test/units/testsuite-19.sh

   1 #!/usr/bin/env bash
   2 # SPDX-License-Identifier: LGPL-2.1-or-later
   3 set -eux
   4 set -o pipefail
   5
   6 if grep -q cgroup2 /proc/filesystems ; then
   7     systemd-run --wait --unit=test0.service -p "DynamicUser=1" -p "Delegate=" \
   8                 test -w /sys/fs/cgroup/system.slice/test0.service/ -a \
   9                 -w /sys/fs/cgroup/system.slice/test0.service/cgroup.procs -a \
  10                 -w /sys/fs/cgroup/system.slice/test0.service/cgroup.subtree_control
  11
  12     systemd-run --wait --unit=test1.service -p "DynamicUser=1" -p "Delegate=memory pids" \
  13                 grep -q memory /sys/fs/cgroup/system.slice/test1.service/cgroup.controllers
  14
  15     systemd-run --wait --unit=test2.service -p "DynamicUser=1" -p "Delegate=memory pids" \
  16                 grep -q pids /sys/fs/cgroup/system.slice/test2.service/cgroup.controllers
  17
  18     # "io" is not among the controllers enabled by default for all units, verify that
  19     grep -qv io /sys/fs/cgroup/system.slice/cgroup.controllers
  20
  21     # Run a service with "io" enabled, and verify it works
  22     systemd-run --wait --unit=test3.service -p "IOAccounting=yes" -p "Slice=system-foo-bar-baz.slice"  \
  23                 grep -q io /sys/fs/cgroup/system.slice/system-foo.slice/system-foo-bar.slice/system-foo-bar-baz.slice/test3.service/cgroup.controllers
  24
  25     # We want to check if "io" is removed again from the controllers
  26     # list. However, PID 1 (rightfully) does this asynchronously. In order
  27     # to force synchronization on this, let's start a short-lived service
  28     # which requires PID 1 to refresh the cgroup tree, so that we can
  29     # verify that this all works.
  30     systemd-run --wait --unit=test4.service true
  31
  32     # And now check again, "io" should have vanished
  33     grep -qv io /sys/fs/cgroup/system.slice/cgroup.controllers
  34 else
  35     echo "Skipping TEST-19-DELEGATE, as the kernel doesn't actually support cgroup v2" >&2
  36 fi
  37
  38 echo OK >/testok
  39
  40 exit 0