $GITHUB_ENV
         echo "---------- [$GITHUB_ENV]"
         cat $GITHUB_ENV
@@ -124,16 +124,16 @@ jobs:
         # Generate a key without a password directly on the GitHub Actions host
         ssh-keygen -t ed25519 -N "" -f ${{ github.workspace }}/${{ env.RUN_CFG__SSH_KEY_NAME }}
 
-    - name: Run second target host (remote2)
+    - name: Run second target host (for remote operations)
       run: |
-        docker run -d -t --name ${{ env.RUN_CFG__REMOTE2_NAME }} \
+        docker run -d -t --name ${{ env.RUN_CFG__REMOTE_NAME }} \
           -v ${{ github.workspace }}/${{ env.RUN_CFG__SSH_KEY_NAME }}.pub:/home/test/.ssh/authorized_keys_ci:ro \
           "${{ env.RUN_CFG__DOCKER_IMAGE_NAME }}" \
           - sleep infinity
 
         sleep 1.0
 
-        docker exec -u root ${{ env.RUN_CFG__REMOTE2_NAME }} sh -c "
+        docker exec -u root ${{ env.RUN_CFG__REMOTE_NAME }} sh -c "
           echo '--- INSIDE CONTAINER OS ---' && \
           cat /etc/os-release && \
           echo '---' && \
@@ -151,10 +151,10 @@ jobs:
         # Pass environment variables so Python tests know where to start.
         # Link the containers using --link so the name "remote2" resolves to an IP address.
         docker run -t \
-          --link ${{ env.RUN_CFG__REMOTE2_NAME }}:${{ env.RUN_CFG__REMOTE2_NAME }} \
+          --link ${{ env.RUN_CFG__REMOTE_NAME }}:${{ env.RUN_CFG__REMOTE_NAME }} \
           -v ${{ github.workspace }}/${{ env.RUN_CFG__LOGS_DIR }}:/home/test/testgres/logs \
           -v ${{ github.workspace }}/${{ env.RUN_CFG__SSH_KEY_NAME }}:/home/test/testgres/id_ed25519_test:ro \
-          -e TEST_CFG__REMOTE_HOST="${{ env.RUN_CFG__REMOTE2_NAME }}" \
+          -e TEST_CFG__REMOTE_HOST="${{ env.RUN_CFG__REMOTE_NAME }}" \
           -e TEST_CFG__REMOTE_PORT="22" \
           -e TEST_CFG__REMOTE_USERNAME="test" \
           -e TEST_CFG__REMOTE_SSH_KEY="/home/test/testgres/id_ed25519_test" \

From a3eab07ac9bae05fc63a2e0736d0dfb4032e5e7c Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Fri, 3 Jul 2026 21:28:40 +0300
Subject: [PATCH 34/66] English

---
 tests/test_os_ops_common.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/test_os_ops_common.py b/tests/test_os_ops_common.py
index 4085940..01c56a5 100644
--- a/tests/test_os_ops_common.py
+++ b/tests/test_os_ops_common.py
@@ -2732,7 +2732,7 @@ def test_prove_environment_isolation(
         #
         # Author: Marg G. (mark@google.com)
         #
-        # It used as is. Without any changes.
+        # It is used as is, without any modifications.
         #
 
         assert type(os_ops_descr) is OsOpsDescr

From f962fece5292e6d70cbf9ae7b378df837e5d32f4 Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Sat, 4 Jul 2026 18:58:42 +0300
Subject: [PATCH 35/66] OsOpsDescrs is updated

- it uses _to_int_or_none
- it os.getenv('TEST_CFG__REMOTE_HOST', '127.0.0.1')
---
 tests/helpers/global_data.py | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/tests/helpers/global_data.py b/tests/helpers/global_data.py
index ffa0103..16032bd 100644
--- a/tests/helpers/global_data.py
+++ b/tests/helpers/global_data.py
@@ -4,6 +4,7 @@
 from src.remote_ops import RemoteOperations
 
 import os
+import typing
 
 
 class OsOpsDescr:
@@ -17,10 +18,14 @@ def __init__(self, sign: str, os_ops: OsOperations):
         self.os_ops = os_ops
 
 
+def _to_int_or_none(v: typing.Any) -> typing.Optional[int]:
+    return v if v is None else int(v)
+
+
 class OsOpsDescrs:
     sm_remote_conn_params = ConnectionParams(
-        host=os.getenv('TEST_CFG__REMOTE_HOST') or '127.0.0.1',
-        port=int(os.getenv('TEST_CFG__REMOTE_PORT', 0)) if os.getenv('TEST_CFG__REMOTE_PORT') else None,
+        host=os.getenv('TEST_CFG__REMOTE_HOST', '127.0.0.1'),
+        port=_to_int_or_none(os.getenv('TEST_CFG__REMOTE_PORT')),
         username=os.getenv('TEST_CFG__REMOTE_USERNAME'),
         ssh_key=os.getenv('TEST_CFG__REMOTE_SSH_KEY'),
         password=os.getenv('TEST_CFG__REMOTE_PASSWORD'),

From 41a1d55996f5f3132aea2a5bf25637270852934e Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Sat, 4 Jul 2026 18:59:39 +0300
Subject: [PATCH 36/66] run_tests3.sh prints values of "TEST_CFG__xxx"

---
 run_tests3.sh | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/run_tests3.sh b/run_tests3.sh
index af70f5e..1723a8f 100755
--- a/run_tests3.sh
+++ b/run_tests3.sh
@@ -10,6 +10,8 @@ source "${VENV_PATH}/bin/activate"
 pip install --upgrade pip setuptools wheel
 python3 -m pip install -r tests/requirements.txt
 
+export -p | grep "TEST_CFG__"
+
 # run builtin tests
 python3 -m pytest -l -vvv -n 4
 

From f58a6d68730cb4466d644b9791f29191af5f18af Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Sat, 4 Jul 2026 19:19:09 +0300
Subject: [PATCH 37/66] run_tests3.sh prints ALL envs

---
 run_tests3.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/run_tests3.sh b/run_tests3.sh
index 1723a8f..339340e 100755
--- a/run_tests3.sh
+++ b/run_tests3.sh
@@ -10,7 +10,7 @@ source "${VENV_PATH}/bin/activate"
 pip install --upgrade pip setuptools wheel
 python3 -m pip install -r tests/requirements.txt
 
-export -p | grep "TEST_CFG__"
+export -p
 
 # run builtin tests
 python3 -m pytest -l -vvv -n 4

From 55d4818404f28d51a4cdcbf45e9a4684c640e3ba Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Sat, 4 Jul 2026 20:51:36 +0300
Subject: [PATCH 38/66] fix: altlinux ran all the tests on the one machine

We have to transfter TEST_CFG__ parameters to "su - test -c ..." command explicitly.
---
 Dockerfile--altlinux_10.tmpl | 7 ++++++-
 Dockerfile--altlinux_11.tmpl | 7 ++++++-
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/Dockerfile--altlinux_10.tmpl b/Dockerfile--altlinux_10.tmpl
index 623c3cc..8ac79cc 100644
--- a/Dockerfile--altlinux_10.tmpl
+++ b/Dockerfile--altlinux_10.tmpl
@@ -82,5 +82,10 @@ if [ -n \"${TEST_CFG__REMOTE_SSH_KEY:-}\" ]; then \
     ls -la /home/test/.ssh/; \
 fi; \
 ls -la ./; \
-su - test -c \"cd /home/test/testgres && bash ./run_tests3.sh\"; \
+# AUTOMATIC TRANSFER: Save all TEST_CFG__ variables to a temporary file \
+(env | grep '^TEST_CFG__' | sed 's/^/export /' || echo '') > ./test_cfg_env.sh; \
+chown test:test ./test_cfg_env.sh; \
+cat ./test_cfg_env.sh; \
+# Run su -, pull in the file with variables and start the tests \
+su - test -c \"cd /home/test/testgres && source ./test_cfg_env.sh && bash ./run_tests3.sh\"; \
 "]
diff --git a/Dockerfile--altlinux_11.tmpl b/Dockerfile--altlinux_11.tmpl
index def9f0e..703543f 100644
--- a/Dockerfile--altlinux_11.tmpl
+++ b/Dockerfile--altlinux_11.tmpl
@@ -85,5 +85,10 @@ if [ -n \"${TEST_CFG__REMOTE_SSH_KEY:-}\" ]; then \
     ls -la /home/test/.ssh/; \
 fi; \
 ls -la ./; \
-su - test -c \"cd /home/test/testgres && bash ./run_tests3.sh\"; \
+# AUTOMATIC TRANSFER: Save all TEST_CFG__ variables to a temporary file \
+(env | grep '^TEST_CFG__' | sed 's/^/export /' || echo '') > ./test_cfg_env.sh; \
+chown test:test ./test_cfg_env.sh; \
+cat ./test_cfg_env.sh; \
+# Run su -, pull in the file with variables and start the tests \
+su - test -c \"cd /home/test/testgres && source ./test_cfg_env.sh && bash ./run_tests3.sh\"; \
 "]

