Postgres master slave

docker-compose.yml

version: '3'

services:
  pg-master:
    restart: always
    image: sameersbn/postgresql:10
    volumes:
      - pg-master:/var/lib/postgresql
    ports:
      - "5434:5432"
    environment:
      - DEBUG=false
      - PG_PASSWORD=postgres
      - DB_USER=dviejo
      - DB_PASS=dviejo_password
      - DB_NAME=dviejo
      - DB_UNACCENT=false
      - REPLICATION_MODE=master
      - REPLICATION_USER=replicator
      - REPLICATION_PASS=replpassword
      - REPLICATION_SSLMODE=

  pg-slave:
    restart: always
    image: sameersbn/postgresql:10
    volumes:
      - pg-slave:/var/lib/postgresql
    ports:
      - "5435:5432"
    links:
      - pg-master:master
    environment:
      - DEBUG=false
      - REPLICATION_MODE=slave
      - REPLICATION_HOST=master
      - REPLICATION_USER=replicator
      - REPLICATION_PASS=replpassword

  pgadmin:
    image: dpage/pgadmin4:3.2
    ports:
      - "5051:80"
    environment:
      - PGADMIN_DEFAULT_EMAIL=dviejo@gmail.com
      - PGADMIN_DEFAULT_PASSWORD=123456
    links:
      - pg-master

volumes:
  pg-master:
    driver: "local"
  pg-slave:
    driver: "local"
  sessions:
    driver: "local"