2:04 a.m.
Greetings,
I observe the following strange behavior as regarding volume ownership
in rootless mode. I have user oracle with uid 502 and group oinstall with
gid 501 both on host system and in my container.
I create a volume and change it's ownership as follows:
podman volume create data
podman unshare chown 502:501 ~/.local/share/containers/storage/volumes/rdata/_data
ls -ld ~/.local/share/containers/storage/volumes/rdata/_data
drwxr-xr-x 1 200501 200500 0 мар 14 2021
/home/ivans/.local/share/containers/storage/volumes/rdata/_data/
So far so good. I run my test container:
podman run --name test --detach --volume rdata:/mnt test
And check the volume ownership inside the container:
podman exec -it test ls -ld /mnt
The owner reported for /mnt is the one configured with --user, when container
was built, not oracle:oinstall!
I stop the container and check volume owner. It has changed:
ls -ld ~/.local/share/containers/storage/volumes/rdata/_data
drwxr-xr-x 1 201000 200999 0 мар 14 2021
/home/ivans/.local/share/containers/storage/volumes/phsdata/_data/
I change volume owner again:
podman unshare chown 502:501 ~/.local/share/containers/storage/volumes/rdata/_data
and run the container using same command:
podman run --name test --detach --volume rdata:/mnt test
The second time everything is correct:
podman exec -it test ls -ld /mnt
drwxr-xr-x 1 oracle oinstall 0 Mar 14 2021 /mnt
And same outside of container:
drwxr-xr-x 1 200501 200500 0 мар 14 2021
/home/ivans/.local/share/containers/storage/volumes/rdata/_data/
If I remove the volume and create it again, then the ownership is again changed to
default container user. So expected ownership is set only after second mount of the
volume.
What might be wrong here?
Best regards,
--
\ / | |
(OvO) | Михаил Иванов |
(^^^) | |
\^/ | E-mail: ivans(a)isle.spb.ru |
^ ^ | |