docker-compose.yml

services:
  registry-1:
    build:
      context: .
      dockerfile: Dockerfile
    depends_on:
      scylla:
        condition: service_healthy
    environment:
      HOST: 0.0.0.0
      PORT: 8080
      SCYLLA_CONTACT_POINTS: scylla
      SCYLLA_LOCAL_DC: datacenter1
      SCYLLA_KEYSPACE: nmos_registry
      SCYLLA_REPLICATION_FACTOR: 1
      HEARTBEAT_GC_INTERVAL_SECONDS: ${HEARTBEAT_GC_INTERVAL_SECONDS:-12}
      # Must be reachable from clients outside Docker.
      # Set EXTERNAL_HOST when running `docker compose`, e.g. EXTERNAL_HOST=192.168.1.10
      PUBLIC_WS_BASE: ws://${EXTERNAL_HOST:-127.0.0.1}:8080
    ports:
      - "8080:8080"

  registry-2:
    build:
      context: .
      dockerfile: Dockerfile
    depends_on:
      scylla:
        condition: service_healthy
    environment:
      HOST: 0.0.0.0
      PORT: 8080
      SCYLLA_CONTACT_POINTS: scylla
      SCYLLA_LOCAL_DC: datacenter1
      SCYLLA_KEYSPACE: nmos_registry
      SCYLLA_REPLICATION_FACTOR: 1
      HEARTBEAT_GC_INTERVAL_SECONDS: ${HEARTBEAT_GC_INTERVAL_SECONDS:-12}
      # Externally this service is published on 8081 (to container :8080).
      PUBLIC_WS_BASE: ws://${EXTERNAL_HOST:-127.0.0.1}:8081
    ports:
      - "8081:8080"

  scylla:
    image: scylladb/scylla:6.2
    command: --smp 1 --memory 750M --overprovisioned 1 --api-address 0.0.0.0
    healthcheck:
      test: ["CMD-SHELL", "nodetool status >/dev/null 2>&1 && nodetool status | grep -q '^UN'"]
      interval: 10s
      timeout: 5s
      retries: 30
      start_period: 40s
    ports:
      - "9042:9042"
    volumes:
      - scylla-data:/var/lib/scylla

volumes:
  scylla-data: {}