From ab2ea3db2cc3d86e67474f3bd126b2a77a4df705 Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Sat, 4 Jul 2026 21:34:19 +0300
Subject: [PATCH 39/66] test_prove_environment_isolation is updated

---
 tests/test_os_ops_common.py | 27 ++++++++++-----------------
 1 file changed, 10 insertions(+), 17 deletions(-)

diff --git a/tests/test_os_ops_common.py b/tests/test_os_ops_common.py
index 01c56a5..513dcff 100644
--- a/tests/test_os_ops_common.py
+++ b/tests/test_os_ops_common.py
@@ -2732,8 +2732,6 @@ def test_prove_environment_isolation(
         #
         # Author: Marg G. (mark@google.com)
         #
-        # It is used as is, without any modifications.
-        #
 
         assert type(os_ops_descr) is OsOpsDescr
         os_ops = os_ops_descr.os_ops
@@ -2746,6 +2744,7 @@ def test_prove_environment_isolation(
         try:
             # Используем cat, который мы уже проверили
             os_release = os_ops.read("/etc/os-release")
+            assert type(os_release) is str
             # Вытаскиваем только PRETTY_NAME для компактности в логах
             pretty_name = "Unknown Linux"
             for line in os_release.splitlines():
@@ -2756,23 +2755,17 @@ def test_prove_environment_isolation(
         except Exception as e:
             logging.error(f"Failed to read os-release: {e}")
 
-        # 2. Забираем IP-адреса через 'ip route' или 'ip address'
-        # Чтобы не парсить гигантскую простыню ip addr, возьмем интерфейс, который смотрит наружу
+        # 2. Просто выводим сетевой ландшафт "как есть" и не паримся!
         try:
-            # awk у нас теперь работает как надо, так что забираем чистый IP
-            cmd = ["sh", "-c", "ip route get 1.1.1.1 | awk '{print $7; exit}'"]
-            ip_r = os_ops.exec_command(cmd, encoding="utf-8")
-            ip_clean = ip_r.strip() if isinstance(ip_r, str) else "unknown"
-
-            # Если ip route пустой (например, нет внешнего интернета в контейнере), берем дефолтный ip addr
-            if not ip_clean:
-                cmd = ["sh", "-c", "ip address show eth0 | grep 'inet ' | awk '{print $2}' | cut -d/ -f1"]
-                ip_r = os_ops.exec_command(cmd, encoding="utf-8")
-                ip_clean = ip_r.strip() if isinstance(ip_r, str) else "unknown"
-
-            logging.info(f"Machine IP Address   : {ip_clean}")
+            cmd = ["ip", "address"]
+            ip_output = os_ops.exec_command(cmd, encoding="utf-8")
+            assert type(ip_output) is str
+            logging.info("Network interfaces info:")
+            # Печатаем всю простыню целиком, добавив отступы для красоты
+            for line in ip_output.splitlines():
+                logging.info(f"  {line}")
         except Exception as e:
-            logging.error(f"Failed to get IP address: {e}")
+            logging.error(f"Failed to get ip address output: {e}")
 
         logging.info("=================== COKANUM PROOF END =====================")
 

From 02f6762b80cdf23cb21d83d2e98df13b85f23125 Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Sat, 4 Jul 2026 22:10:54 +0300
Subject: [PATCH 40/66] fix: ubuntu and astralinux are installing iproute2
 package to get a 'ip' utility.

---
 Dockerfile--astralinux_1_7.tmpl | 3 +++
 Dockerfile--ubuntu_24_04.tmpl   | 3 +++
 2 files changed, 6 insertions(+)

diff --git a/Dockerfile--astralinux_1_7.tmpl b/Dockerfile--astralinux_1_7.tmpl
index 8b1f47e..b31bbec 100644
--- a/Dockerfile--astralinux_1_7.tmpl
+++ b/Dockerfile--astralinux_1_7.tmpl
@@ -11,6 +11,9 @@ RUN apt install -y sshpass
 # RUN apt install -y time
 # RUN apt install -y netcat-traditional
 
+# it installs "ip" utility
+RUN apt install -y iproute2
+
 RUN apt install -y git
 
 # RUN apt install -y mc
diff --git a/Dockerfile--ubuntu_24_04.tmpl b/Dockerfile--ubuntu_24_04.tmpl
index ae8e4f9..18f98c4 100644
--- a/Dockerfile--ubuntu_24_04.tmpl
+++ b/Dockerfile--ubuntu_24_04.tmpl
@@ -11,6 +11,9 @@ RUN apt install -y sshpass
 RUN apt install -y time
 RUN apt install -y netcat-traditional
 
+# it installs "ip" utility
+RUN apt install -y iproute2
+
 RUN apt install -y git
 
 # RUN apt install -y mc

From 6c8b40a9b14ba08e7395224575255ccc4e16c39a Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Sat, 4 Jul 2026 22:33:56 +0300
Subject: [PATCH 41/66] test_prove_environment_isolation is updated

---
 tests/test_os_ops_common.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tests/test_os_ops_common.py b/tests/test_os_ops_common.py
index 513dcff..4f326ca 100644
--- a/tests/test_os_ops_common.py
+++ b/tests/test_os_ops_common.py
@@ -2771,6 +2771,7 @@ def test_prove_environment_isolation(
 
         # Тест всегда успешный, его цель — оставить исторический след в логах гитхаба
         assert True
+        return
 
     @staticmethod
     def helper__bug_check__unknown_os_ops_type(

From 04d55843feebb337368f5d94ca067df4267c5fd7 Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Sun, 5 Jul 2026 09:37:30 +0300
Subject: [PATCH 42/66] CI: A work with id_ed25519_test.pub is improved

We link it into /home/test/testgres/id_ed25519_test.pub

After that we copy it to /home/test/.ssh/authorized_keys
---
 .github/workflows/ci.yml | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 061c6cb..fda27fb 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -127,17 +127,20 @@ jobs:
     - name: Run second target host (for remote operations)
       run: |
         docker run -d -t --name ${{ env.RUN_CFG__REMOTE_NAME }} \
-          -v ${{ github.workspace }}/${{ env.RUN_CFG__SSH_KEY_NAME }}.pub:/home/test/.ssh/authorized_keys_ci:ro \
+          -v ${{ github.workspace }}/${{ env.RUN_CFG__SSH_KEY_NAME }}.pub:/home/test/testgres/id_ed25519_test.pub:ro \
           "${{ env.RUN_CFG__DOCKER_IMAGE_NAME }}" \
           - sleep infinity
 
         sleep 1.0
 
+        #
+        # We will COPY (not APPEND) id_ed25519_test.pub into/home/test/.ssh/authorized_keys
+        #
         docker exec -u root ${{ env.RUN_CFG__REMOTE_NAME }} sh -c "
           echo '--- INSIDE CONTAINER OS ---' && \
           cat /etc/os-release && \
           echo '---' && \
-          cp /home/test/.ssh/authorized_keys_ci /home/test/.ssh/authorized_keys && \
+          cp /home/test/testgres/id_ed25519_test.pub /home/test/.ssh/authorized_keys && \
           chown test.test /home/test/.ssh/authorized_keys && \
           chmod 600 /home/test/.ssh/authorized_keys && \
           chmod 700 /home/test/.ssh && \

From aa8a894797249d17230bf7ff1c07c2bb679dfc4b Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Sun, 5 Jul 2026 11:03:44 +0300
Subject: [PATCH 43/66] CI: [fix] test:test

---
 .github/workflows/ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index fda27fb..47a4468 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -141,7 +141,7 @@ jobs:
           cat /etc/os-release && \
           echo '---' && \
           cp /home/test/testgres/id_ed25519_test.pub /home/test/.ssh/authorized_keys && \
-          chown test.test /home/test/.ssh/authorized_keys && \
+          chown test:test /home/test/.ssh/authorized_keys && \
           chmod 600 /home/test/.ssh/authorized_keys && \
           chmod 700 /home/test/.ssh && \
           echo '--- INSIDE CONTAINER .SSH ---' && \

From 526282f85aba9f7941ab5a37ac8234be944b09fc Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Sun, 5 Jul 2026 11:28:43 +0300
Subject: [PATCH 44/66] CI: (remote2) map xxx.pub (600) to
 /home/test/.ssh/authorized_keys

---
 .github/workflows/ci.yml | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 47a4468..cc77b80 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -123,11 +123,12 @@ jobs:
       run: |
         # Generate a key without a password directly on the GitHub Actions host
         ssh-keygen -t ed25519 -N "" -f ${{ github.workspace }}/${{ env.RUN_CFG__SSH_KEY_NAME }}
+        chmod 600 ${{ github.workspace }}/${{ env.RUN_CFG__SSH_KEY_NAME }}.pub
 
     - name: Run second target host (for remote operations)
       run: |
         docker run -d -t --name ${{ env.RUN_CFG__REMOTE_NAME }} \
-          -v ${{ github.workspace }}/${{ env.RUN_CFG__SSH_KEY_NAME }}.pub:/home/test/testgres/id_ed25519_test.pub:ro \
+          -v ${{ github.workspace }}/${{ env.RUN_CFG__SSH_KEY_NAME }}.pub:/home/test/.ssh/authorized_keys:ro \
           "${{ env.RUN_CFG__DOCKER_IMAGE_NAME }}" \
           - sleep infinity
 
@@ -139,11 +140,6 @@ jobs:
         docker exec -u root ${{ env.RUN_CFG__REMOTE_NAME }} sh -c "
           echo '--- INSIDE CONTAINER OS ---' && \
           cat /etc/os-release && \
-          echo '---' && \
-          cp /home/test/testgres/id_ed25519_test.pub /home/test/.ssh/authorized_keys && \
-          chown test:test /home/test/.ssh/authorized_keys && \
-          chmod 600 /home/test/.ssh/authorized_keys && \
-          chmod 700 /home/test/.ssh && \
           echo '--- INSIDE CONTAINER .SSH ---' && \
           ls -la /home/test/.ssh/
         "

From a62c1cb67e374fa45aa492292791c00f59825e01 Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Sun, 5 Jul 2026 12:03:42 +0300
Subject: [PATCH 45/66] CI: (remote2) setup authorized_keys via conveyor

---
 .github/workflows/ci.yml | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index cc77b80..dba5789 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -123,20 +123,24 @@ jobs:
       run: |
         # Generate a key without a password directly on the GitHub Actions host
         ssh-keygen -t ed25519 -N "" -f ${{ github.workspace }}/${{ env.RUN_CFG__SSH_KEY_NAME }}
-        chmod 600 ${{ github.workspace }}/${{ env.RUN_CFG__SSH_KEY_NAME }}.pub
 
     - name: Run second target host (for remote operations)
       run: |
         docker run -d -t --name ${{ env.RUN_CFG__REMOTE_NAME }} \
-          -v ${{ github.workspace }}/${{ env.RUN_CFG__SSH_KEY_NAME }}.pub:/home/test/.ssh/authorized_keys:ro \
           "${{ env.RUN_CFG__DOCKER_IMAGE_NAME }}" \
           - sleep infinity
 
         sleep 1.0
 
         #
-        # We will COPY (not APPEND) id_ed25519_test.pub into/home/test/.ssh/authorized_keys
+        # Setup authorized_keys
         #
+        cat ${{ github.workspace }}/${{ env.RUN_CFG__SSH_KEY_NAME }}.pub | \
+        docker exec -i -u test ${{ env.RUN_CFG__REMOTE_NAME }} sh -c " \
+          cat >> /home/test/.ssh/authorized_keys && \
+          chmod 600 /home/test/.ssh/authorized_keys \
+        "
+
         docker exec -u root ${{ env.RUN_CFG__REMOTE_NAME }} sh -c "
           echo '--- INSIDE CONTAINER OS ---' && \
           cat /etc/os-release && \

From 721682e3eb116b40c4d7616191f3db3846b6f76f Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Sun, 5 Jul 2026 12:11:23 +0300
Subject: [PATCH 46/66] CI: "INSIDE CONTAINER .SSH" is corrected

---
 .github/workflows/ci.yml | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index dba5789..3f7add6 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -141,11 +141,14 @@ jobs:
           chmod 600 /home/test/.ssh/authorized_keys \
         "
 
+        #
+        # Log status
+        #
         docker exec -u root ${{ env.RUN_CFG__REMOTE_NAME }} sh -c "
           echo '--- INSIDE CONTAINER OS ---' && \
           cat /etc/os-release && \
           echo '--- INSIDE CONTAINER .SSH ---' && \
-          ls -la /home/test/.ssh/
+          ls -la /home/test/.ssh/ \
         "
 
     - name: Run Main Test Container

From e3ce285928024f705237345d59bea4e3785561cb Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Sun, 5 Jul 2026 13:12:54 +0300
Subject: [PATCH 47/66] CI: comments are corrected (altlinux)

---
 Dockerfile--altlinux_10.tmpl | 2 +-
 Dockerfile--altlinux_11.tmpl | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/Dockerfile--altlinux_10.tmpl b/Dockerfile--altlinux_10.tmpl
index 8ac79cc..f81639f 100644
--- a/Dockerfile--altlinux_10.tmpl
+++ b/Dockerfile--altlinux_10.tmpl
@@ -82,7 +82,7 @@ if [ -n \"${TEST_CFG__REMOTE_SSH_KEY:-}\" ]; then \
     ls -la /home/test/.ssh/; \
 fi; \
 ls -la ./; \
-# AUTOMATIC TRANSFER: Save all TEST_CFG__ variables to a temporary file \
+# AUTOMATIC TRANSFER: Save all TEST_CFG__xxx variables to a temporary file \
 (env | grep '^TEST_CFG__' | sed 's/^/export /' || echo '') > ./test_cfg_env.sh; \
 chown test:test ./test_cfg_env.sh; \
 cat ./test_cfg_env.sh; \
diff --git a/Dockerfile--altlinux_11.tmpl b/Dockerfile--altlinux_11.tmpl
index 703543f..debde74 100644
--- a/Dockerfile--altlinux_11.tmpl
+++ b/Dockerfile--altlinux_11.tmpl
@@ -85,7 +85,7 @@ if [ -n \"${TEST_CFG__REMOTE_SSH_KEY:-}\" ]; then \
     ls -la /home/test/.ssh/; \
 fi; \
 ls -la ./; \
-# AUTOMATIC TRANSFER: Save all TEST_CFG__ variables to a temporary file \
+# AUTOMATIC TRANSFER: Save all TEST_CFG__xxx variables to a temporary file \
 (env | grep '^TEST_CFG__' | sed 's/^/export /' || echo '') > ./test_cfg_env.sh; \
 chown test:test ./test_cfg_env.sh; \
 cat ./test_cfg_env.sh; \

From 2a0b22a124ca6d240fe40f897fe502054829772d Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Sun, 5 Jul 2026 13:29:41 +0300
Subject: [PATCH 48/66] CI: RUN_CFG__REMOTE_NAME -> RUN_CFG__MACHINE2_NAME

