docker-compose.yml

# docker compose file for running a 3-node PostgreSQL cluster
# with etcd as the SIS

patroni_etcd:
    container_name: patroni_etcd
    image: patroni
    command: --etcd

dbnode1:
    image: patroni
    hostname: dbnode1
    links:
        - patroni_etcd:patroni_etcd
    volumes:
        - ./patroni:/patroni
    env_file: docker/patroni-secrets.env
    environment:
        PATRONI_ETCD_HOST: patroni_etcd:2379
        PATRONI_NAME: dbnode1
        PATRONI_SCOPE: testcluster

dbnode2:
    image: patroni
    hostname: dbnode2
    links:
        - patroni_etcd:patroni_etcd
    volumes:
        - ./patroni:/patroni
    env_file: docker/patroni-secrets.env
    environment:
        PATRONI_ETCD_HOST: patroni_etcd:2379
        PATRONI_NAME: dbnode2
        PATRONI_SCOPE: testcluster

dbnode3:
    image: patroni
    hostname: dbnode3
    links:
        - patroni_etcd:patroni_etcd
    volumes:
        - ./patroni:/patroni
    env_file: docker/patroni-secrets.env
    environment:
        PATRONI_ETCD_HOST: patroni_etcd:2379
        PATRONI_NAME: dbnode3
        PATRONI_SCOPE: testcluster

haproxy:
    image: patroni
    links:
        - patroni_etcd:patroni_etcd
    ports:
        - "5000:5000"
        - "5001:5001"
    environment:
        PATRONI_ETCD_HOST: patroni_etcd:2379
        PATRONI_SCOPE: testcluster
    command: --confd