Docker: How to delete an existing image

To delete an existing Docker image, you can use docker rmithe command.

The following is the complete process

Step 1: Stop the container

If the container is running and you need to stop the running Docker container, you can use docker stopthe command.

Here are the steps to stop a container:

1. First, use docker psthe command to list all running containers and find the container ID or container name of the container you want to stop. Remember the identifier or name of the container you want to stop.
2. Run the following command to stop the container:

docker stop <容器ID或名称>

1. Replace <容器ID或名称>with the actual identifier or name of the container you want to stop.
2. For example, if you want to stop abcd1234the container with container ID , you can run the following command:

docker stop abcd1234

1. Alternatively, if you want to stop mycontainerthe container named , you can run the following command:

docker stop mycontainer

1. If you want to stop multiple containers, you can specify multiple container IDs or names in the command.
2. Docker will send a stop signal to the specified container to stop running.

Note that stopping a container does not delete the container, it just stops it from running. If you want to delete a stopped container, use docker rmthe command.

Step 2: Delete the image

1. First, use docker imagesthe command to list all available Docker images and find the image ID or image name of the image you want to delete. Remember the identifier or name of the image you want to delete.
2. Run the following command to delete the image:

docker rmi <镜像ID或名称>

1. Replace <镜像ID或名称>with the actual identifier or name of the image you want to delete.
2. For example, if you want to delete abcd1234the image with image ID, you can run the following command:

docker rmi abcd1234

1. Alternatively, if you want to delete myimage:latestthe image named , you can run the following command:

docker rmi myimage:latest

1. If you want to delete multiple images, you can specify multiple image IDs or names in the command.
2. Docker will attempt to delete the specified image. If the image is in use or has dependencies, Docker will display an error message and refuse to remove the image. In this case, you may need to stop or delete the containers that depend on the image before trying to delete the image.

Please note that deleting an image is an irreversible operation and cannot be recovered after deletion. Before performing the removal operation, make sure that you actually want to remove the image and that no other containers or dependencies depend on it.