---
 .github/workflows/ci.yml | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 3f7add6..c9ae5ea 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -106,7 +106,7 @@ jobs:
         echo "RUN_CFG__NOW=$(date +'%Y%m%d_%H%M%S')" >> $GITHUB_ENV
         echo "RUN_CFG__LOGS_DIR=logs-${{ env.BASE_SIGN }}" >> $GITHUB_ENV
         echo "RUN_CFG__DOCKER_IMAGE_NAME=tests-${{ env.BASE_SIGN }}" >> $GITHUB_ENV
-        echo "RUN_CFG__REMOTE_NAME=remote2-${{ env.BASE_SIGN }}" >> $GITHUB_ENV
+        echo "RUN_CFG__MACHINE2_NAME=machine2-${{ env.BASE_SIGN }}" >> $GITHUB_ENV
         echo "RUN_CFG__SSH_KEY_NAME=id_ed25519-${{ env.BASE_SIGN }}" >> $GITHUB_ENV
         echo "---------- [$GITHUB_ENV]"
         cat $GITHUB_ENV
@@ -126,7 +126,7 @@ jobs:
 
     - name: Run second target host (for remote operations)
       run: |
-        docker run -d -t --name ${{ env.RUN_CFG__REMOTE_NAME }} \
+        docker run -d -t --name ${{ env.RUN_CFG__MACHINE2_NAME }} \
           "${{ env.RUN_CFG__DOCKER_IMAGE_NAME }}" \
           - sleep infinity
 
@@ -136,7 +136,7 @@ jobs:
         # Setup authorized_keys
         #
         cat ${{ github.workspace }}/${{ env.RUN_CFG__SSH_KEY_NAME }}.pub | \
-        docker exec -i -u test ${{ env.RUN_CFG__REMOTE_NAME }} sh -c " \
+        docker exec -i -u test ${{ env.RUN_CFG__MACHINE2_NAME }} sh -c " \
           cat >> /home/test/.ssh/authorized_keys && \
           chmod 600 /home/test/.ssh/authorized_keys \
         "
@@ -144,7 +144,7 @@ jobs:
         #
         # Log status
         #
-        docker exec -u root ${{ env.RUN_CFG__REMOTE_NAME }} sh -c "
+        docker exec -u root ${{ env.RUN_CFG__MACHINE2_NAME }} sh -c "
           echo '--- INSIDE CONTAINER OS ---' && \
           cat /etc/os-release && \
           echo '--- INSIDE CONTAINER .SSH ---' && \
@@ -155,12 +155,12 @@ jobs:
       run: |
         # Launch the main container, passing the private key to the .ssh folder of the test user.
         # Pass environment variables so Python tests know where to start.
-        # Link the containers using --link so the name "remote2" resolves to an IP address.
+        # Link the containers using --link so the name "machine2" resolves to an IP address.
         docker run -t \
-          --link ${{ env.RUN_CFG__REMOTE_NAME }}:${{ env.RUN_CFG__REMOTE_NAME }} \
+          --link ${{ env.RUN_CFG__MACHINE2_NAME }}:${{ env.RUN_CFG__MACHINE2_NAME }} \
           -v ${{ github.workspace }}/${{ env.RUN_CFG__LOGS_DIR }}:/home/test/testgres/logs \
           -v ${{ github.workspace }}/${{ env.RUN_CFG__SSH_KEY_NAME }}:/home/test/testgres/id_ed25519_test:ro \
-          -e TEST_CFG__REMOTE_HOST="${{ env.RUN_CFG__REMOTE_NAME }}" \
+          -e TEST_CFG__REMOTE_HOST="${{ env.RUN_CFG__MACHINE2_NAME }}" \
           -e TEST_CFG__REMOTE_PORT="22" \
           -e TEST_CFG__REMOTE_USERNAME="test" \
           -e TEST_CFG__REMOTE_SSH_KEY="/home/test/testgres/id_ed25519_test" \

From 682f750f84fc149ae46b21eec3ec9a41bdf99756 Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Sun, 5 Jul 2026 14:28:09 +0300
Subject: [PATCH 49/66] CI: docker network is used

---
 .github/workflows/ci.yml | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c9ae5ea..f821436 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -106,6 +106,7 @@ jobs:
         echo "RUN_CFG__NOW=$(date +'%Y%m%d_%H%M%S')" >> $GITHUB_ENV
         echo "RUN_CFG__LOGS_DIR=logs-${{ env.BASE_SIGN }}" >> $GITHUB_ENV
         echo "RUN_CFG__DOCKER_IMAGE_NAME=tests-${{ env.BASE_SIGN }}" >> $GITHUB_ENV
+        echo "RUN_CFG__NETWORK_NAME=network-${{ env.BASE_SIGN }}" >> $GITHUB_ENV
         echo "RUN_CFG__MACHINE2_NAME=machine2-${{ env.BASE_SIGN }}" >> $GITHUB_ENV
         echo "RUN_CFG__SSH_KEY_NAME=id_ed25519-${{ env.BASE_SIGN }}" >> $GITHUB_ENV
         echo "---------- [$GITHUB_ENV]"
@@ -124,9 +125,15 @@ jobs:
         # Generate a key without a password directly on the GitHub Actions host
         ssh-keygen -t ed25519 -N "" -f ${{ github.workspace }}/${{ env.RUN_CFG__SSH_KEY_NAME }}
 
+    - name: Setup network
+      run: |
+        docker network create ${{ env.RUN_CFG__NETWORK_NAME }}
+
     - name: Run second target host (for remote operations)
       run: |
-        docker run -d -t --name ${{ env.RUN_CFG__MACHINE2_NAME }} \
+        docker run -d -t \
+        --network ${{ env.RUN_CFG__NETWORK_NAME }} \
+        --name ${{ env.RUN_CFG__MACHINE2_NAME }} \
           "${{ env.RUN_CFG__DOCKER_IMAGE_NAME }}" \
           - sleep infinity
 
@@ -155,9 +162,8 @@ jobs:
       run: |
         # Launch the main container, passing the private key to the .ssh folder of the test user.
         # Pass environment variables so Python tests know where to start.
-        # Link the containers using --link so the name "machine2" resolves to an IP address.
         docker run -t \
-          --link ${{ env.RUN_CFG__MACHINE2_NAME }}:${{ env.RUN_CFG__MACHINE2_NAME }} \
+          --network ${{ env.RUN_CFG__NETWORK_NAME }} \
           -v ${{ github.workspace }}/${{ env.RUN_CFG__LOGS_DIR }}:/home/test/testgres/logs \
           -v ${{ github.workspace }}/${{ env.RUN_CFG__SSH_KEY_NAME }}:/home/test/testgres/id_ed25519_test:ro \
           -e TEST_CFG__REMOTE_HOST="${{ env.RUN_CFG__MACHINE2_NAME }}" \

From e9e8b4ebb1005c8c7aec0be7aca0ecea18c6d984 Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Sun, 5 Jul 2026 14:54:48 +0300
Subject: [PATCH 50/66] CI: step names are updated (machine1, machine2)

---
 .github/workflows/ci.yml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f821436..07861ac 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -129,7 +129,7 @@ jobs:
       run: |
         docker network create ${{ env.RUN_CFG__NETWORK_NAME }}
 
-    - name: Run second target host (for remote operations)
+    - name: Run machine2 (for remote operations)
       run: |
         docker run -d -t \
         --network ${{ env.RUN_CFG__NETWORK_NAME }} \
@@ -158,7 +158,7 @@ jobs:
           ls -la /home/test/.ssh/ \
         "
 
-    - name: Run Main Test Container
+    - name: Run machine1 (main test container)
       run: |
         # Launch the main container, passing the private key to the .ssh folder of the test user.
         # Pass environment variables so Python tests know where to start.

