I created grafana with a docker container. And I created mysql with docker container. After that, I tried to access grafana and add mysql container via 'data source'. However, the following error occurred. What is the problem?

db query error: query failed - please inspect Grafana server log for details

[grafana's data sources setting]

Host : 10.0.7.35:3306

And I set bind-address at '/etc/mysql/my.cnf' for 0.0.0.0:3306 in mysql container.

CodePudding user response：

You can do it in three ways

1. You can run docker with MySQL and expose 3306 (by adding -p 3306:3306 port and find IP of docker and connect to that port on that IP from the same network
2. Expose MySQL port and then run app docker with --link name_of_mysql_container:mysql and then on the app docker just connect to name_of_mysql_container
3. Use Docker composer create docker-composer.yml with content similar to:

version: '3.2'
    services:
      app:
          build: .
          image: lap
          environment:
             - DB_HOST=mysql
      mysql:
          image: mysql
          ports:
             - "3306:3306"
          environment:
             - MYSQL_ROOT_PASSWORD=root  

And then you can use in your app container database connection to host named 'mysql'