Docker / Engine: CLI docker container diff

Docker: CLI container diff command

When you use Docker, you may want to observe changes that have been made to a specific container. One of the user-friendly tools for this task is the command docker container diff. This command allows you to see which files have been added, modified, or removed in your container compared to the image from which the container was created. In other words, by using this command, you can investigate the changes made to your container.

In Docker, each container is created from an image, and consequently, all files and directories present in the container at the time of its creation are inherited. However, it may be possible that during the time and due to the execution of various operations or the installation of new software, new files and directories have been added to the container or existing files have been modified. This is where the command docker container diff comes in handy, allowing you to identify the changes.

Using this command is very simple. You only need to specify the container ID or its name along with the command. The system will then provide you with a list of changes made in that container. For example, if several new files have been added to the container, you will be able to see them and receive information about the changes related to the files.

The command docker container diff can be very useful during debugging or investigating issues, as it allows you to understand whether any unintended changes have occurred in the files. Overall, this tool is one of the very practical elements that can assist you in managing containers.

docker container diff [CONTAINER_ID]

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