test/units/TEST-19-CGROUP.cleanup-slice.sh

   1 #!/usr/bin/env bash
   2 # SPDX-License-Identifier: LGPL-2.1-or-later
   3 set -eux
   4 set -o pipefail
   5
   6 # shellcheck source=test/units/util.sh
   7 . "$(dirname "$0")"/util.sh
   8
   9 export SYSTEMD_LOG_LEVEL=debug
  10
  11 # Create service with KillMode=none inside a slice
  12 cat <<EOF >/run/systemd/system/test19cleanup.service
  13 [Unit]
  14 Description=Test 19 cleanup Service
  15 [Service]
  16 Slice=test19cleanup.slice
  17 Type=exec
  18 ExecStart=sleep infinity
  19 KillMode=none
  20 EOF
  21 cat <<EOF >/run/systemd/system/test19cleanup.slice
  22 [Unit]
  23 Description=Test 19 cleanup Slice
  24 EOF
  25
  26 # Start service
  27 systemctl start test19cleanup.service
  28 assert_rc 0 systemd-cgls /test19cleanup.slice
  29
  30 pid=$(systemctl show --property MainPID --value test19cleanup)
  31 ps "$pid"
  32
  33 # Stop slice
  34 # The sleep process will not be killed because of KillMode=none
  35 # Since there is still a process running under it, the /test19cleanup.slice cgroup won't be removed
  36 systemctl stop test19cleanup.slice
  37
  38 ps "$pid"
  39
  40 # Kill sleep process manually
  41 kill -s TERM "$pid"
  42 while kill -0 "$pid" 2>/dev/null; do sleep 0.1; done
  43
  44 timeout 30 bash -c 'while systemd-cgls /test19cleanup.slice/test19cleanup.service >& /dev/null; do sleep .5; done'
  45 assert_rc 1 systemd-cgls /test19cleanup.slice/test19cleanup.service
  46
  47 # Check that empty cgroup /test19cleanup.slice has been removed
  48 timeout 30 bash -c 'while systemd-cgls /test19cleanup.slice >& /dev/null; do sleep .5; done'
  49 assert_rc 1 systemd-cgls /test19cleanup.slice