docker-compose.yml

version: '3.3'
services:

  haproxy:
    image: haproxy:alpine
    ports:
        - "5000:5000"
        - "5001:5001"
    secrets: 
      - haproxy_cfg
    command:
      - haproxy
      - -f 
      - /run/secrets/haproxy_cfg
  
  etcdnode1:
    image: quay.io/coreos/etcd:v3.1.2
    volumes:
      - etcd_data:/etcd_data
    entrypoint: etcd
    command:
      - -name
      - etcdnode1
      - --data-dir
      - /etcd_data
      - -advertise-client-urls
      - http://etcdnode1:2379
      - -listen-client-urls
      - http://0.0.0.0:2379
      - -initial-advertise-peer-urls
      - http://etcdnode1:2380
      - -listen-peer-urls
      - http://0.0.0.0:2380
      - -initial-cluster
      - etcdnode1=http://etcdnode1:2380

  dbnode1:
    image: seocahill/patroni:1.2.5
    volumes:
        - db-1-data:/data
        - ./patroni.yml:/patroni.yml
        - ./config/wal-e:/etc/wal-e.d/env
    env_file:
      - db-1.env
    deploy:
      placement:
        constraints:
          - node.role == manager
    entrypoint: patroni
    command: ./patroni.yml

  dbnode2:
    image: seocahill/patroni:1.2.5
    volumes:
      - db-2-data:/data
      - ./patroni.yml:/patroni.yml
      - ./config/wal-e:/etc/wal-e.d/env
    env_file:
      - db-2.env
    deploy:
      placement:
        constraints:
          - node.role == worker
    entrypoint: patroni
    command: ./patroni.yml
    
  dbnode3:
    image: seocahill/patroni:1.2.5
    volumes:
      - db-3-data:/data
      - ./patroni.yml:/patroni.yml
      - ./config/wal-e:/etc/wal-e.d/env
    env_file:
      - db-3.env
    deploy:
      placement:
        constraints:
          - node.role == worker
    entrypoint: patroni
    command: ./patroni.yml

volumes:
  db-1-data:
  db-2-data:
  db-3-data:
  etcd_data:

secrets:
   haproxy_cfg:
     file: config/haproxy.cfg