version: "3.7"
services:
  chat:
    deploy:
      placement:
        constraints: [node.labels.com.sigyl.git-stack == yes]
      replicas: 0 # will scale after mongo initated
      restart_policy:
        condition: any
    image: rocketchat/rocket.chat:3.0.7
    networks:
      - appnet
      - externalnet
    environment:
      - MONGO_OPLOG_URL=mongodb://chat-mongo:27017/local
      - ROOT_URL=https://${GIT_DOMAIN}/chat
      - PORT=3000
      - MONGO_URL=mongodb://chat-mongo:27017/rocketchat
      - ADMIN_USERNAME=${CHAT_ADMIN_NAME}
      - ADMIN_PASS=${CHAT_ADMIN_PASSWORD}
      - ADMIN_EMAIL=${CHAT_ADMIN_EMAIL}
    volumes:
      - chat-uploads:/app/uploads
  chat-mongo:
    deploy:
      placement:
        constraints: [node.labels.com.sigyl.git-stack-data == yes]
      replicas: 1
      restart_policy:
        condition: any
    image: mongo:4.4
    networks:
      - appnet
    environment:
      - MONGO_DATA_DIR=/data/db
      - MONGO_LOG_DIR=/dev/null
    volumes:
      - mongo-chat:/data/db
    command: mongod --smallfiles --replSet rs0 --oplogSize 128
volumes:
  mongo-chat:
  chat-uploads:

networks:
  appnet:
    driver: overlay
    #external: true
  externalnet:
    driver: overlay
    external: true