docker-compose.yaml

version: '3.5'

services:
  postgres1:
    container_name: postgres_shard1
    image: pgshard
    environment:
      POSTGRES_USER: ${POSTGRES_USER:-postgres}
      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:-changeme}
    ports:
      - "5432:5432"
    networks:
      - postgres
    restart: unless-stopped

  postgres2:
    container_name: postgres_shard2
    image: pgshard
    environment:
      POSTGRES_USER: ${POSTGRES_USER:-postgres}
      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:-changeme}
    volumes:
       - postgres:/data/postgres
    ports:
      - "5433:5432"
    networks:
      - postgres
    restart: unless-stopped

  postgres3:
    container_name: postgres_shard3
    image: pgshard
    environment:
      POSTGRES_USER: ${POSTGRES_USER:-postgres}
      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:-changeme}
    ports:
      - "5434:5432"
    networks:
      - postgres
    restart: unless-stopped

  pgadmin:
    container_name: pgadmin_container
    image: dpage/pgadmin4
    environment:
      PGADMIN_DEFAULT_EMAIL: ${PGADMIN_DEFAULT_EMAIL:-pgadmin4@pgadmin.org}
      PGADMIN_DEFAULT_PASSWORD: ${PGADMIN_DEFAULT_PASSWORD:-admin}
    volumes:
       - pgadmin:/root/.pgadmin
    ports:
      - "${PGADMIN_PORT:-5050}:80"
    networks:
      - postgres
    restart: unless-stopped

networks:
  postgres:
    driver: bridge

volumes:
    postgres:
    pgadmin: