docker-compose.read-only.yml

services:
  read-only-web:
    build:
      dockerfile: Dockerfile
      ## Old docker-compose asked for context but this was still insufficient
      ## since it could then "link" the built image here to be used for the worker
      # context: .
    image: datalad-registry
    depends_on:
      read-only-db:
        condition: service_healthy
    ports:
      - "${READ_ONLY_WEB_PUBLISH_PORT}:5000"
    environment:
      FLASK_APP: "datalad_registry:create_app"

      DATALAD_REGISTRY_OPERATION_MODE: "READ_ONLY"
      DATALAD_REGISTRY_INSTANCE_PATH: /app/instance

      # db service access info
      SQLALCHEMY_DATABASE_URI: "${SQLALCHEMY_DATABASE_URI}"
    command: [ "bash", "-c", "flask init-db && flask run --host=0.0.0.0" ]
    volumes:
      - ${WEB_PATH_AT_HOST}/instance:/app/instance

  read-only-db:
    image: docker.io/postgres:15
    environment:
      POSTGRES_DB: "${POSTGRES_DB}"
      POSTGRES_USER: "${POSTGRES_USER}"
      POSTGRES_PASSWORD: "${POSTGRES_PASSWORD}"
      POSTGRES_INITDB_ARGS: --encoding utf8 --locale C

    # Enable command below to run the container without starting PostgreSQL
#    command: ["tail", "-f", "/dev/null"]

    userns_mode: "keep-id"  # This has an effect only after podman-compose 1.0.3 possibly
      # See https://github.com/containers/podman-compose/issues/166
      # for details.
      # For podman-compose 1.0.3 or earlier, use
      # `PODMAN_USERNS=keep-id podman-compose up`

    volumes:
      - ${DB_PATH_AT_HOST}/data:/var/lib/postgresql/data
    healthcheck:
      test: pg_isready -U ${POSTGRES_USER} -d ${POSTGRES_DB}
      interval: 30s
      timeout: 30s
      retries: 3
      start_period: 1m