Check value of semaphores when incrementing to ensure we never go
beyond 1, preserving mutex invariants.
Also, add cleanup code to the lock tests, ensuring that we never
leave the locks in a bad state after a test. We aren't destroying
and recreating the SHM every time, so we have to be careful not
to leak state between test runs.
Signed-off-by: Matthew Heon <matthew.heon@gmail.com>
Add support for executing an init binary as PID 1 in a container to
forward signals and reap processes. When the `--init` flag is set for
podman-create or podman-run, the init binary is bind-mounted to
`/dev/init` in the container and "/dev/init --" is prepended to the
container's command.
The default base path of the container-init binary is `/usr/libexec/podman`
while the default binary is catatonit [1]. This default can be changed
permanently via the `init_path` field in the `libpod.conf` configuration
file (which is recommended for packaging) or temporarily via the
`--init-path` flag of podman-create and podman-run.
[1] https://github.com/openSUSE/catatonitFixes: #1670
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
vendor in latest containers/storage which contains a fix for when
a filesystem that overlayfs is on is ENOSPC.
adding pgzip/compress as a new dep for c/s
Signed-off-by: baude <bbaude@redhat.com>
Currently completions do not work. podman generate kube and podman play kube
completions broke this.
Also fixed podman import to work properly.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
Runc does not produce helpful error messages when the container's
command is not found, so print the command ourselves.
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
Casting integers to strings is definitely not correct, so let the
standard library handle matters.
Fixes#2066
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
A common failure with people building container images is the
creation of large sparse files, particularly useradd creating
the lastlog file.
This PR Documents the failures.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
Currently if the user installs runc in an alternative path
podman run uses it but podman build does not.
This patch will pass the default oci runtime to be used by podman
down to the image builder.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
Now that the correct distribution CRIU packages are installed the
checkpoint/restore tests should no longer fail. This re-enables the
disabled tests on Fedora.
Signed-off-by: Adrian Reber <areber@redhat.com>
We had two problems with /dev/shm, first, you mount the
container read/only then /dev/shm was mounted read/only.
This is a bug a tmpfs directory should be read/write within
a read-only container.
The second problem is we were ignoring users mounted /dev/shm
from the host.
If user specified
podman run -d -v /dev/shm:/dev/shm ...
We were dropping this mount and still using the internal mount.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
when testing rootless containers, it is more reliable to stop
a container with a zero timeout than kill a container. We made
this change in non-rootless tests as well. When IO or CPU are
taxed, it avoids a situation where the kill signal is sent but the
container has not been able to update its status when a subsequent
action occurs.
Signed-off-by: baude <bbaude@redhat.com>
Allow multiple alias for listing containers and images.
Also fix documentation for umount and unmount
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
ParseIDMap function was extracted to idtools in
https://github.com/containers/storage/pull/236
it is already used in containers/storage and buildah, it should be used in
libpod as well.
Signed-off-by: Šimon Lukašík <isimluk@fedoraproject.org>
Podman will search through the directory and will add any device
nodes that it finds. If no devices are found we return an error.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
When running podman top, the processes collected can exit befor
psgo gets information on the processes. This can cause some weird
errors and creates some CI flakes.
psgo now properly ignores this situation rather then returning errors
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
Fix usage of export when rootless containers are used without vfs. We
join the conmon process namespaces as the container is running in a
different one.
There can be a problem if the user specify a different path for the
conmon process, and then the file is deleted. In this case podman
won't be able to find the conmon process to join.
Closes: https://github.com/containers/libpod/issues/2027
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
Add the possibility to join directly the user and mount namespace
without looking up the parent of the user namespace.
We need this in order to be able the conmon process, as the mount
namespace is kept alive only there.
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
For all in testing involved distribution a new enough CRIU exists as a
package.
Fedora provides CRIU packages directly. For CentOS/RHEL there is a COPR
with the latest CRIU version and for Ubuntu there is a PPA for the
latest CRIU version. Let's use these packages and fall back to building
from git if necessary.
Signed-off-by: Adrian Reber <adrian@lisas.de>
