docker-compose.yml

# docker compose file for running a 3-node PostgreSQL cluster
# with 3-node etcd cluster as the DCS and one haproxy node
version: "2"

networks:
    demo:

services:
    etcd1:
        image: patroni
        networks: [ demo ]
        env_file: docker/etcd.env
        container_name: demo-etcd1
        hostname: etcd1
        command: etcd -name etcd1 -initial-advertise-peer-urls http://etcd1:2380

    etcd2:
        image: patroni
        networks: [ demo ]
        env_file: docker/etcd.env
        container_name: demo-etcd2
        hostname: etcd2
        command: etcd -name etcd2 -initial-advertise-peer-urls http://etcd2:2380

    etcd3:
        image: patroni
        networks: [ demo ]
        env_file: docker/etcd.env
        container_name: demo-etcd3
        hostname: etcd3
        command: etcd -name etcd3 -initial-advertise-peer-urls http://etcd3:2380

    patroni1:
        image: patroni
        networks: [ demo ]
        env_file: docker/patroni.env
        hostname: patroni1
        container_name: demo-patroni1
        environment:
            PATRONI_NAME: patroni1

    patroni2:
        image: patroni
        networks: [ demo ]
        env_file: docker/patroni.env
        hostname: patroni2
        container_name: demo-patroni2
        environment:
            PATRONI_NAME: patroni2

    patroni3:
        image: patroni
        networks: [ demo ]
        env_file: docker/patroni.env
        hostname: patroni3
        container_name: demo-patroni3
        environment:
            PATRONI_NAME: patroni3

    haproxy:
        image: patroni
        networks: [ demo ]
        env_file: docker/patroni.env
        hostname: haproxy
        container_name: demo-haproxy
        ports:
            - "5000:5000"
            - "5001:5001"
        command: haproxy