| Commit message (Collapse) | Author | Age |
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Fixes: #4062
Signed-off-by: baude <bbaude@redhat.com>
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Be less precise on the exit code and lot the exit code to the journal when it fails.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
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Unmounting a container that is already unmounted is OK
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We should not be throwing errors because the operation we wanted
to perform is already done. Now, it is definitely strange that a
container is actually unmounted, but shows as mounted in the DB -
if this reoccurs in a way where we can investigate, it's worth
tearing into.
Fixes #4033
Signed-off-by: Matthew Heon <mheon@redhat.com>
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exec: fix --preserve-fds
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There were two problems with preserve fds.
libpod didn't open the fds before passing _OCI*PIPE to conmon. This caused libpod to talk on the preserved fds, rather than the pipes, with conmon talking on the pipes. This caused a hang.
Libpod also didn't convert an int to string correctly, so it would further fail.
Fix these and add a unit test to make sure we don't regress in the future
Note: this test will not pass on crun until crun supports --preserve-fds
Signed-off-by: Peter Hunt <pehunt@redhat.com>
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if slirp4netns supports sandboxing, enable it.
It automatically creates a new mount namespace where slirp4netns will
run and have limited access to the host resources.
It needs slirp4netns 0.4.1.
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
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Report errors when trying to pause rootless containers
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If you are running a rootless container on cgroupV1
you can not pause the container. We need to report the proper error
if this happens.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
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Podman-remote run should wait for exit code
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This change matches what is happening on the podman local side
and should eliminate a race condition.
Also exit commands on the server side should start to return to client.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
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We have leaked the exit number codess all over the code, this patch
removes the numbers to constants.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
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exec: Register resize func a bit later
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if we register the resize func too early, it attempts to read from the 'ctl' file before it exists. this causes the func to error, and the resize to not go through.
Fix this by registering resize func later for conmon. This, along with a conmon fix, will allow exec to know the terminal size at startup
Signed-off-by: Peter Hunt <pehunt@redhat.com>
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clean up after healthcheck execs
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when executing a healthcheck, we were not cleaning up after exec's use
of a socket. we now remove the socket file and ignore if for reason it
does not exist.
Fixes: #3962
Signed-off-by: baude <bbaude@redhat.com>
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Add further fields to StorageContainer
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This will be used when we allow 'podman ps' to display info on
storage containers instead of Libpod containers.
Signed-off-by: Matthew Heon <mheon@redhat.com>
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rootless: automatically create a systemd scope
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when running in rootless mode and using systemd as cgroup manager
create automatically a systemd scope when the user doesn't own the
current cgroup.
This solves a couple of issues:
on cgroup v2 it is necessary that a process before it can moved to a
different cgroup tree must be in a directory owned by the unprivileged
user. This is not always true, e.g. when creating a session with su
-l.
Closes: https://github.com/containers/libpod/issues/3937
Also, for running systemd in a container it was before necessary to
specify "systemd-run --scope --user podman ...", now this is done
automatically as part of this PR.
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
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When --cgroupns=private is used we need to mount a new cgroup file
system so that it points to the correct namespace.
Needs: https://github.com/containers/crun/pull/88
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
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Lookup was written before volume states merged, but merged after,
and CI didn't catch the obvious failure here. Without a valid
state, we try to unmarshall into a null pointer, and 'volume rm'
is completely broken because of it.
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
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Do not prune images being used by a container
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Podman is not the only user of containers/storage, and as such we
cannot rely on our database as the sole source of truth when
pruning images. If images do not show as in use from Podman's
perspective, but subsequently fail to remove because they are
being used by a container, they're probably being used by Buildah
or another c/storage client.
Since the images in question are in use, we shouldn't error on
failure to prune them - we weren't supposed to prune them in the
first place.
Fixes: #3983
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
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Add `ContainerManager` annotation to created containers
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This change adds the following annotation to every container created by
podman:
```json
"Annotations": {
"io.containers.manager": "libpod"
}
```
Target of this annotaions is to indicate which project in the containers
ecosystem is the major manager of a container when applications share
the same storage paths. This way projects can decide if they want to
manipulate the container or not. For example, since CRI-O and podman are
not using the same container library (libpod), CRI-O can skip podman
containers and provide the end user more useful information.
A corresponding end-to-end test has been adapted as well.
Relates to: https://github.com/cri-o/cri-o/pull/2761
Signed-off-by: Sascha Grunert <sgrunert@suse.com>
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Support running containers without CGroups
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This is mostly used with Systemd, which really wants to manage
CGroups itself when managing containers via unit file.
