Traditionally, the path resolution for containers has been resolved on
the *host*; relative to the container's mount point or relative to
specified bind mounts or volumes.
While this works nicely for non-running containers, it poses a problem
for running ones. In that case, certain kinds of mounts (e.g., tmpfs)
will not resolve correctly. A tmpfs is held in memory and hence cannot
be resolved relatively to the container's mount point. A copy operation
will succeed but the data will not show up inside the container.
To support these kinds of mounts, we need to join the *running*
container's mount namespace (and PID namespace) when copying.
Note that this change implies moving the copy and stat logic into
`libpod` since we need to keep the container locked to avoid race
conditions. The immediate benefit is that all logic is now inside
`libpod`; the code isn't scattered anymore.
Further note that Docker does not support copying to tmpfs mounts.
Tests have been extended to cover *both* path resolutions for running
and created containers. New tests have been added to exercise the
tmpfs-mount case.
For the record: Some tests could be improved by using `start -a` instead
of a start-exec sequence. Unfortunately, `start -a` is flaky in the CI
which forced me to use the more expensive start-exec option.
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
Fixes: https://github.com/containers/podman/issues/9582
This PR also adds tests to make sure SELinux labels match the runtime,
or if init is specified works with the correct label.
Add tests for selinux kvm/init labels
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
buildah now supports running under emulation[1] as well as
creating manifests. Use those features to create a multiarch
testimage that can be used to test podman on other arches.
[1] on Fedora 33, this requires the qemu-user-static package
We also build a new :00000001 image, replacing :00000000,
because (sigh) some tests try to run 'true' in the container.
Include instructions on building said image.
Signed-off-by: Ed Santiago <santiago@redhat.com>
Initial validation of using podman-in-podman to create an
old-podman root, then use new-podman to play with the
containers created therein.
Signed-off-by: Ed Santiago <santiago@redhat.com>
Since commit d54478d8eaec, a container's lock is released before
attempting to stop it via the OCI runtime. This opened the window
for various kinds of race conditions. One of them led to #9479 where
the removal+cleanup sequences of a `run --rm` session overlapped with
`rm -af`. Make both execution paths more robust by handling the case of
an already removed container.
Fixes: #9479
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
/dev/stdin should not be treated as "-" to remain compatible with Docker
and to have a more consistent and idiomatic interface.
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
/dev/stdout should not be treated as "-" to remain compatible with
Docker and to have a more consistent and idiomatic interface.
Fixes: #9362
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
Make sure to treat "." and "/." correctly. Both cases imply to copy the
contents of a directory in contrast to the directory. This implies to
unset the KeepDirectoryNames options of the copiah package.
Previously, the code was performing a simple string suffix check which
is not enough since it would match files and directories ending with
".".
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
Make sure to not set an empty $HOME for containers and let it default to
"/".
https://github.com/containers/crun/pull/599 is required to fully
address #9378.
Partially-Fixes: #9378
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
Make sure that Podman's default OCI runtime is passed to Buildah in
`podman build`. In theory, Podman and Buildah should use the same
defaults but the projects move at different speeds and it turns out
we caused a regression in v3.0.
Fixes: #9365
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
Fixes: https://github.com/containers/podman/issues/9290
Currently we still have hard coded --isolation=chroot for podman-remote build.
Implement missing arguments for podman build
Implements
--jobs, --disable-compression, --excludes
Fixes:
MaxPullPushRetries
RetryDuration
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
Add the SECRET keyword to the shell completion test. Also update the
use line for podman secret create to use `NAME` instead of `SECRET`.
This matches the other commands such as network/volume create.
Signed-off-by: Paul Holzinger <paul.holzinger@web.de>
When resolving the workdir of a container, we may need to create unless
the user set it explicitly on the command line. Otherwise, we just do a
presence check. Unfortunately, there was a missing return that lead us
to fall through into attempting to create and chown the workdir. That
caused a regression when running on a read-only root fs.
Fixes: #9230
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
This actually tests conmon, not podman; but that's the whole
point of system tests in the first place: if a problem exists,
we want to fail loudly, no matter whose fault it is.
