docker-compose.yml

version: '3.9'

services:
  pg-master:
    image: 'pg-replication:latest'
    ports:
      - 5432:5432
    environment:
      P_MASTER: P_MASTER
      POSTGRES_USER: postgres
      POSTGRES_PASSWORD: postgres
      REPLICA_POSTGRES_USER: repuser
      REPLICA_POSTGRES_PASSWORD: repuser
      REPLICATE_TO: pg-slave1
      REPLICATE_TO2: pg-slave2
      REPLICA_NAME: r1
      REPLICA_NAME2: r2
      SYNCHRONOUS_COMMIT: 'off'
      PGDATA: /var/lib/postgresql/data/pgdata

  pg-slave1:
    image: 'pg-replication:latest'
    ports:
      - 5433:5432
    environment:
      P_SLAVE1: P_SLAVE1
      POSTGRES_USER: repuser
      POSTGRES_PASSWORD: repuser
      REPLICA_NAME: r1
      REPLICATE_FROM: pg-master
      PGDATA: /var/lib/postgresql/data/pgdata

  pg-slave2:
    image: 'pg-replication:latest'
    ports:
      - 5434:5432
    environment:
      P_SLAVE2: P_SLAVE2
      POSTGRES_USER: repuser
      POSTGRES_PASSWORD: repuser
      REPLICA_NAME2: r2
      REPLICATE_FROM: pg-master
      PGDATA: /var/lib/postgresql/data/pgdata