services:
  plausible_db:
    # Plausible v2.1.1 was tested against PostgreSQL versions 15 and 16
    # https://github.com/plausible/analytics/blob/v2.1.1/.github/workflows/elixir.yml#L21-L32
    image: postgres:16-alpine
    restart: always
    volumes:
      - db-data-v16:/var/lib/postgresql/data
    environment:
      - POSTGRES_PASSWORD=postgres

  plausible_events_db:
    image: clickhouse/clickhouse-server:24.3.3.102-alpine
    restart: always
    volumes:
      - event-data:/var/lib/clickhouse
      - event-logs:/var/log/clickhouse-server
      - ./clickhouse/clickhouse-config.xml:/etc/clickhouse-server/config.d/logging.xml:ro
      - ./clickhouse/clickhouse-user-config.xml:/etc/clickhouse-server/users.d/logging.xml:ro
    ulimits:
      nofile:
        soft: 262144
        hard: 262144

  plausible:
    image: ghcr.io/plausible/community-edition:v2.1.1
    restart: always
    command: sh -c "sleep 10 && /entrypoint.sh db createdb && /entrypoint.sh db migrate && /entrypoint.sh run"
    depends_on:
      - plausible_db
      - plausible_events_db
    ports:
      - 127.0.0.1:8000:8000
    env_file:
      - plausible-conf.env

volumes:
  # NOTE: When it comes time to upgrade Postgres, you should:
  #   1. Manually export the database with `pg_dumpall` (via `docker exec`).
  #   2. Change the version number of this volume, to create a fresh data directory.
  #   3. Upgrade the Postgres version, and don't let Plausible itself run yet (so it doesn't init an empty DB).
  #   4. Import the database with `psql` (via `docker exec`).
  #   5. (Optional) Remove the previous volume with `docker volume rm db-data-vXX`.
  db-data-v16:
    driver: local
  event-data:
    driver: local
  event-logs:
    driver: local