docker-compose.yml

services:
  relational_db:
    image: postgres:15.2-alpine
    command: -c 'max_connections=250'
    restart: always
    environment:
      - POSTGRES_USER=${POSTGRES_USER:-postgres}
      - POSTGRES_PASSWORD=${POSTGRES_PASSWORD:-password}
    ports:
      - "5432:5432"
    volumes:
      - db_volume:/var/lib/postgresql/data

  # This container name cannot have an underscore in it due to Vespa expectations of the URL
  index:
    image: vespaengine/vespa:8.277.17
    restart: always
    ports:
      - "19071:19071"
      - "8081:8081"
    volumes:
      - vespa_volume:/opt/vespa/var
    logging:
      driver: json-file
      options:
        max-size: "50m"
        max-file: "6"

  cache:
    image: redis:7.4-alpine
    restart: always
    ports:
      - "6379:6379"
    # docker silently mounts /data even without an explicit volume mount, which enables
    # persistence. explicitly setting save and appendonly forces ephemeral behavior.
    command: redis-server --save "" --appendonly no

volumes:
  db_volume:
  vespa_volume: