wehub-resource-sync
51 lines
1.5 KiB
Python
51 lines
1.5 KiB
Python
import os
|
|
import sys
|
|
from pathlib import Path
|
|
|
|
import pytest
|
|
|
|
# In privileged containers, we expect the following
|
|
# cgroupv1 is disabled
|
|
# cgroupv2 is enabled and mounted on /sys/fs/cgroup
|
|
# the user running tests has read and write access to the cgroup subtree
|
|
# memory and cpu controllers are enabled
|
|
|
|
_MOUNT_FILE_PATH = "/proc/mounts"
|
|
_CGROUP2_PATH = "/sys/fs/cgroup"
|
|
_CTRL_FILE = "cgroup.controllers"
|
|
_EXPECTED_CTRLS = ["memory", "cpu"]
|
|
|
|
|
|
# mount file format:
|
|
# cgroup /sys/fs/cgroup cgroup2 rw,nosuid,nodev,noexec,relatime 0 0
|
|
def test_only_cgroupv2_mounted_rw():
|
|
found_cgroupv2 = False
|
|
found_cgroupv1 = False
|
|
with open(Path(_MOUNT_FILE_PATH)) as f:
|
|
for line in f:
|
|
c = line.split()
|
|
found_cgroupv2 = found_cgroupv2 or (
|
|
c[2] == "cgroup2" and c[1] == _CGROUP2_PATH and "rw" in c[3]
|
|
)
|
|
found_cgroupv1 = found_cgroupv1 or (c[2] == "cgroup")
|
|
assert found_cgroupv2 and not found_cgroupv1
|
|
|
|
|
|
def test_cgroupv2_rw_for_test_user():
|
|
assert os.access(_CGROUP2_PATH, os.R_OK) and os.access(_CGROUP2_PATH, os.W_OK)
|
|
|
|
|
|
def test_cgroupv2_controllers_enabled():
|
|
with open(os.path.join(_CGROUP2_PATH, _CTRL_FILE)) as f:
|
|
enabled = f.readlines()
|
|
assert len(enabled) == 1
|
|
enabled_ctrls = enabled[0].split()
|
|
for expected_ctrl in _EXPECTED_CTRLS:
|
|
assert (
|
|
expected_ctrl in enabled_ctrls
|
|
), f"Expected {expected_ctrl} to be enabled for cgroups2, but it is not"
|
|
|
|
|
|
if __name__ == "__main__":
|
|
sys.exit(pytest.main(["-v", __file__]))
|