when running in systemd mode on cgroups v1, make sure the
/sys/fs/cgroup/systemd/release_agent is masked otherwise the container
is able to modify it and execute scripts on the host.
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
if the cgroup manager is set to systemd, detect if dbus is available,
otherwise fallback to --cgroup-manager=cgroupfs.
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
Everything else is a flag to mount, but "uid" and "gid" are not.
We need to parse them out of "o" and handle them separately.
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
make sure the user overrides are stored in the configuration file when
first created.
Closes: https://github.com/containers/libpod/issues/2659
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
Previously, when `podman run` encountered a volume mount without
separate source and destination (e.g. `-v /run`) we would assume
that both were the same - a bind mount of `/run` on the host to
`/run` in the container. However, this does not match Docker's
behavior - in Docker, this makes an anonymous named volume that
will be mounted at `/run`.
We already have (more limited) support for these anonymous
volumes in the form of image volumes. Extend this support to
allow it to be used with user-created volumes coming in from the
`-v` flag.
This change also affects how named volumes created by the
container but given names are treated by `podman run --rm` and
`podman rm -v`. Previously, they would be removed with the
container in these cases, but this did not match Docker's
behaviour. Docker only removed anonymous volumes. With this patch
we move to that model as well; `podman run -v testvol:/test` will
not have `testvol` survive the container being removed by `podman
rm -v`.
The sum total of these changes let us turn on volume removal in
`--rm` by default.
Fixes: #4276
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
When a container is created with a given OCI runtime, but then it
is uninstalled or removed from the configuration file, Libpod
presently reacts very poorly. The EvictContainer code can
potentially remove these containers, but we still can't see them
in `podman ps` (aside from the massive logrus.Errorf messages
they create).
Providing a minimal OCI runtime implementation for missing
runtimes allows us to behave better. We'll be able to retrieve
containers from the database, though we still pop up an error for
each missing runtime. For containers which are stopped, we can
remove them as normal.
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
network statistics cannot be collected for rootless network devices with
the current implementation. for now, we return nil so that stats will
at least for users.
Fixes:#4268
Signed-off-by: baude <bbaude@redhat.com>
The json field is called `Image` while the go field is called `ImageID`,
tricking users into filtering for `Image` which ultimately results in an
error. Hence, rename the field to `Image` to align json and go.
To prevent podman users from regressing, rename `Image` to `ImageID` in
the specified filters. Add tests to prevent us from regressing. Note
that consumers of the go API that are using `ImageID` are regressing;
ultimately we consider it to be a bug fix.
Fixes: #4193
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
Also, ensure that we don't try to mount them without root - it
appears that it can somehow not error and report that mount was
successful when it clearly did not succeed, which can induce this
case.
We reuse the `--force` flag to indicate that a volume should be
removed even after unmount errors. It seems fairly natural to
expect that --force will remove a volume that is otherwise
presenting problems.
Finally, ignore EINVAL on unmount - if the mount point no longer
exists our job is done.
Fixes: #4247Fixes: #4248
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
In some cases, conmon can fail without writing logs. Change the wording
of the error message from
"error reading container (probably exited) json message"
to
"container create failed (no logs from conmon)"
to have a more helpful error message that is more consistent with other
errors at that stage of execution.
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
Previously, `podman checkport restore` with exported containers,
when told to create a new container based on the exported
checkpoint, would create a new container, with a new container
ID, but not reset CGroup path - which contained the ID of the
original container.
If this was done multiple times, the result was two containers
with the same cgroup paths. Operations on these containers would
this have a chance of crossing over to affect the other one; the
most notable was `podman rm` once it was changed to use the --all
flag when stopping the container; all processes in the cgroup,
including the ones in the other container, would be stopped.
Reset cgroups on restore to ensure that the path matches the ID
of the container actually being run.
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
This is a horrible hack to work around issues with Fedora 31, but
other distros might need it to, so we'll move it upstream.
I do not recommend this functionality for general use, and the
manpages and other documentation will reflect this. But for some
upgrade cases, it will be the only thing that allows for a
working system.
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
For future work, we need multiple implementations of the OCI
runtime, not just a Conmon-wrapped runtime matching the runc CLI.
As part of this, do some refactoring on the interface for exec
(move to a struct, not a massive list of arguments). Also, add
'all' support to Kill and Stop (supported by runc and used a bit
internally for removing containers).
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
when runc returns an error about not being v2 complient, catch the error
and logrus an actionable message for users.
Signed-off-by: baude <bbaude@redhat.com>
This requires updating all import paths throughout, and a matching
buildah update to interoperate.
I can't figure out the reason for go.mod tracking
github.com/containers/image v3.0.2+incompatible // indirect
((go mod graph) lists it as a direct dependency of libpod, but
(go list -json -m all) lists it as an indirect dependency),
but at least looking at the vendor subdirectory, it doesn't seem
to be actually used in the built binaries.
Signed-off-by: Miloslav Trmač <mitr@redhat.com>
This ensures that containers that didn't require an evict will be
dealt with normally, and we only break out evict for containers
that refuse to be removed by normal means.
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
fixes a segfault when slirp4netns is not installed and the slirp sync
pipe is not created.
Closes: https://github.com/containers/libpod/issues/4113
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
A true result from reexec.Init() isn't an error, but it indicates that
main() should exit with a success exit status.
Signed-off-by: Nalin Dahyabhai <nalin@redhat.com>
Add ability to evict a container when it becomes unusable. This may
happen when the host setup changes after a container creation, making it
impossible for that container to be used or removed.
Evicting a container is done using the `rm --force` command.
Signed-off-by: Marco Vedovati <mvedovati@suse.com>
Giuseppe Scrivano
OpenShift Merge Robot
Matthew Heon
Peter Hunt
Matthew Heon
baude
Valentin Rothberg
Daniel J Walsh
Nalin Dahyabhai
Qi Wang
Miloslav Trmač
Mrigank Krishan
Marco Vedovati