do not automatically enable the controllers for the last path
component. It is necessary as once there are enabled controllers in a
cgroup, it won't possible to add processes to it.
Fix conmon being moved to the correct cgroup path when using
--cgroup-manager cgroupfs.
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
when the container is running in a user namespace, check if gid=5 is
available, otherwise drop the option gid=5 for /dev/pts.
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
be sure to load all the existing handlers, so that they can also be
freed in addition to the handlers we treat differently.
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
the commit and pull varlink endpoints were not working correctly when
'more' was not being specified.
Fixes: #3317Fixes: #3318Fixes: #3526
Signed-off-by: baude <bbaude@redhat.com>
drop the limitation of not supporting creating new cgroups v2 paths.
Every controller enabled /sys/fs/cgroup will be propagated down to the
created path. This won't work for rootless cgroupsv2, but it is not
an issue for now, as this code is used only by CRI-O.
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
add a simple way to copy ulimit values from the host.
if --ulimit host is used then the current ulimits in place are copied
to the container.
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
It is not correct to rely on specific location of the podman binary.
In most cases it is /usr/bin/podman, but sometimes is not (e.g. in
system tests). Use /proc/self/exe instead of hardcoded path.
Signed-off-by: Danila Kiver <danila.kiver@mail.ru>
By default, podman points PIDFile in generated unit file to non-existent
location. As a result, the unit file, generated by podman, is broken:
an attempt to start this unit without prior modification results in a crash,
because systemd can not find the pidfile of service's main process.
Fix the value of "PIDFile" and add a system test for this case.
Signed-off-by: Danila Kiver <danila.kiver@mail.ru>
unfortunately rootless won't work without cgo, as most of the
implementation is in C, but at least allow to build libpod.
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
some podman commands do not require the use of a container/image store.
in those cases, it is more effecient to not open the store, because that
results in having to also close the store which can be costly when the
system is under heavy write I/O loads.
Signed-off-by: baude <bbaude@redhat.com>
Currently pause process blocks all signals which may cause its
termination, including SIGTERM. This behavior hangs init(1) during
system shutdown, until pause process gets SIGKILLed after some grace
period. To avoid this hanging, SIGTERM is excluded from list of blocked
signals.
Fixes#3440
Signed-off-by: Danila Kiver <danila.kiver@mail.ru>
at least on Fedora 30 it creates the /run/user/UID directory for the
user logged in via ssh.
This needs to be done very early so that every other check when we
create the default configuration file will point to the correct
location.
Closes: https://github.com/containers/libpod/issues/3410
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
This is an initial implementation of cgroup v2 support for
pkg/cgroups. It currently works with crun, with this patch:
https://github.com/giuseppe/crun/pull/49).
It adds the pieces for:
- set PID limit to 1
- retrieve stats so that "podman stats" work.
the only missing part is the support for reading per
CPU stats (that is cpuacct.usage_percpu on cgroup v1), so for now it
always returns an empty result.
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
provide a package for managing cgroups. This is not supposed to be a
complete implementation with all the features supported by cgroups,
but it is a minimal implementation designed around what libpod needs
and it is currently using.
For example, it is currently possible to Apply only the pids limit,
as it is used by libpod for stopping containers, any other Apply will
just fail.
The main goal here is to have a minimal library where we have full
control, so we can start playing with cgroup v2.
When the need arises, we can add more features.
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
When Host IP is not set in podman-remote.conf, error is printed out.
When Username is not set in podman-remote.conf, default username is used.
Signed-off-by: Ashley Cui <ashleycui16@gmail.com>
the compilation demands of having libpod in main is a burden for the
remote client compilations. to combat this, we should move the use of
libpod structs, vars, constants, and functions into the adapter code
where it will only be compiled by the local client.
this should result in cleaner code organization and smaller binaries. it
should also help if we ever need to compile the remote client on
non-Linux operating systems natively (not cross-compiled).
Signed-off-by: baude <bbaude@redhat.com>
To avoid unnecessary warnings and errors in the future I'd like to
propose building all cgo related sources with `-Wall -Werror`. This
commit fixes some warnings which came up in `shm_lock.c`, too.
Signed-off-by: Sascha Grunert <sgrunert@suse.com>
when using podman-remote on windows, the bridge format must account for
how windows deals with escape quoting. in this case, it does not need
any.
also, reduced duplicated code around generating the bridge endpoint for
the unix and windows platforms.
Signed-off-by: baude <bbaude@redhat.com>
The second argument of `execlp` should be of type `char *`, so we need
to add an additional argument there.
Signed-off-by: Sascha Grunert <sgrunert@suse.com>