From dcd51e212bb7d08b89ec45e79e5e1e53651504fc Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Sun, 5 Jul 2026 15:22:17 +0300
Subject: [PATCH 51/66] CI: Cleanup Docker resources

---
 .github/workflows/ci.yml | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 07861ac..967c684 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -162,7 +162,8 @@ jobs:
       run: |
         # Launch the main container, passing the private key to the .ssh folder of the test user.
         # Pass environment variables so Python tests know where to start.
-        docker run -t \
+        # Added the --rm flag so that the container is automatically deleted after the tests are completed
+        docker run --rm -t \
           --network ${{ env.RUN_CFG__NETWORK_NAME }} \
           -v ${{ github.workspace }}/${{ env.RUN_CFG__LOGS_DIR }}:/home/test/testgres/logs \
           -v ${{ github.workspace }}/${{ env.RUN_CFG__SSH_KEY_NAME }}:/home/test/testgres/id_ed25519_test:ro \
@@ -178,3 +179,12 @@ jobs:
       with:
         name: testgres.os_ops--test_logs--${{ env.RUN_CFG__NOW }}-${{ env.BASE_SIGN }}-id${{ github.run_id }}
         path: "${{ env.RUN_CFG__LOGS_DIR }}/"
+
+    - name: Cleanup Docker resources
+      if: always() # Ensures that the step is executed regardless of the result of the task
+      run: |
+        echo "=== Garbage Collection ==="
+        # Force kill the background machine (the -f flag will stop it if it is running)
+        docker rm -f "${{ env.RUN_CFG__MACHINE2_NAME }}" || true
+        # Delete the network (it will be deleted successfully, since all containers in it have already been destroyed)
+        docker network rm "${{ env.RUN_CFG__NETWORK_NAME }}" || true

From 1d54b83a492ed870fd0b5cc3d0b2dd21b0cdbd25 Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Sun, 5 Jul 2026 16:04:35 +0300
Subject: [PATCH 52/66] CI: (machine2) we will use "docker container inspect"
 instead sleep 1.0

---
 .github/workflows/ci.yml | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 967c684..6cc5e24 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -137,7 +137,22 @@ jobs:
           "${{ env.RUN_CFG__DOCKER_IMAGE_NAME }}" \
           - sleep infinity
 
-        sleep 1.0
+        echo "Waiting for container ${{ env.RUN_CFG__MACHINE2_NAME }} to start ..."
+        
+        # Set the timeout using the attempt counter
+        MAX_ATTEMPTS=50
+        ATTEMPT=0
+        
+        until [ "$(docker container inspect --format '{{.State.Running}}' "${{ env.RUN_CFG__MACHINE2_NAME }}")" = "true" ]; do
+          ATTEMPT=$((ATTEMPT + 1))
+          if [ $ATTEMPT -ge $MAX_ATTEMPTS ]; then
+            echo "Error: Container did not start within the allotted time (timeout)!"
+            exit 1
+          fi
+          sleep 0.2
+        done
+        
+        echo "Container successfully launched in $((ATTEMPT * 2 / 10)) second(s)!"
 
         #
         # Setup authorized_keys

From cd36790aa616d8a031a80aa4b6ec58a96a621581 Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Sun, 5 Jul 2026 16:22:28 +0300
Subject: [PATCH 53/66] CI: lint and build-check use pip-cache

---
 .github/workflows/ci.yml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6cc5e24..1ef4f60 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -29,6 +29,7 @@ jobs:
       uses: actions/setup-python@v6
       with:
         python-version: ${{ matrix.python-version }}
+        cache: 'pip'
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
@@ -51,6 +52,7 @@ jobs:
       uses: actions/setup-python@v6
       with:
         python-version: "3.12"
+        cache: 'pip'
         
     - name: Install build tools
       run: |

From 33770decab0173f41df57beb1cec504289564de2 Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Sun, 5 Jul 2026 16:37:01 +0300
Subject: [PATCH 54/66] CI: ssh-keygen is called in quiet mode (-q)

---
 .github/workflows/ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 1ef4f60..0520ffb 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -125,7 +125,7 @@ jobs:
     - name: Generate temporary SSH Key pair for CI
       run: |
         # Generate a key without a password directly on the GitHub Actions host
-        ssh-keygen -t ed25519 -N "" -f ${{ github.workspace }}/${{ env.RUN_CFG__SSH_KEY_NAME }}
+        ssh-keygen -q -t ed25519 -N "" -f ${{ github.workspace }}/${{ env.RUN_CFG__SSH_KEY_NAME }}
 
     - name: Setup network
       run: |

From 04d1cbcaef9043b741d8299a90dd8f99b0c99513 Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Sun, 5 Jul 2026 16:42:29 +0300
Subject: [PATCH 55/66] CI: RUN_CFG__MACHINE1_NAME is added

---
 .github/workflows/ci.yml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0520ffb..6724ec4 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -109,6 +109,7 @@ jobs:
         echo "RUN_CFG__LOGS_DIR=logs-${{ env.BASE_SIGN }}" >> $GITHUB_ENV
         echo "RUN_CFG__DOCKER_IMAGE_NAME=tests-${{ env.BASE_SIGN }}" >> $GITHUB_ENV
         echo "RUN_CFG__NETWORK_NAME=network-${{ env.BASE_SIGN }}" >> $GITHUB_ENV
+        echo "RUN_CFG__MACHINE1_NAME=machine2-${{ env.BASE_SIGN }}" >> $GITHUB_ENV
         echo "RUN_CFG__MACHINE2_NAME=machine2-${{ env.BASE_SIGN }}" >> $GITHUB_ENV
         echo "RUN_CFG__SSH_KEY_NAME=id_ed25519-${{ env.BASE_SIGN }}" >> $GITHUB_ENV
         echo "---------- [$GITHUB_ENV]"
@@ -182,6 +183,7 @@ jobs:
         # Added the --rm flag so that the container is automatically deleted after the tests are completed
         docker run --rm -t \
           --network ${{ env.RUN_CFG__NETWORK_NAME }} \
+          --name ${{ env.RUN_CFG__MACHINE1_NAME }} \
           -v ${{ github.workspace }}/${{ env.RUN_CFG__LOGS_DIR }}:/home/test/testgres/logs \
           -v ${{ github.workspace }}/${{ env.RUN_CFG__SSH_KEY_NAME }}:/home/test/testgres/id_ed25519_test:ro \
           -e TEST_CFG__REMOTE_HOST="${{ env.RUN_CFG__MACHINE2_NAME }}" \

From bd891dfafb03bbb874cb61a6d5f22a339e141a03 Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Sun, 5 Jul 2026 16:43:47 +0300
Subject: [PATCH 56/66] CI: Formatting

---
 .github/workflows/ci.yml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6724ec4..f9d0f27 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -135,8 +135,8 @@ jobs:
     - name: Run machine2 (for remote operations)
       run: |
         docker run -d -t \
-        --network ${{ env.RUN_CFG__NETWORK_NAME }} \
-        --name ${{ env.RUN_CFG__MACHINE2_NAME }} \
+          --network ${{ env.RUN_CFG__NETWORK_NAME }} \
+          --name ${{ env.RUN_CFG__MACHINE2_NAME }} \
           "${{ env.RUN_CFG__DOCKER_IMAGE_NAME }}" \
           - sleep infinity
 

From 1da98f7b96381d292a67b7a100af94e30e02eb71 Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Sun, 5 Jul 2026 16:46:08 +0300
Subject: [PATCH 57/66] CI: Comment on "-" in "- sleep infinity"

---
 .github/workflows/ci.yml | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f9d0f27..d4fddf2 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -134,6 +134,9 @@ jobs:
 
     - name: Run machine2 (for remote operations)
       run: |
+        #
+        # "- sleep infinity" is a right command. Docker ignores "-" and runs "sleep infinity".
+        #
         docker run -d -t \
           --network ${{ env.RUN_CFG__NETWORK_NAME }} \
           --name ${{ env.RUN_CFG__MACHINE2_NAME }} \

From 26f778c7ecbca40f0e972a83a86191791e8ba546 Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Sun, 5 Jul 2026 16:49:51 +0300
Subject: [PATCH 58/66] CI: RUN_CFG__MACHINE1_NAME is fixed

---
 .github/workflows/ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d4fddf2..0c9d98f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -109,7 +109,7 @@ jobs:
         echo "RUN_CFG__LOGS_DIR=logs-${{ env.BASE_SIGN }}" >> $GITHUB_ENV
         echo "RUN_CFG__DOCKER_IMAGE_NAME=tests-${{ env.BASE_SIGN }}" >> $GITHUB_ENV
         echo "RUN_CFG__NETWORK_NAME=network-${{ env.BASE_SIGN }}" >> $GITHUB_ENV
-        echo "RUN_CFG__MACHINE1_NAME=machine2-${{ env.BASE_SIGN }}" >> $GITHUB_ENV
+        echo "RUN_CFG__MACHINE1_NAME=machine1-${{ env.BASE_SIGN }}" >> $GITHUB_ENV
         echo "RUN_CFG__MACHINE2_NAME=machine2-${{ env.BASE_SIGN }}" >> $GITHUB_ENV
         echo "RUN_CFG__SSH_KEY_NAME=id_ed25519-${{ env.BASE_SIGN }}" >> $GITHUB_ENV
         echo "---------- [$GITHUB_ENV]"

