Uninstalling Docker

Perform the following steps to uninstall Docker:

1. Delete all running containers.

   1	docker rm -vf $(docker ps -a -q)

   

   To back up a running container, run the docker commit command to save the container as an image.

   1	docker commit -m "<message>" -a "<author>" <Container ID> <Image name>:<tag>

   The backup of image will be described in the following.

2. Delete all local images.

   1	docker rmi -f $(docker images -a -q)

   

   To back up a Docker image to a local file, run the docker save command to save the image as a .rar file.

   1	docker save -o <File name>.rar <Image name>:<tag>

3. Delete the Docker components from /usr/bin.
   1. Query the Docker components in /usr/bin.

      1

      ll

      

   2. Delete these components in sequence.

      1	rm -f /usr/bin/<Component name>

4. Reset the docker.service configuration file.
   1. Clear the docker.service file.

      1	echo '' > /usr/lib/systemd/system/docker.service

   2. Reload the daemon service.

      1	systemctl daemon-reload

      Docker is uninstalled.