Docker : please show me how to edit a file in a running container

Zitat von Symbiot

Is it possible to do without having to recreate the whole container with port mappings, drive mappings etc etc?

Docker does not permit this kind of editing. Port mapping at the end is just a netfilter (iptables) nat rule. However i've done some edit changing the restart policy for example. If you run docker inspect containername you'll get a json output with lots of information of the docker container.

For example you can find this kind of info

"ResolvConfPath": "/media/dd703d81-9006-411d-a256-587ac3260154/docker/containers/b6e58f504b6ddf0180bb3ba372432a47b1593ab4317d34447d61ff57dc24d50a/resolv.conf",


      "HostnamePath": "/media/dd703d81-9006-411d-a256-587ac3260154/docker/containers/b6e58f504b6ddf0180bb3ba372432a47b1593ab4317d34447d61ff57dc24d50a/hostname",


      "HostsPath": "/media/dd703d81-9006-411d-a256-587ac3260154/docker/containers/b6e58f504b6ddf0180bb3ba372432a47b1593ab4317d34447d61ff57dc24d50a/hosts",


      "LogPath": "/media/dd703d81-9006-411d-a256-587ac3260154/docker/containers/b6e58f504b6ddf0180bb3ba372432a47b1593ab4317d34447d61ff57dc24d50a/b6e58f504b6ddf0180bb3ba372432a47b1593ab4317d34447d61ff57dc24d50a-json.log

I can change the restart policy by editing this file with the daemon OFF. So you can try and edit the mappings inside that file to try if you want, not guaranteed that i'll work BTW

/media/dd703d81-9006-411d-a256-587ac3260154/docker/containers/b6e58f504b6ddf0180bb3ba372432a47b1593ab4317d34447d61ff57dc24d50a/hostconfig.json

The docker plugin in version 3 has an edit feature that basically does copy the old settings, then you add the or edit settings, delete the old container and starts a new one, all in one go. Unfortunately the plugin is stalled for latest omv3 datamodels

Well if you're gonna change files in the image then commit it (use a tag to differentiate from the original). Then launch a new container with that new image.