# Standalone Apache Jena Fuseki for RDF/Knowledge Graph storage
services:
  fuseki:
    image: stain/jena-fuseki:5.0.0
    container_name: fuseki-standalone
    hostname: fuseki
    ports:
      - "3030:3030"
    environment:
      # Admin credentials
      - ADMIN_PASSWORD=admin
      # JVM memory settings - adjust based on your system
      - JVM_ARGS=-Xmx4g -Xms2g
      # Fuseki configuration
      - FUSEKI_BASE=/fuseki
    volumes:
      # Mount directory for persistent storage (configurable via .env)
      - ${DOCKER_VOLUMES_PATH:-./docker-volumes}/fuseki:/fuseki
    networks:
      - fuseki-net
    # Create openmetadata dataset on startup
    entrypoint: /bin/sh -c "mkdir -p /fuseki/databases/openmetadata && exec /docker-entrypoint.sh /jena-fuseki/fuseki-server --update --loc=/fuseki/databases/openmetadata /openmetadata"
    healthcheck:
      test: ["CMD", "wget", "-q", "--spider", "http://localhost:3030/$/ping"]
      interval: 15s
      timeout: 10s
      retries: 5
      start_period: 30s
    deploy:
      resources:
        limits:
          memory: 4G
        reservations:
          memory: 2G

networks:
  fuseki-net:
    driver: bridge

# Usage:
# 1. Create the volume directory: mkdir -p fuseki-volume
# 2. Start: docker-compose -f docker-compose-fuseki-standalone.yml up -d
# 3. Access Fuseki UI: http://localhost:3030
# 4. Login: admin/admin
# 5. SPARQL endpoint: http://localhost:3030/openmetadata/sparql