我的宅基地Docker容器中缺少MySQL套接字

Question

I have this issue with my app

SQLSTATE[HY000] [2002] Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock'(2)

I'm using 2 docker containers to host my laravel 4.2 (I think :o) from this build

Here is my docker-compose.yml

web:
image: shincoder/homestead:php5.6
restart: always
ports:
    - "8000:80" # web
    - "2222:22" # ssh
    - "35729:35729" # live reload
    - "9876:9876" # karma server
volumes:
    - ~/.composer:/home/homestead/.composer # composer caching
    - ~/.gitconfig:/home/homestead/.gitconfig # Git configuration ( access alias && config )
    - ~/.ssh:/home/homestead/.ssh # Ssh keys for easy deployment inside the container
    - ~/apps:/apps # all apps
    - ~/apps/volumes/nginx/sites-available:/etc/nginx/sites-available # nginx sites ( in case you recreate the container )
    - ~/apps/volumes/nginx/sites-enabled:/etc/nginx/sites-enabled # nginx sites ( in case you recreate the container )
links:
    - mariadb
mariadb:
    image: tutum/mariadb
    restart: always
    ports:
        - "33060:3306"
    environment:
        MARIADB_USER: admin # cannot be changed ( for info. only )
        MARIADB_PASS: root
    volumes:
        - ~/apps/volumes/mysql:/var/lib/mysql # database files

the first one is homesteaddocker_web_1 with php5.6 and the second one homesteaddocker_mariadb_1. I've searched for the mysql socket in homesteaddocker_web_1 and its not there but I've found it in the second container (homesteaddocker_mariadb_1)

So how can I fix this please.

Answer 1

Docker containers are networked with a bridge.

For one container to talk to another, you need to link them: https://docs.docker.com/engine/userguide/networking/

If your container needs to access network ressources on your local network, you may want to use --network='host' in your docker run command.