feat: switch base container to Ubuntu 26.04

[Ron (rjaegers)]

🚀 Hey, I have created a Pull Request

Description of changes

This pull request updates the development container configurations for C++, Rust, and base images to use newer Ubuntu and toolchain versions, modernizes package versions, and improves locale and compiler setup. These changes ensure compatibility with the latest toolchains and enhance the development environment's consistency across languages.

Base image and locale improvements:

• Updated the base image in .devcontainer/base/Dockerfile from Ubuntu 24.04 to 26.04, added locales package, generated the C.UTF-8 locale, and set LANG to C.UTF-8 for better locale handling. [1] [2] [3] [4]
• Modernized core packages in .devcontainer/base/apt-requirements.json, updating versions for tools like git, bash-completion, and adding locales.

C++ toolchain and package updates:

• Upgraded GCC/G++ from version 14 to 15 in .devcontainer/cpp/Dockerfile and .devcontainer/cpp/apt-requirements-base.json, and updated related tool alternatives. [1] [2]
• Updated ARM GNU Toolchain to version 15.2 and corresponding SHA256 checksums.
• Updated Clang/LLVM packages to official Ubuntu 26.04 versions in .devcontainer/cpp/apt-requirements-clang.json and commented out a custom LLVM repo line. [1] [2]

Rust toolchain and package updates:

• Updated Rust toolchain to 1.94.1 and cargo-binstall to 1.17.9 in .devcontainer/rust/Dockerfile.
• Added g++-15 to Rust devcontainer requirements and updated rustup version.
• Ensured C/C++ compiler alternatives point to GCC/G++ 15 in the Rust devcontainer.

Other changes:

• Removed the privileged flag from .devcontainer/rust/devcontainer.json to reduce container permissions.
• Minor code change in asan.cpp to use a pointer for out-of-bounds access, likely for sanitizer testing.

✔️ Checklist

• I have followed the contribution guidelines for this repository
• I have added tests for new behavior, and have not broken any existing tests
• I have added or updated relevant documentation
• I have verified that all added components are accounted for in the SBOM

[github-actions]

✅⚠️MegaLinter analysis: Success with warnings

Descriptor	Linter	Files	Fixed	Errors	Warnings	Elapsed time
✅ ACTION	actionlint	23		0	0	0.26s
✅ DOCKERFILE	hadolint	3		0	0	0.25s
✅ JSON	npm-package-json-lint	yes		no	no	0.51s
✅ JSON	prettier	21	3	0	0	0.67s
✅ JSON	v8r	21		0	0	10.72s
✅ MARKDOWN	markdownlint	12	0	0	0	1.19s
✅ MARKDOWN	markdown-table-formatter	12	0	0	0	0.33s
✅ REPOSITORY	checkov	yes		no	no	25.58s
✅ REPOSITORY	gitleaks	yes		no	no	0.92s
✅ REPOSITORY	git_diff	yes		no	no	0.02s
✅ REPOSITORY	grype	yes		no	no	45.9s
✅ REPOSITORY	secretlint	yes		no	no	2.08s
✅ REPOSITORY	syft	yes		no	no	2.5s
✅ REPOSITORY	trivy	yes		no	no	14.52s
✅ REPOSITORY	trivy-sbom	yes		no	no	0.4s
✅ REPOSITORY	trufflehog	yes		no	no	6.05s
⚠️ SPELL	lychee	83		1	0	23.17s
✅ YAML	prettier	31	0	0	0	1.2s
✅ YAML	v8r	31		0	0	13.15s
✅ YAML	yamllint	31		0	0	1.38s