(I can't get this to fail on my f33 laptop; OP on #9096 claims
it only fails on Ubuntu. We'll see what happens in CI).
Signed-off-by: Ed Santiago <santiago@redhat.com>
This reverts commit 15caebfe561952eaadd4896b7efb56f26724cce5.
The previous behaviour of `--pull` to *always* attempt to pull the image
and error out if the pull failed aligns with Docker. Since Podman aims
at feature parity with Docker, the `--pull` behaviour must match.
Fixes: #9134
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
The `--pull` flag should be using the "pull if newer" pull policy rather
than "pull always". This aligns with what the help message states, what
Buildah does and, according to #9111, what was done before,
Also add a test to prevent future regressions.
Fixes: #9111
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
Change API Handlers to use the same functions that the
local podman uses.
At the same time:
Cleanup and pass proper bindings. Remove cli options from
podman-remote push. Cleanup manifest push.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
Fixup the bindings and the handling of the --external --por and --sort
flags.
The --storage option was renamed --external, make sure we use
external up and down the stack.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
Make sure to write error from conmon on the hijacked http connection.
This fixes issues where errors were not reported on the client side,
for instance, when specified command was not found on the container.
To future generations: I am sorry. The code is complex, and there are
many interdependencies among the concurrent goroutines. I added more
complexity on top but I don't have a good idea of how to reduce
complexity in the available time.
Fixes: #8281
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
A container's workdir can be specified via the CLI via `--workdir` and
via an image config with the CLI having precedence.
Since images have a tendency to specify workdirs without necessarily
shipping the paths with the root FS, make sure that Podman creates the
workdir. When specified via the CLI, do not create the path, but check
for its existence and return a human-friendly error.
NOTE: `crun` is performing a similar check that would yield exit code
127. With this change, however, Podman performs the check and yields
exit code 126. Since this is specific to `crun`, I do not consider it
to be a breaking change of Podman.
Fixes: #9040
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
The --default-mounts-file path was not being handled in
podman build. This will enable it to use for testing.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
- stop: test --all and --ignore (#9051)
- build: test /run/secrets (#8679, but see below)
- sensitive mount points: deal with 'stat' failures
- selinux: confirm useful diagnostics on unknown labels (#8946)
The 'build' test is intended as a fix for #8679, in which
'podman build' does not mount secrets from mounts.conf.
Unfortunately, as of this writing, 'podman build' does
not pass the --default-mounts-file option to buildah,
so there's no reasonable way to test this path. Still,
we can at least confirm /run/secrets on 'podman run'.
The /sys thing is related to #8949: RHEL8, rootless, cgroups v1.
It's just a workaround to get gating tests to pass on RHEL.
Signed-off-by: Ed Santiago <santiago@redhat.com>
if a CNI network is added to the container, use the IP address in that
network instead of hard-coding the slirp4netns default.
commit 5e65f0ba30f3fca73f8c207825632afef08378c1 introduced this
regression.
Closes: https://github.com/containers/podman/issues/9065
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
set the source IP to the slirp4netns address instead of 127.0.0.1 when
using rootlesskit.
Closes: https://github.com/containers/podman/issues/5138
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
I found several problems with container remove
podman-remote rm --all
Was not handled
podman-remote rm --ignore
Was not handled
Return better errors when attempting to remove an --external container.
Currently we return the container does not exists, as opposed to container
is an external container that is being used.
This patch also consolidates the tunnel code to use the same code for
removing the container, as the local API, removing duplication of code
and potential problems.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
Podman defers stopping the container to the runtime, which can take some
time. Keeping the lock while waiting for the runtime to complete the
stop procedure, prevents other commands from acquiring the lock as shown
in #8501.
To improve the user experience, release the lock before invoking the
runtime, and re-acquire the lock when the runtime is finished. Also
introduce an intermediate "stopping" to properly distinguish from
"stopped" containers etc.
Fixes: #8501
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
Docker does not support this, and it is confusing what to do if
the image has more then one tag. We are dropping support for this
in podman 3.0
Fixes: https://github.com/containers/podman/issues/7387
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
