On 2019-02-21, Philip Rhoades <phil@xxxxxxxxxxxxx> wrote: > People, > > I have exported an existing container with: This isn't the right list for this -- I would suggest mailing <dev@xxxxxxxxxxxxxxxxxx>. This is a kernel mailing list -- but I'll answer your question anyway. > mkdir rootfs > docker export rails_dsf | tar -C rootfs -xvf - > runc spec > runc run rails_dsf Check whether "readonly": true is in config.json, and set it to false if it is. I would recommend using skopeo and umoci for generating an OCI runtime bundle, since those are more modern. The equivalent to the above command would be: $ # You need an image to operate on. % id="$(docker commit rails_dsf rails_img)" # Convert the Docker image to an OCI image. % skopeo copy docker-daemon:rails_img:latest oci:rails_img:latest # Unpack the image into an OCI runtime bundle. % umoci unpack --image rails_img:latest bundle # Run the bundle with runc. % runc run -b bundle rails_dsf (The nice thing is that you can then generate new layers if you want using OCI -- as well as taking advantage of rootless containers if you use the --rootless flag to umoci.) -- Aleksa Sarai Senior Software Engineer (Containers) SUSE Linux GmbH <https://www.cyphar.com/>
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