How docker restart mysql

Docker is an efficient containerization technology that helps users package applications into portable containers and run them anywhere without worrying about different environments and configurations. MySQL is a common database choice when deploying web applications using Docker. However, sometimes users may need to restart the MySQL server in the container. This article will demonstrate how to restart the MySQL server in a Docker container.

1. Find the running MySQL container

Before you begin, you first need to determine the Docker container ID that is running MySQL. All running containers can be listed using the following command:

docker ps

If the MySQL container ID is not in the list, make sure the MySQL container is installed and started. Otherwise, you can use the following command to start a new MySQL container:

docker run -d --name=mysql_container -p 3306:3306 -e MYSQL_ROOT_PASSWORD=your_password mysql

The above command will run a MySQL container named mysql_container in the background and perform port mapping from the host's 3306 port to the container's 3306 port. To change the root user's password, replace "your_password".

2. Enter the running MySQL container

After confirming that the MySQL container is running, the next step is to enter the container. You can enter a running MySQL container using the following command:

docker exec -it mysql_container bash

The above command will open a bash shell and navigate you into the running MySQL container. In this shell you will have full access to the container.

3. Stop MySQL Server

To restart the MySQL server, you must first stop it. In a running MySQL container, you can use the following command to stop the MySQL server:

service mysql stop

4. Restart the MySQL server

After stopping the MySQL server, you can use the following command to restart Start it:

service mysql start

If you are using a different Linux distribution, use the correct command to restart the MySQL server.

5. Exit the MySQL container

After restarting the MySQL server, you can exit the container using the following command:

exit

After exiting the container, you will be returned to Host shell.

6. Verify that the MySQL server is running

Finally, you can verify that the MySQL server is running using the following command:

docker ps

The above command will list All running containers, which should include your MySQL container. Check whether the status of the container is "Running":

CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                               NAMES
93eef0727b34        mysql               "docker-entrypoint.s…"   27 seconds ago      Up 25 seconds       0.0.0.0:3306->3306/tcp, 33060/tcp   mysql_container

If the status in the above output is "Up" (running), the MySQL server has been successfully restarted.

Summary

This article demonstrates how to restart the MySQL server in a Docker container. MySQL is a common database choice when deploying web applications using Docker. However, restarting the MySQL server in a container is sometimes necessary. These steps can help you restart your MySQL server in a Docker container when it has issues or needs to be updated.

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