Detailed Issues

⚠️ SPELL / lychee - 1 error

[IGNORED] docker://pandoc/extra:3.9.0.0-ubuntu@sha256:72afa9c8d3300e5f10c9c4330e101725687f2179bffd912fb859c6d2ae85de62 | Unsupported: Error creating request client: builder error for url (docker://pandoc/extra:3.9.0.0-ubuntu@sha256:72afa9c8d3300e5f10c9c4330e101725687f2179bffd912fb859c6d2ae85de62)
[403] https://developer.arm.com/downloads/-/arm-gnu-toolchain-downloads | Network error: Forbidden
[IGNORED] https://vscode.dev/redirect?url=vscode://ms-vscode-remote.remote-containers/cloneInVolume?url=https://github.com/philips-software/amp-devcontainer | Unsupported: Error creating request client: builder error for url (vscode://ms-vscode-remote.remote-containers/cloneInVolume?url=https://github.com/philips-software/amp-devcontainer)
📝 Summary
---------------------
🔍 Total..........126
✅ Successful.....123
⏳ Timeouts.........0
🔀 Redirected.......0
👻 Excluded.........0
❓ Unknown..........0
🚫 Errors...........1

Errors in .github/TOOL_VERSION_ISSUE_TEMPLATE.md
[403] https://developer.arm.com/downloads/-/arm-gnu-toolchain-downloads | Network error: Forbidden

See detailed reports in MegaLinter artifacts

You could have the same capabilities but better runtime performances if you use a MegaLinter flavor:

• oxsecurity/megalinter/flavors/salesforce@v9.4.0 (58 linters)
• oxsecurity/megalinter/flavors/javascript@v9.4.0 (61 linters)

Your project could benefit from a custom flavor, which would allow you to run only the linters you need, and thus improve runtime performances. (Skip this info by defining FLAVOR_SUGGESTIONS: false)

• Documentation: Custom Flavors
• Command: npx mega-linter-runner@9.4.0 --custom-flavor-setup --custom-flavor-linters ACTION_ACTIONLINT,DOCKERFILE_HADOLINT,JSON_V8R,JSON_PRETTIER,JSON_NPM_PACKAGE_JSON_LINT,MARKDOWN_MARKDOWNLINT,MARKDOWN_MARKDOWN_TABLE_FORMATTER,REPOSITORY_CHECKOV,REPOSITORY_GIT_DIFF,REPOSITORY_GITLEAKS,REPOSITORY_GRYPE,REPOSITORY_SECRETLINT,REPOSITORY_SYFT,REPOSITORY_TRIVY,REPOSITORY_TRIVY_SBOM,REPOSITORY_TRUFFLEHOG,SPELL_LYCHEE,YAML_PRETTIER,YAML_YAMLLINT,YAML_V8R

Show us your support by starring ⭐ the repository

[github-actions]

📦 Container Size Analysis

Note

Comparing ghcr.io/philips-software/amp-devcontainer-base:edge ➔ ghcr.io/philips-software/amp-devcontainer-base:pr-1227

📈 Size Comparison Table

OS/Platform	Previous	Current	Change	Trend
linux/amd64	145.23 MB	72.35 MB	72.88 MB (-50.18%)	🔽
linux/arm64	137.54 MB	70.68 MB	66.86 MB (-48.61%)	🔽

[github-actions]

Test Results

 13 files  ±0   13 suites  ±0   18m 51s ⏱️ +32s
 33 tests ±0   33 ✅ ±0  0 💤 ±0  0 ❌ ±0 
137 runs  ±0  137 ✅ ±0  0 💤 ±0  0 ❌ ±0 

Results for commit da333af. ± Comparison against base commit deacab1.

♻️ This comment has been updated with latest results.

[github-actions]

📦 Container Size Analysis

Note

Comparing ghcr.io/philips-software/amp-devcontainer-rust:edge ➔ ghcr.io/philips-software/amp-devcontainer-rust:pr-1227

📈 Size Comparison Table

OS/Platform	Previous	Current	Change	Trend
linux/amd64	455.72 MB	469.23 MB	+13.51 MB (+2.96%)	🔼
linux/arm64	408.89 MB	420.46 MB	+11.56 MB (+2.83%)	🔼

[github-actions]

📦 Container Size Analysis

Note

Comparing ghcr.io/philips-software/amp-devcontainer-cpp:edge ➔ ghcr.io/philips-software/amp-devcontainer-cpp:pr-1227

📈 Size Comparison Table

OS/Platform	Previous	Current	Change	Trend
linux/amd64	544.88 MB	545.43 MB	+547.99 kB (+0.1%)	🔼
linux/arm64	526.43 MB	524.78 MB	1.65 MB (-0.31%)	🔽

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud