Docker wrapper doesn't remove image after task has finished

[computezrmle]

Please verify.
If necessary please provide a patch.
Don't know if docker behaves differently.

At the end of my docker task logs (with podman) a command sequence like this can be found:

running docker command: stop boinc__lhcathomedev.cern.ch_lhcathome-dev__theory_2848-4472926-82_1
command output:
boinc__lhcathomedev.cern.ch_lhcathome-dev__theory_2848-4472926-82_1
running docker command: container rm boinc__lhcathomedev.cern.ch_lhcathome-dev__theory_2848-4472926-82_1
command output:
boinc__lhcathomedev.cern.ch_lhcathome-dev__theory_2848-4472926-82_1
running docker command: image rm boinc__lhcathomedev.cern.ch_lhcathome-dev__theory_2848-4472926-82

stop seems to be OK.
container rm seems to be OK

image rm doesn't seem to be OK (at least if podman is used).

According to the podman manual rm removes containers while rmi is the command to remove images.
As a result unused images remain on the local storage until removed manually.

[AenBleidd]

@computezrmle, might this be the case #6051 ?

[computezrmle]

For me this line doesn't make sense - at least for podman - since it creates an illegal remove command.

boinc/samples/docker_wrapper/docker_wrapper.cpp

Line 358 in 733d769

sprintf(cmd, "image rm %s", image_name);

[computezrmle]

Sorry, mixed podman rmi with podman image rm which seem to be the same.

What remains is the fact that disk usage and number of images steadily grows.
Any idea how this can be automatically cleaned.

[davidpanderson]

'podman image rm ' is the correct syntax.

What happens when you run the command manually?

[computezrmle]

Hm.
When I run the command manually it works.
I think I was misreading the output from certain podman commands like podman images -a which looks like:

REPOSITORY                   TAG         IMAGE ID      CREATED            SIZE
<none>                       <none>      33cdac713b70  About an hour ago  352 MB
localhost/ff                 latest      241d9a8fe276  About an hour ago  352 MB
<none>                       <none>      187986ebe8de  About an hour ago  352 MB
<none>                       <none>      557ccc8092f9  About an hour ago  352 MB
<none>                       <none>      bc09b8697071  About an hour ago  352 MB
docker.io/library/almalinux  9           df3270cc8bc8  2 weeks ago        217 MB

At first sight it suggests there are 4 unused images consuming 352 MB each.
But I noticed this is virtual disk usage and the images disappear when (in this case) ff is removed.

Will close this issue.