From 41cde6dc427b9fd65f8554a43c93cbb3fcc2bf57 Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Sun, 5 Jul 2026 18:25:42 +0300
Subject: [PATCH 59/66] CI: ENTRYPOINT is fixed (DUMMY-DUMMY-DUMMY)

---
 .github/workflows/ci.yml        |  2 +-
 Dockerfile--alpine.tmpl         | 11 ++++++++---
 Dockerfile--altlinux_10.tmpl    | 11 ++++++++---
 Dockerfile--altlinux_11.tmpl    | 11 ++++++++---
 Dockerfile--astralinux_1_7.tmpl | 11 ++++++++---
 Dockerfile--ubuntu_24_04.tmpl   | 11 ++++++++---
 6 files changed, 41 insertions(+), 16 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0c9d98f..39c5c9a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -141,7 +141,7 @@ jobs:
           --network ${{ env.RUN_CFG__NETWORK_NAME }} \
           --name ${{ env.RUN_CFG__MACHINE2_NAME }} \
           "${{ env.RUN_CFG__DOCKER_IMAGE_NAME }}" \
-          - sleep infinity
+          sleep infinity
 
         echo "Waiting for container ${{ env.RUN_CFG__MACHINE2_NAME }} to start ..."
         
diff --git a/Dockerfile--alpine.tmpl b/Dockerfile--alpine.tmpl
index ff02d36..c40299b 100644
--- a/Dockerfile--alpine.tmpl
+++ b/Dockerfile--alpine.tmpl
@@ -46,16 +46,21 @@ RUN chmod 700 /home/test/
 RUN mkdir -p /home/test/.ssh
 RUN chown -R test:test /home/test/.ssh
 
+#
+# \"$@\"
+#   - quote is important!
+#   - "DUMMY-DUMMY-DUMMY" will be ignored. Do not ask me "why?". AXEZ.
+#
 ENTRYPOINT ["sh", "-c", " \
     set -eux; \
     echo 'SYSTEM START: PREPARING SSH'; \
     /usr/sbin/sshd; \
     ls -la /home/test/.ssh/; \
-    \"$@\"; \
-"]
+    \"$@\" \
+", "DUMMY-DUMMY-DUMMY"]
 
 # Run tests by default (master machine role)
-CMD ["", "bash", "-c", " \
+CMD ["bash", "-c", " \
 set -eux; \
 echo \"HOME DIR IS [`realpath ~/`]\"; \
 echo \"WORK DIR IS [$(pwd)]\"; \
diff --git a/Dockerfile--altlinux_10.tmpl b/Dockerfile--altlinux_10.tmpl
index f81639f..3f4908e 100644
--- a/Dockerfile--altlinux_10.tmpl
+++ b/Dockerfile--altlinux_10.tmpl
@@ -50,16 +50,21 @@ RUN chown -R test:test /home/test/.ssh
 # Altlinux 10 and 11 too slowly create a new SSH connection (x6).
 #
 
+#
+# \"$@\"
+#   - quote is important!
+#   - "DUMMY-DUMMY-DUMMY" will be ignored. Do not ask me "why?". AXEZ.
+#
 ENTRYPOINT ["sh", "-c", " \
     set -eux; \
     echo 'SYSTEM START: PREPARING SSH'; \
     /usr/sbin/sshd; \
     ls -la /home/test/.ssh/; \
-    \"$@\"; \
-"]
+    \"$@\" \
+", "DUMMY-DUMMY-DUMMY"]
 
 # Run tests by default (master machine role)
-CMD ["", "bash", "-c", " \
+CMD ["bash", "-c", " \
 set -eux; \
 echo \"HOME DIR IS [`realpath ~/`]\"; \
 echo \"WORK DIR IS [$(pwd)]\"; \
diff --git a/Dockerfile--altlinux_11.tmpl b/Dockerfile--altlinux_11.tmpl
index debde74..44edfe3 100644
--- a/Dockerfile--altlinux_11.tmpl
+++ b/Dockerfile--altlinux_11.tmpl
@@ -53,16 +53,21 @@ RUN chown -R test:test /home/test/.ssh
 # Altlinux 10 and 11 too slowly create a new SSH connection (x6).
 #
 
+#
+# \"$@\"
+#   - quote is important!
+#   - "DUMMY-DUMMY-DUMMY" will be ignored. Do not ask me "why?". AXEZ.
+#
 ENTRYPOINT ["sh", "-c", " \
     set -eux; \
     echo 'SYSTEM START: PREPARING SSH'; \
     /usr/sbin/sshd; \
     ls -la /home/test/.ssh/; \
-    \"$@\"; \
-"]
+    \"$@\" \
+", "DUMMY-DUMMY-DUMMY"]
 
 # Run tests by default (master machine role)
-CMD ["", "bash", "-c", " \
+CMD ["bash", "-c", " \
 set -eux; \
 echo \"HOME DIR IS [`realpath ~/`]\"; \
 echo \"WORK DIR IS [$(pwd)]\"; \
diff --git a/Dockerfile--astralinux_1_7.tmpl b/Dockerfile--astralinux_1_7.tmpl
index b31bbec..851c9b1 100644
--- a/Dockerfile--astralinux_1_7.tmpl
+++ b/Dockerfile--astralinux_1_7.tmpl
@@ -51,16 +51,21 @@ RUN chmod 700 /home/test/
 RUN mkdir -p /home/test/.ssh
 RUN chown -R test:test /home/test/.ssh
 
+#
+# \"$@\"
+#   - quote is important!
+#   - "DUMMY-DUMMY-DUMMY" will be ignored. Do not ask me "why?". AXEZ.
+#
 ENTRYPOINT ["sh", "-c", " \
     set -eux; \
     echo 'SYSTEM START: PREPARING SSH'; \
     service ssh start; \
     ls -la /home/test/.ssh/; \
-    \"$@\"; \
-"]
+    \"$@\" \
+", "DUMMY-DUMMY-DUMMY"]
 
 # Run tests by default (master machine role)
-CMD ["", "bash", "-c", " \
+CMD ["bash", "-c", " \
 set -eux; \
 echo \"HOME DIR IS [`realpath ~/`]\"; \
 echo \"WORK DIR IS [$(pwd)]\"; \
diff --git a/Dockerfile--ubuntu_24_04.tmpl b/Dockerfile--ubuntu_24_04.tmpl
index 18f98c4..ebdfbd5 100644
--- a/Dockerfile--ubuntu_24_04.tmpl
+++ b/Dockerfile--ubuntu_24_04.tmpl
@@ -43,16 +43,21 @@ RUN chmod 700 /home/test/
 RUN mkdir -p /home/test/.ssh
 RUN chown -R test:test /home/test/.ssh
 
+#
+# \"$@\"
+#   - quote is important!
+#   - "DUMMY-DUMMY-DUMMY" will be ignored. Do not ask me "why?". AXEZ.
+#
 ENTRYPOINT ["sh", "-c", " \
     set -eux; \
     echo 'SYSTEM START: PREPARING SSH'; \
     service ssh start; \
     ls -la /home/test/.ssh/; \
-    \"$@\"; \
-"]
+    \"$@\" \
+", "DUMMY-DUMMY-DUMMY"]
 
 # Run tests by default (master machine role)
-CMD ["", "bash", "-c", " \
+CMD ["bash", "-c", " \
 set -eux; \
 echo \"HOME DIR IS [`realpath ~/`]\"; \
 echo \"WORK DIR IS [$(pwd)]\"; \

From 9b3c56f4a7648336dbfa722885b06bc458f31889 Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Sun, 5 Jul 2026 18:56:11 +0300
Subject: [PATCH 60/66] CI: Dockerfile--ubuntu_24_04 is optimized

---
 Dockerfile--ubuntu_24_04.tmpl | 36 ++++++++++++++++++++---------------
 1 file changed, 21 insertions(+), 15 deletions(-)

diff --git a/Dockerfile--ubuntu_24_04.tmpl b/Dockerfile--ubuntu_24_04.tmpl
index ebdfbd5..2a6ebb4 100644
--- a/Dockerfile--ubuntu_24_04.tmpl
+++ b/Dockerfile--ubuntu_24_04.tmpl
@@ -3,24 +3,30 @@ ARG PYTHON_VERSION=3
 # --------------------------------------------- base1
 FROM ubuntu:24.04 AS base1
 
