docker-compose.yml

version: '2'

services:

 postgresql:
    image: sameersbn/postgresql:9.6
    container_name: postgresql

    networks:
      askcharlie:
        ipv4_address: 172.25.0.10

    environment:
    - restart=always
    - PG_PASSWORD=guestbook
    - DB_USER=devops
    - DB_PASS=rbdc9vtrc8
    - DB_NAME=guestbook  
    
    volumes:
    - "/srv/docker/postgresql:/var/lib/postgresql"
    
    ports:
     - "5432:5432"
    
 redis:
    image: redis
    container_name: redis
    networks:
      askcharlie:
        ipv4_address: 172.25.0.11

    ports:
     - "6379:6379"

 web:
    build: .
    container_name: guestbook
    links:
      - postgresql
      - redis

    depends_on:
      - postgresql
      - redis

    networks:
      askcharlie:
        ipv4_address: 172.25.0.9

    ports:
     - "9292:9292"

networks:
  askcharlie:
    driver: bridge
    ipam:
      driver: default
      config:
        - subnet: 172.25.0.0/16
          gateway: 172.25.0.1