Some issues encountered when using rsync to duplicate filesystem.
When duplicating the files, rsync didn't take care of extended attributes, users might lose rights on some files.
In order to create/update sparse files, to steps required.
To create new files in sparse mode
rsync --ignore-existing --sparse ...To update all existing files (including the previously created sparse ones) inplace.
rsync --inplace ...To change the running container mapping port with or without recreating container.
Stop and commit running container, then run new container using new image.
This requires changing image name and knowing the docker run command parameters.
docker stop test01
docker commit test01 test02
docker run -p 8080:8080 -td test02Stop the container and docker service, then change the docker container configuration file hostconfig.json. After that, start docker service and container.
This requires updating docker run command document.
docker stop test01
systemctl stop dockerhostconfig.json filevi /var/lib/docker/containers/[hash_of_the_container]/hostconfig.jsonor following file when using snap
/var/snap/docker/common/var-lib-docker/containers/[hash_of_the_container]/hostconfig.jsonsystemctl start docker
docker start test01