-RUN apt update
-RUN apt install -y sudo curl ca-certificates
-RUN apt update
-RUN apt install -y openssh-server
-RUN apt install -y sshpass
-RUN apt install -y time
-RUN apt install -y netcat-traditional
+# Disable interactive apt questions so that the build doesn't hang when setting time zones
+ENV DEBIAN_FRONTEND=noninteractive
 
-# it installs "ip" utility
-RUN apt install -y iproute2
-
-RUN apt install -y git
-
-# RUN apt install -y mc
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    sudo \
+    curl \
+    ca-certificates \
+    openssh-server \
+    sshpass \
+    time \
+    netcat-traditional \
+    iproute2 \
+    git \
+    && rm -rf /var/lib/apt/lists/*
 
 # --------------------------------------------- base2_with_python-3
 FROM base1 AS base2_with_python-3
-RUN apt install -y python3 python3-dev python3-venv
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    python3 \
+    python3-dev \
+    python3-venv \
+    && rm -rf /var/lib/apt/lists/*
+
 ENV PYTHON_VERSION=3
 
 # --------------------------------------------- final
@@ -34,7 +40,7 @@ RUN useradd -m test
 # It enables execution of "sudo service ssh start" without password
 RUN echo "test ALL=(ALL:ALL) NOPASSWD:ALL" >> /etc/sudoers
 
-ADD --chown=test:test . /home/test/testgres
+COPY --chown=test:test . /home/test/testgres
 WORKDIR /home/test/testgres
 
 ENV LANG=C.UTF-8

From b2826445f6b48376957755eaca66eab23b6bb92e Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Sun, 5 Jul 2026 18:57:35 +0300
Subject: [PATCH 61/66] CI: Dockerfile--alpine uses COPY (not ADD)

---
 Dockerfile--alpine.tmpl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Dockerfile--alpine.tmpl b/Dockerfile--alpine.tmpl
index c40299b..aa764cc 100644
--- a/Dockerfile--alpine.tmpl
+++ b/Dockerfile--alpine.tmpl
@@ -33,7 +33,7 @@ RUN adduser test sudo
 EXPOSE 22
 RUN ssh-keygen -A
 
-ADD --chown=test:test . /home/test/testgres
+COPY --chown=test:test . /home/test/testgres
 WORKDIR /home/test/testgres
 
 # It allows to use sudo without password

From 9af44f614d69877f9bcdb1c082ea27e4323a739e Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Sun, 5 Jul 2026 19:12:21 +0300
Subject: [PATCH 62/66] CI: Dockerfile--ubuntu_24_04 is optimized (2)

---
 Dockerfile--ubuntu_24_04.tmpl | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/Dockerfile--ubuntu_24_04.tmpl b/Dockerfile--ubuntu_24_04.tmpl
index 2a6ebb4..1f46d01 100644
--- a/Dockerfile--ubuntu_24_04.tmpl
+++ b/Dockerfile--ubuntu_24_04.tmpl
@@ -45,9 +45,9 @@ WORKDIR /home/test/testgres
 
 ENV LANG=C.UTF-8
 
-RUN chmod 700 /home/test/
-RUN mkdir -p /home/test/.ssh
-RUN chown -R test:test /home/test/.ssh
+RUN chmod 700 /home/test/ && \
+    mkdir -p /home/test/.ssh && \
+    chown -R test:test /home/test/.ssh
 
 #
 # \"$@\"

From c0ee5e29fad5650901999fe973fb02b277e275cd Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Sun, 5 Jul 2026 19:21:14 +0300
Subject: [PATCH 63/66] CI: Dockerfile--alpine is optimized

---
 Dockerfile--alpine.tmpl | 41 +++++++++++++++++++----------------------
 1 file changed, 19 insertions(+), 22 deletions(-)

diff --git a/Dockerfile--alpine.tmpl b/Dockerfile--alpine.tmpl
index aa764cc..d8bbc73 100644
--- a/Dockerfile--alpine.tmpl
+++ b/Dockerfile--alpine.tmpl
@@ -3,32 +3,29 @@ ARG PYTHON_VERSION=3.12
 # --------------------------------------------- base1
 FROM python:${PYTHON_VERSION}-alpine AS base1
 
-RUN apk add --no-cache coreutils
+RUN apk add --no-cache \
+    coreutils \
+    bash \
+    mc \
+    procps \
+    openssh \
+    sshpass \
+    sudo \
+    git
 
 # --------------------------------------------- base2
 FROM base1 AS base2
 
-RUN apk add python3-dev build-base musl-dev linux-headers
-RUN apk add git 
+RUN apk add --no-cache \
+    python3-dev \
+    build-base\
+    musl-dev \
+    linux-headers
 
 # --------------------------------------------- final
 FROM base2 AS final
 
-RUN apk update
-RUN apk add mc
-RUN apk add bash
-
-# Full version of "ps" command
-RUN apk add --no-cache procps
-
-RUN apk add --no-cache openssh
-RUN apk add --no-cache sshpass
-RUN apk add --no-cache sudo
-
-RUN adduser -D test
-
-RUN addgroup -S sudo
-RUN adduser test sudo
+RUN adduser -D test && addgroup -S sudo && adduser test sudo
 
 EXPOSE 22
 RUN ssh-keygen -A
@@ -40,11 +37,11 @@ WORKDIR /home/test/testgres
 RUN echo "test ALL=(ALL:ALL) NOPASSWD:ALL" >> /etc/sudoers
 
 # THIS CMD IS NEEDED TO CONNECT THROUGH SSH WITHOUT PASSWORD
-RUN sh -c "echo "test:*" | chpasswd -e"
+RUN echo "test:*" | chpasswd -e
 
-RUN chmod 700 /home/test/
-RUN mkdir -p /home/test/.ssh
-RUN chown -R test:test /home/test/.ssh
+RUN chmod 700 /home/test/ && \
+    mkdir -p /home/test/.ssh && \
+    chown -R test:test /home/test/.ssh
 
 #
 # \"$@\"

From 5eef0cc94e1ac2527d0414a8b21848f7cf1ca054 Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Sun, 5 Jul 2026 19:33:17 +0300
Subject: [PATCH 64/66] CI: Dockerfile--astralinux_1_7 is optimized

---
 Dockerfile--astralinux_1_7.tmpl | 46 +++++++++++++++++----------------
 1 file changed, 24 insertions(+), 22 deletions(-)

diff --git a/Dockerfile--astralinux_1_7.tmpl b/Dockerfile--astralinux_1_7.tmpl
index 851c9b1..0992a3e 100644
--- a/Dockerfile--astralinux_1_7.tmpl
+++ b/Dockerfile--astralinux_1_7.tmpl
@@ -3,25 +3,27 @@ ARG PYTHON_VERSION=3
 # --------------------------------------------- base1
 FROM packpack/packpack:astra-1.7 AS base1
 
-RUN apt update
-RUN apt install -y sudo curl ca-certificates
-RUN apt update
-RUN apt install -y openssh-server
-RUN apt install -y sshpass
-# RUN apt install -y time
-# RUN apt install -y netcat-traditional
-
-# it installs "ip" utility
-RUN apt install -y iproute2
-
-RUN apt install -y git
-
-# RUN apt install -y mc
-# RUN apt install -y nano
+ENV DEBIAN_FRONTEND=noninteractive
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    sudo \
+    curl \
+    ca-certificates \
+    openssh-server \
+    sshpass \
+    iproute2 \
+    git \
+    && rm -rf /var/lib/apt/lists/*
 
 # --------------------------------------------- base2_with_python-3
 FROM base1 AS base2_with_python-3
-RUN apt install -y python3 python3-dev python3-venv
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    python3 \
+    python3-dev \
+    python3-venv \
+    && rm -rf /var/lib/apt/lists/*
+
 ENV PYTHON_VERSION=3
 
 # --------------------------------------------- final
@@ -39,17 +41,17 @@ RUN useradd -m test
 RUN echo "test ALL=(ALL:ALL) NOPASSWD:ALL" >> /etc/sudoers
 
