docker-compose.yml

version: "2"
services:
  lb:
    container_name: lb
    image: haproxy-postgresql
    ports:
      - 8080:8080
      - 5432:5432
      - 5433:5433
    links:
      - pg1
      - pg2
      - pg3
  pg1:
    container_name: pg1
    image: postgresql:9.5
  pgcheck1:
    image: camptocamp/pgcheck
    network_mode: "container:pg1"
  pg2:
    container_name: pg2
    image: postgresql:9.5
    environment:
      - PG_REPLICA=true
  pg3:
    container_name: pg3
    image: postgresql:9.5
    environment:
      - PG_REPLICA=true