GetMounts is very cpu-expensive. I'll change other funcs in this package
to reuse code from GetCgroupMounts later.
Signed-off-by: Alexander Morozov <lk4d4@docker.com>
Bug was introduced in #250
According to: http://man7.org/linux/man-pages/man5/proc.5.html
36 35 98:0 /mnt1 /mnt2 rw,noatime master:1 - ext3 /dev/root rw,errors=continue
(1)(2)(3) (4) (5) (6) (7) (8) (9) (10) (11)
...
(7) optional fields: zero or more fields of the form
"tag[:value]".
The 7th field is optional. We should skip it when parsing mount info.
Signed-off-by: Qiang Huang <h.huangqiang@huawei.com>
This is needed because for nested containers cgroups. Without this patch
they creating unnecessary intermediate cgroup like:
/sys/fs/cgroup/memory/system.slice/docker-9409d9f0b68fb9e9d7d532d5b3f35e7c7f9cca1312af392ae3b28436f1f2998f.scope/system.slice/docker-9409d9f0b68fb9e9d7d532d5b3f35e7c7f9cca1312af392ae3b28436f1f2998f.scope/docker/908ebcc9c13584a14322ec070bd971e0de62f126c0cd95c079acdb99990ad3a3
It is because in /proc/self/cgroup we see paths from host, and they don't
exist in container.
Signed-off-by: Alexander Morozov <lk4d4@docker.com>
Before name=systemd cgroup was mounted inside container to
/sys/fs/cgroup/name=systemd, which is wrong, it should be
/sys/fs/cgroup/systemd
Signed-off-by: Alexander Morozov <lk4d4@docker.com>
Alexander Morozov
Alex Dadgar
Jimmi Dyson
David Calavera
Mrunal Patel
Andrey Vagin
Qiang Huang
Mrunal Patel
Michael Crosby