docker-postgres-replication/docker-compose.yml at master · alemarte/docker-postgres-replication · GitHub

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version: '3'

services:
  pg-master:
    build: '.'
    image: 'danieldent/postgres-replication'
    restart: 'always'
    environment:
      POSTGRES_USER: 'postgres'
      POSTGRES_PASSWORD: 'postgres'
      PGDATA: '/var/lib/postgresql/data/pgdata'
    volumes:
     - master_data:/var/lib/postgresql/data
    expose:
     - '5432'
    deploy:
      replicas: 1
      restart_policy:
        condition: on-failure


  pg-slave:
    build: '.'
    image: 'danieldent/postgres-replication'
    restart: 'always'
    environment:
      POSTGRES_USER: 'postgres'
      POSTGRES_PASSWORD: 'postgres'
      PGDATA: '/var/lib/postgresql/data/pgdata'
      REPLICATE_FROM: 'pg-master'
    volumes:
     - '/var/lib/postgresql/data'
    expose:
     - '5432'
    links:
     - 'pg-master'
    deploy:
      replicas: 2
      update_config:
        parallelism: 2
      restart_policy:
        condition: on-failure

volumes:
  master_data: