docker-compose.yml

# =============================================================================
# OCSASim Development Stack
#
# First-time setup (and any time OSH source/branches change):
#   docker compose --profile build build osh-builder    # ~5–10 min, gradle build
#
# Day-to-day:
#   docker compose up -d --build sim osh-node-1         # bring up sim + node 1
#   docker compose logs -f sim                          # tail the sim's output
#   docker compose down                                 # stop containers
#   docker compose down -v                              # also drop the H2 db volume
#
# Other shapes:
#   docker compose up -d osh-node-1 osh-node-2          # two nodes, no sim
#   docker compose --profile scale up -d --scale osh-node=4
#
# The osh-builder service is profile=build so it never runs as a daemon —
# `docker compose up` ignores it. It exists only to build & tag the local
# image ocsasim/osh-builder:latest, which the osh-node Dockerfile copies from.
# =============================================================================

services:

  # ── Build-only image: gradle build of OSH (slow, run on demand) ───────────
  osh-builder:
    build:
      context: ./docker/osh-builder
      dockerfile: Dockerfile
    image: ocsasim/osh-builder:latest
    profiles: [build]    # excluded from `docker compose up`
    # No ports / volumes / networks — this image is never run, only consumed
    # by `COPY --from=ocsasim/osh-builder:latest` in docker/osh-node/Dockerfile.

  # ── OSH Node 1 (fixed ports for primary testing) ──────────────────────────
  # Host ports deliberately offset from OSH's defaults (8282/1883/8181) so a
  # locally-installed OSH on the host doesn't fight this container for the
  # well-known ports. Inside the container the standard ports are unchanged,
  # so the sim service connects to "osh-node-1:8282" / ":1883" as usual.
  osh-node-1:
    build:
      context: ./docker/osh-node
      dockerfile: Dockerfile
    container_name: osh-node-1
    ports:
      - "18282:8282"   # HTTP API (Connected Systems)
      - "11883:1883"   # MQTT broker (embedded HiveMQ)
      - "18181:8181"   # Admin UI (optional)
    volumes:
      - osh-node-1-data:/opt/osh-node/db
    environment:
      - OSH_NODE_NAME=osh-node-1
      - JAVA_OPTS=-Xmx512m
    networks:
      - osh-net
    healthcheck:
      test: ["CMD", "wget", "-q", "--spider", "http://localhost:8282/sensorhub/api/systems"]
      interval: 10s
      timeout: 5s
      start_period: 30s
      retries: 5

  # ── OSH Node 2 (offset ports) ────────────────────────────────────────────
  osh-node-2:
    build:
      context: ./docker/osh-node
      dockerfile: Dockerfile
    container_name: osh-node-2
    ports:
      - "8382:8282"   # HTTP API on host port 8382
      - "1984:1883"   # MQTT on host port 1984
      - "8281:8181"   # Admin UI on host port 8281
    volumes:
      - osh-node-2-data:/opt/osh-node/db
    environment:
      - OSH_NODE_NAME=osh-node-2
      - JAVA_OPTS=-Xmx512m
    networks:
      - osh-net
    healthcheck:
      test: ["CMD", "wget", "-q", "--spider", "http://localhost:8282/sensorhub/api/systems"]
      interval: 10s
      timeout: 5s
      start_period: 30s
      retries: 5

  # ── Scalable OSH Nodes (use --scale osh-node=N) ──────────────────────────
  # Ports are NOT fixed — use `docker compose port osh-node <N> 8282` to find them.
  # Useful for load/multi-node federation tests.
  osh-node:
    build:
      context: ./docker/osh-node
      dockerfile: Dockerfile
    ports:
      - "8282"    # random host port → container 8282
      - "1883"    # random host port → container 1883
    volumes:
      - osh-node-shared-data:/opt/osh-node/db
    environment:
      - JAVA_OPTS=-Xmx512m
    networks:
      - osh-net
    profiles:
      - scale     # only starts with: docker compose --profile scale up --scale osh-node=N
    healthcheck:
      test: ["CMD", "wget", "-q", "--spider", "http://localhost:8282/sensorhub/api/systems"]
      interval: 10s
      timeout: 5s
      start_period: 30s
      retries: 5

  # ── OCSASim sim runner ────────────────────────────────────────────────────
  # Connects to osh-node-1 by service name. Override the mounted config to
  # point at a different node or change which sims run.
  sim:
    build:
      context: .
      dockerfile: docker/sim/Dockerfile
    container_name: ocsasim-sim
    depends_on:
      osh-node-1:
        condition: service_healthy
    volumes:
      - ./examples/sim_config.docker.json:/config/sim_config.json:ro
    networks:
      - osh-net

networks:
  osh-net:
    driver: bridge

volumes:
  osh-node-1-data:
  osh-node-2-data:
  osh-node-shared-data: