如何在自己的网络中运行Docker容器

Question

Today I switched from "Docker Toolbox" to "Docker for Mac", because Docker now has finally write-access to my User directory (which doesn't worked with "Docker Toolbox") - Yay!

But this change also includes that all containers now running under my localhost and not under Docker's IP as before (eg 192.168.99.100 ).

Since my localhost listens to various ports by default (80, 443, ...) and I don't want to always add new created ports, that doesn't conflict with the standard one's, to my local dev domains (eg example.dev:8443 ), I wonder how to run my containers as before.

I read about network configs and tried a lot of things (creating a new host network, exposing ports with an IP in front of it, ...), but didn't got it working.

What kind of config do I need to run my app container with the IP 192.168.99.100 ? Thats my docker-compose.yml so far.

version: '2'
services:
  app:
    build:
      context: .
      dockerfile: Dockerfile
    depends_on:
      - mysql
      - redis
      - memcached
    ports:
      - 80:80
      - 443:443
      - 22:22
      - 3000:3000
      - 3001:3001
    volumes:
      - ./app/:/app/
      - /tmp/debug/:/tmp/debug/
      - ./:/docker/
    volumes_from:
      - storage
    # cap and privileged needed for slowlog
    cap_add:
      - SYS_PTRACE
    privileged: true
    env_file:
      - etc/environment.yml
      - etc/environment.development.yml

  mysql:
    build:
      context: docker/mysql/
      dockerfile: MariaDB-10
    ports:
      - 3306:3306
    volumes_from:
      - storage
    volumes:
      - ./data/mysql:/var/lib/mysql
      - /tmp/debug/:/tmp/debug/
    env_file:
      - etc/environment.yml
      - etc/environment.development.yml

  redis:
    build: docker/redis/
    volumes_from:
      - storage
    env_file:
      - etc/environment.yml
      - etc/environment.development.yml

  memcached:
    build: docker/memcached/
    volumes_from:
      - storage
    env_file:
      - etc/environment.yml
      - etc/environment.development.yml

  storage:
    build: docker/storage/
    volumes:
      - /storage

Answer 1

You need to declare "networks:" for each of your services:

eg

version: '2'
services:
    app:
        image: xxxx:xxx
        ports:
            - "80:80"
        networks:
            - my-network
    mysql:
        image: xxxx:xxx
        networks:
            - my-network
networks:
    my-network:
        driver: bridge

Then from side your app configuration, you can use "mysql" as the hostname of database server.

Answer 2

You can define a network in your compose file, then add any services to the network.

https://docs.docker.com/compose/networking/

But I would suggest you just use different ports now that you are running natively. Ie 8080:80