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
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When first mounting any named volume, copy up
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Previously, we only did this for volumes created at the same time
as the container. However, this is not correct behavior - Docker
does so for all named volumes, even those made with
'podman volume create' and mounted into a container later.
Fixes #3945
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
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This isn't included in Docker, but seems handy enough.
Use the new API for 'volume rm' and 'volume inspect'.
Fixes #3891
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
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Ignore ENOENT on umount of SHM
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Signed-off-by: Matthew Heon <matthew.heon@pm.me>
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Return information about mount_program (fuse-overlayfs)
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We want to get podman info to tell us about the version of
the mount program to help us diagnose issues users are having.
Also if in rootless mode and slirp4netns is installed reveal package
info on slirp4netns.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
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Ensure good defaults on blank c/storage configuration
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If c/storage paths are explicitly set to "" (the empty string) it
will use compiled-in defaults. However, it won't tell us this via
`storage.GetDefaultStoreOptions()` - we just get the empty string
(which can put our defaults, some of which are relative to
c/storage, in a bad spot).
Hardcode a sane default for cases like this. Furthermore, add
some sanity checks to paths, to ensure we don't use relative
paths for core parts of libpod.
Fixes #3952
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
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When we fail to remove a container's SHM, that's an error, and we
need to report it as such. This may be part of our lingering
storage woes.
Also, remove MNT_DETACH. It may be another cause of the storage
removal failures.
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
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When volume options and the local volume driver are specified,
the volume is intended to be mounted using the 'mount' command.
Supported options will be used to volume the volume before the
first container using it starts, and unmount the volume after the
last container using it dies.
This should work for any local filesystem, though at present I've
only tested with tmpfs and btrfs.
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
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We need to be able to track the number of times a volume has been
mounted for tmpfs/nfs/etc volumes. As such, we need a mutable
state for volumes. Add one, with the expected update/save methods
in both states.
There is backwards compat here, in that older volumes without a
state will still be accepted.
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
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In upcoming commits, we're going to turn on the backends for
these fields. Volumes with these set will act fundamentally
differently from other volumes. There will probably be validation
required for each field.
Until now, though, we've freely allowed creation of volumes with
these set - they just did nothing. So we have no idea what could
be in the DB with old volumes.
Change the struct tags so we don't have to worry about old,
unvalidated data. We'll start fresh with new volumes.
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
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Allow suid, exec, dev mount options to cancel nosuid/noexec/nodev
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If I mount, say, /usr/bin into my container - I expect to be able
to run the executables in that mount. Unconditionally applying
noexec would be a bad idea.
Before my patches to change mount options and allow exec/dev/suid
being set explicitly, we inferred the mount options from where on
the base system the mount originated, and the options it had
there. Implement the same functionality for the new option
handling.
There's a lot of performance left on the table here, but I don't
know that this is ever going to take enough time to make it worth
optimizing.
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
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Previously, we explicitly set noexec/nosuid/nodev on every mount,
with no ability to disable them. The 'mount' command on Linux
will accept their inverses without complaint, though - 'noexec'
is counteracted by 'exec', 'nosuid' by 'suid', etc. Add support
for passing these options at the command line to disable our
explicit forcing of security options.
This also cleans up mount option handling significantly. We are
still parsing options in more than one place, which isn't good,
but option parsing for bind and tmpfs mounts has been unified.
Fixes: #3819
Fixes: #3803
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
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libpod: avoid polling container status
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use the inotify backend to be notified on the container exit instead
of polling continuosly the runtime. Polling the runtime slowns
significantly down the podman execution time for short lived
processes:
$ time bin/podman run --rm -ti fedora true
real 0m0.324s
user 0m0.088s
sys 0m0.064s
from:
$ time podman run --rm -ti fedora true
real 0m4.199s
user 0m5.339s
sys 0m0.344s
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
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when cni returns a list of dns servers, we should add them under the
right conditions. the defined conditions are as follows:
- if the user provides dns, it and only it are added.
- if not above and you get a cni name server, it is added and a
forwarding dns instance is created for what was in resolv.conf.
- if not either above, the entries from the host's resolv.conf are used.
Signed-off-by: baude <bbaude@redhat.com>
Signed-off-by: baude <bbaude@redhat.com>
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Re-add volume locks
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This will require a 'podman system renumber' after being applied
to get lock numbers for existing volumes.
Add the DB backend code for rewriting volume configs and use it
for updating lock numbers as part of 'system renumber'.
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
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Add an integration test for systemd in a container
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