How to uninstall docker in a virtual machine

How to uninstall docker in a virtual machine

Docker is one of the most popular cloud computing technologies and is widely used in multiple cloud platforms. However, users may need to uninstall Docker for various reasons. To uninstall Docker in a virtual machine, you can perform the following steps:

Step 1: Stop the container

Before uninstalling Docker, you need to stop all running containers. You can view all running Docker containers in the system through the following command:

$ docker ps

Then, you can stop the running containers through the following command:

$ docker stop [容器ID]

When you need to stop multiple containers, you can execute them one by one. above command.

Step 2: Delete Containers

After all containers have been stopped, they need to be deleted. You can use the following command to delete all containers in batches:

$ docker rm $(docker ps -a -q)

Among them, the -a parameter is used to display all containers, and -q returns the container ID.

Step 3: Delete the image

After all containers are cleared, you need to further delete the image. You can use the following command to batch delete all images in the local directory:

$ docker rmi $(docker images -q)

Similarly, the -q parameter is used to return the image ID.

Step 4: Uninstall Docker

After all containers and images have been deleted, you can uninstall Docker to release related resources. Docker can be completely uninstalled with the following command:

$ sudo apt-get purge docker-engine

This command will uninstall the docker-engine package and all other dependencies.

Step 5: Delete the Docker directory

Finally, you need to delete all Docker-generated directories. You can use the following command to delete:

$ sudo rm -rf /var/lib/docker

The above are the complete steps to uninstall Docker in the virtual machine. It should be noted that it contains several operations that completely delete the system. Please perform it with caution to avoid data loss.

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