Create a new session key ring '_ses' for every container. This avoids sharing
the key structure with the process that created the container and the
container inherits from.
This patch fixes it init and exec.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
By adding detach to runc the container process is the only thing running
on the system is the containers process.
This allows better usage of memeory and no runc process being long
lived. With this addition you also need a delete command because the
detached container will not be able to remove state and the left over
cgroups directories.
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
Add some further (not critical, since Docker does this already)
validation to systemd slice names, to make sure users don't get cryptic
errors.
Signed-off-by: Aleksa Sarai <asarai@suse.com>
Marshall the raw objects for the sync pipes so that no new line chars
are left behind in the pipe causing errors.
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
This leaves out the internal conversions as we may need to consider
docker backward compatibility for those changes.
Signed-off-by: Mrunal Patel <mrunalp@gmail.com>
Rather than using '/' to denote hierarchy in slice names, systemd uses
'-' in an odd way. This results in runC incorrectly assuming that
certain kernel features are missing (and using inconsistent paths for
the cgroups not supported by systemd), because the "subsystem path" used
is not the one that systemd has created. Fix all of this by properly
expanding slice names.
Signed-off-by: Aleksa Sarai <asarai@suse.com>
There were issues where a process could die before pausing completed
leaving the container in an inconsistent state and unable to be
destoryed. This makes sure that if the container is paused and the
process is dead it will unfreeze the cgroup before removing them.
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
Modify the memory cgroup code such that kmem is not managed by Set(), in
order to allow updating of memory constraints for containers by Docker.
This also removes the need to make memory a special case cgroup.
Signed-off-by: Aleksa Sarai <asarai@suse.com>
For existing consumers of libconatiner to not require cwd inside the
libcontainer code. This can be done at the runc level and is already
evaluated there.
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
Set `-1` doesn't mean disable swap, disable swap means you
can't use swap memory, set `-1` really means you can use
unlimited swap memory.
Signed-off-by: Qiang Huang <h.huangqiang@huawei.com>
Stefan Berger
Michael Crosby
Mrunal Patel
Mike Brown
Qiang Huang
Aleksa Sarai
Alexander Morozov
Mrunal Patel
Alexander Morozov
Doug Davis
rajasec
Marcos Nils
Jessica Frazelle