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>
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>
We want to default to secure when running containers as root,
in rootless, we need to change the default if the system does not
support cgroup v1.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
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>
The Expect function does not return a result of True or False
depending on the value of the first instance, but instead requires
a comparison using ".To(", so change to use ".To(ContainSubstring("
Signed-off-by: gabi beyer <gabrielle.n.beyer@intel.com>
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>
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>
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>
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>
when removing a podman network, we need to make sure we delete the
network interface if one was ever created (by running a container).
also, when removing networks, we check if any containers are using the
network. if they are, we error out unless the user provides a 'force'
option which will remove the containers in question.
Signed-off-by: baude <bbaude@redhat.com>
When enabled, it's desired for the podman-varlink process to startup on
boot or upon socket-activation, whichever happens first. However,
with `KillMode=none` systemd will never kill any podman-varlink
processes. This makes it easily possible for multiple podman-varlink
processes to be running, and fight each other to service a single socket.
---
For example:
Prior to this commit, this will result in four podman-varlink processes
being run:
```
systemctl enable io.podman.socket
systemctl enable io.podman.service
systemctl start io.podman.socket
systemctl start io.podman.service
systemctl start io.podman.service
```
Fix this by setting `KillMode=process` and `TimeoutStopSec=30` (default
is 90). This results in podman-varlink exiting on its own after a minute
of being idle (--timeout=60000). Alternatively, systemd will manage the
service stop by sending a SIGTERM, then if podman-varlink has not exited
within `TimeoutStopSec`, a SIGKILL will be sent.
Signed-off-by: Chris Evich <cevich@redhat.com>
After my last update for the 'Shortcomings of Rootless Podman' was merged,
I spotted a few grammatical nits that this corrects.
Signed-off-by: TomSweeneyRedHat <tsweeney@redhat.com>
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>
