services:
  postgres-master:
    image: bitnami/postgresql:16
    environment:
      - POSTGRESQL_REPLICATION_MODE=master
      - POSTGRESQL_REPLICATION_USER=repl_user
      - POSTGRESQL_REPLICATION_PASSWORD=repl_pass
      - POSTGRESQL_USERNAME=admin
      - POSTGRESQL_PASSWORD=admin
      - POSTGRESQL_DATABASE=mydb
    ports:
      - '5432:5432'