 # THIS CMD IS NEEDED TO CONNECT THROUGH SSH WITHOUT PASSWORD
-RUN sh -c "echo "test:*" | chpasswd -e"
-RUN sed -i 's/UsePAM yes/UsePAM no/' /etc/ssh/sshd_config
+RUN echo "test:*" | chpasswd -e && \
+    sed -i 's/UsePAM yes/UsePAM no/' /etc/ssh/sshd_config
 
-ADD --chown=test:test . /home/test/testgres
+COPY --chown=test:test . /home/test/testgres
 WORKDIR /home/test/testgres
 
 ENV LANG=C.UTF-8
 
-RUN chmod 700 /home/test/
-RUN mkdir -p /home/test/.ssh
-RUN chown -R test:test /home/test/.ssh
+RUN chmod 700 /home/test/ && \
+    mkdir -p /home/test/.ssh && \
+    chown -R test:test /home/test/.ssh
 
 #
 # \"$@\"

From ab780c5454b3ab7f77de0c00aebb3394f930d975 Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Sun, 5 Jul 2026 19:57:09 +0300
Subject: [PATCH 65/66] CI: Dockerfile--altlinux_1x are optimized

---
 Dockerfile--altlinux_10.tmpl | 60 +++++++++++++++++-----------------
 Dockerfile--altlinux_11.tmpl | 63 ++++++++++++++++++------------------
 2 files changed, 62 insertions(+), 61 deletions(-)

diff --git a/Dockerfile--altlinux_10.tmpl b/Dockerfile--altlinux_10.tmpl
index 3f4908e..2e58975 100644
--- a/Dockerfile--altlinux_10.tmpl
+++ b/Dockerfile--altlinux_10.tmpl
@@ -3,52 +3,54 @@ ARG PYTHON_VERSION=3
 # --------------------------------------------- base1
 FROM alt:p10 AS base1
 
-RUN apt-get update
-RUN apt-get install -y sudo curl ca-certificates
-RUN apt-get update
-RUN apt-get install -y openssh-server openssh-clients
-RUN apt-get install -y sshpass
-RUN apt-get install -y time
-RUN apt-get install -y su
-
-# RUN apt-get install -y mc
-
-EXPOSE 22
-RUN ssh-keygen -A
-
-# --------------------------------------------- dev_tools
-FROM base1 AS base1_with_dev_tools
-
-RUN apt-get update
-RUN apt-get install -y git
+RUN apt-get update && apt-get install -y \
+    sudo \
+    curl \
+    ca-certificates \
+    openssh-server \
+    openssh-clients \
+    sshpass \
+    time \
+    su \
+    git \
+    && apt-get clean
 
 # --------------------------------------------- base2_with_python-3
-FROM base1_with_dev_tools AS base2_with_python-3
-RUN apt-get install -y python3
-RUN apt-get install -y python3-dev
+FROM base1 AS base2_with_python-3
+
+RUN apt-get update && apt-get install -y \
+    python3 \
+    python3-dev \
+    && apt-get clean
 
 ENV PYTHON_VERSION=3
 
 # --------------------------------------------- final
 FROM base2_with_python-${PYTHON_VERSION} AS final
 
+EXPOSE 22
+RUN ssh-keygen -A
+
 RUN adduser test -G wheel
 
 # It enables execution of "sudo service ssh start" without password
 RUN echo "test ALL=(ALL:ALL) NOPASSWD: ALL" >> /etc/sudoers
 
-ADD --chown=test:test . /home/test/testgres
+#
+# Altlinux 10 and 11 too slowly create a new SSH connection (x6).
+#
+# AI: SPEED UP SSH 6 TIMES (REMOVE REVERSE DNS LOOKUP TIMEOUTS)
+#
+RUN echo "UseDNS no" >> /etc/openssh/sshd_config
+
+COPY --chown=test:test . /home/test/testgres
 WORKDIR /home/test/testgres
 
 ENV LANG=C.UTF-8
 
-RUN chmod 700 /home/test/
-RUN mkdir -p /home/test/.ssh
-RUN chown -R test:test /home/test/.ssh
-
-#
-# Altlinux 10 and 11 too slowly create a new SSH connection (x6).
-#
+RUN chmod 700 /home/test/ && \
+    mkdir -p /home/test/.ssh && \
+    chown -R test:test /home/test/.ssh
 
 #
 # \"$@\"
diff --git a/Dockerfile--altlinux_11.tmpl b/Dockerfile--altlinux_11.tmpl
index 44edfe3..f63a277 100644
--- a/Dockerfile--altlinux_11.tmpl
+++ b/Dockerfile--altlinux_11.tmpl
@@ -3,55 +3,54 @@ ARG PYTHON_VERSION=3
 # --------------------------------------------- base1
 FROM alt:p11 AS base1
 
-RUN apt-get update
-RUN apt-get install -y sudo curl ca-certificates
-RUN apt-get update
-RUN apt-get install -y openssh-server openssh-clients
-RUN apt-get install -y sshpass
-RUN apt-get install -y time
-RUN apt-get install -y su
-
-# pgrep (for testgres.os_ops)
-RUN apt-get install -y procps
-
-# RUN apt-get install -y mc
-
-EXPOSE 22
-RUN ssh-keygen -A
-
-# --------------------------------------------- dev_tools
-FROM base1 AS base1_with_dev_tools
-
-RUN apt-get update
-RUN apt-get install -y git
+RUN apt-get update && apt-get install -y \
+    sudo \
+    curl \
+    ca-certificates \
+    openssh-server \
+    openssh-clients \
+    sshpass \
+    time \
+    su \
+    git \
+    && apt-get clean
 
 # --------------------------------------------- base2_with_python-3
-FROM base1_with_dev_tools AS base2_with_python-3
-RUN apt-get install -y python3
-RUN apt-get install -y python3-dev
+FROM base1 AS base2_with_python-3
+
+RUN apt-get update && apt-get install -y \
+    python3 \
+    python3-dev \
+    && apt-get clean
 
 ENV PYTHON_VERSION=3
 
 # --------------------------------------------- final
 FROM base2_with_python-${PYTHON_VERSION} AS final
 
+EXPOSE 22
+RUN ssh-keygen -A
+
 RUN adduser test -G wheel
 
 # It enables execution of "sudo service ssh start" without password
 RUN echo "test ALL=(ALL:ALL) NOPASSWD: ALL" >> /etc/sudoers
 
-ADD --chown=test:test . /home/test/testgres
+#
+# Altlinux 10 and 11 too slowly create a new SSH connection (x6).
+#
+# AI: SPEED UP SSH 6 TIMES (REMOVE REVERSE DNS LOOKUP TIMEOUTS)
+#
+RUN echo "UseDNS no" >> /etc/openssh/sshd_config
+
+COPY --chown=test:test . /home/test/testgres
 WORKDIR /home/test/testgres
 
 ENV LANG=C.UTF-8
 
-RUN chmod 700 /home/test/
-RUN mkdir -p /home/test/.ssh
-RUN chown -R test:test /home/test/.ssh
-
-#
-# Altlinux 10 and 11 too slowly create a new SSH connection (x6).
-#
+RUN chmod 700 /home/test/ && \
+    mkdir -p /home/test/.ssh && \
+    chown -R test:test /home/test/.ssh
 
 #
 # \"$@\"

From d264a26a4647bcf54b41bab94ec0279d08ac4187 Mon Sep 17 00:00:00 2001
From: "d.kovalenko" <dmitry.lipetsk@gmail.com>
Date: Sun, 5 Jul 2026 20:13:52 +0300
Subject: [PATCH 66/66] CI: Dockerfile--altlinux_11 is fixed (procps)

---
 Dockerfile--altlinux_11.tmpl | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Dockerfile--altlinux_11.tmpl b/Dockerfile--altlinux_11.tmpl
index f63a277..b91bca7 100644
--- a/Dockerfile--altlinux_11.tmpl
+++ b/Dockerfile--altlinux_11.tmpl
@@ -13,6 +13,7 @@ RUN apt-get update && apt-get install -y \
     time \
     su \
     git \
+    procps \
     && apt-get clean
 
 # --------------------------------------------- base2_with_python-3