How to inspect the fs of a running Docker container

Question

Is there a way to inspect a running Docker container? Eg, inspect the filesystem using a shell, etc?

To inspect an image, we could using docker run <tag> /bin/bash but I am looking to inspect a running container, not an image.

note that docker container inspect is not what I am looking for - that command just gives me metadata about the container.

Answer 1

您可以使用docker exec命令

docker exec -it {container Id or name} command 

Answer 2

Assuming that your container has a typical filesystem, you can just use docker exec to start a shell inside the container, as in:

docker exec -it mycontainer bash

Or if bash isn't available (for example, Alpine-based images):

docker exec -it mycontainer sh

Alternatively, you can export a container's filesystem as a tar archive using docker export . For example:

docker export -o mycontainer.tar mycontainer

And then you can inspect the archive or extract it as necessary. If you just want to a file listing, then:

docker export mycontainer | tar tf -