version: '3.5'

services:
  postgres:
    container_name: postgres_container
    image: postgres
    environment:
      POSTGRES_USER: postgres
      POSTGRES_PASSWORD: password
      PGDATA: /data/postgres
    volumes:
       - postgres:/data/postgres
    ports:
      - "5432:5432"
    networks:
      - postgres
    restart: unless-stopped

  postgres_exporter:
    image: wrouesnel/postgres_exporter
    environment:
      DATA_SOURCE_NAME: "postgresql://postgres:password@postgres_container:5432/postgres?sslmode=disable"
    ports:
      - "9187:9187"
    networks:
      - postgres

networks:
  postgres:
    driver: bridge

postgresql://postgres:password@postgres_container:5432/postgres?sslmode=disable