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#!/usr/bin/env python3
# SPDX-License-Identifier: LGPL-2.1-only
#
# Advanced cgconfigparser functionality test - systemd configurations
#
# Copyright (c) 2023 Oracle and/or its affiliates.
# Author: Kamalesh Babulal <kamalesh.babulal@oracle.com>
from systemd import Systemd
from process import Process
from cgroup import Cgroup
from run import RunError
import consts
import ftests
import time
import sys
import os
CONTROLLER = 'cpu'
SYSTEMD_CGNAME = '060_cg_in_scope'
OTHER_CGNAME = '060_cg_not_in_scope'
SLICE = 'libcgtests.slice'
SCOPE = 'test060.scope'
CONFIG_FILE_NAME = os.path.join(os.getcwd(), '060cgconfig.conf')
CONFIGURATIONS = [
# [ 'systemd configuration file', 'Excepted error substring']
['systemd {\n}', 'Error: failed to parse file'],
['systemd {\n\tslice = libcgroup;\n}',
'Error: Invalid systemd configuration slice value libcgroup'],
['systemd {\n\tscope = test060;\n}',
'Error: Invalid systemd configuration scope value test060'],
['systemd {\n\tslice = libcgroup.slice;\n}',
'Error: Invalid systemd setting, missing scope name'],
['systemd {\n\tscope = test060.scope;\n}',
'Error: Invalid systemd setting, missing slice name'],
['systemd {\n\tsetdefault = yes;\n}',
'Error: Invalid systemd setting, missing slice name'],
['systemd {\n\tpid = 123;\n}',
'Error: Invalid systemd setting, missing slice name'],
['systemd {\n\tInvalid = Invalid;\n}',
'Error: Invalid systemd configuration Invalid'],
['systemd {\n\tslice = libcgroup.slice;\n\tsetdefault = yes;\n\t}',
'Error: Invalid systemd setting, missing scope name'],
['systemd {\n\tscope = test060.scope;\n\tsetdefault = yes;\n\t}',
'Error: Invalid systemd setting, missing slice name'],
['systemd {\n\tslice = libcgroup.slice;\n\tscope = test060.scope;\n\t'
'setdefault = invalid;\n\t}',
'Error: Invalid systemd configuration setdefault'],
['systemd {\n\tslice = libcgroup.slice;\n\tscope = test060.scope;\n\t'
'setdefault = yes;\n\tpid = abc;\n}',
'Error: Invalid systemd configuration pid'],
]
def prereqs(config):
result = consts.TEST_PASSED
cause = None
if config.args.container:
result = consts.TEST_SKIPPED
cause = 'This test cannot be run within a container'
return result, cause
def setup(config):
pass
def write_conf_file(config, configurations):
f = open(CONFIG_FILE_NAME, 'w')
f.write(configurations)
f.close()
def test_invalid_configurations(config):
result = consts.TEST_PASSED
cause = None
# Try parsing invalid systemd configurations from CONFIGURATION table
# and none of them is excepted to pass.
for configuration in CONFIGURATIONS:
write_conf_file(config, configuration[0])
try:
Cgroup.configparser(config, load_file=CONFIG_FILE_NAME)
except RunError as re:
if configuration[1] not in re.stdout:
result = consts.TEST_FAILED
tmp_cause = (
'Unexpected error {}, while parsing configuration:'
'\n{}'.format(re.stdout, configuration[0])
)
cause = '\n'.join(filter(None, [cause, tmp_cause]))
else:
result = consts.TEST_FAILED
tmp_cause = (
'Creation of systemd default slice/scope, erroneously succeeded with'
'configuration:\n{}'.format(configuration[0])
)
cause = '\n'.join(filter(None, [cause, tmp_cause]))
return result, cause
def test(config):
result = consts.TEST_PASSED
cause = None
result, cause = test_invalid_configurations(config)
if result == consts.TEST_FAILED:
return result, cause
pid = Systemd.write_config_with_pid(config, CONFIG_FILE_NAME, SLICE, SCOPE)
# Pass a valid configuration to the parser
Cgroup.configparser(config, load_file=CONFIG_FILE_NAME)
if not Cgroup.exists(config, CONTROLLER, os.path.join(SLICE, SCOPE), ignore_systemd=True):
result = consts.TEST_FAILED
cause = 'Failed to create systemd slice/scope'
return result, cause
# It's invalid to pass the same configuration file twice. The values
# were already read and slice/scope cgroups were created, unless
# something has gone wrong, this should fail.
try:
Cgroup.configparser(config, load_file=CONFIG_FILE_NAME)
except RunError as re:
if 'already exists' not in re.stdout:
result = consts.TEST_FAILED
cause = 'Unexpected error {}'.format(re.stdout)
else:
result = consts.TEST_FAILED
cause = 'Creation of systemd default slice/scope erroneously succeeded'
# killing the pid should remove the scope cgroup too.
Process.kill(config, pid)
# Let's pause and wait for the systemd to remove the scope.
time.sleep(1)
if Cgroup.exists(config, CONTROLLER, os.path.join(SLICE, SCOPE), ignore_systemd=True):
result = consts.TEST_FAILED
cause = 'Systemd failed to remove the scope {}'.format(SCOPE)
return result, cause
def teardown(config):
# The scope is already removed, when the task was killed.
try:
Systemd.remove_scope_slice_conf(config, SLICE, SCOPE, CONTROLLER, CONFIG_FILE_NAME)
except RunError as re:
if 'scope not loaded' not in re.stderr:
raise re
def main(config):
[result, cause] = prereqs(config)
if result != consts.TEST_PASSED:
return [result, cause]
try:
result = consts.TEST_FAILED
setup(config)
[result, cause] = test(config)
finally:
teardown(config)
return [result, cause]
if __name__ == '__main__':
config = ftests.parse_args()
# this test was invoked directly. run only it
config.args.num = int(os.path.basename(__file__).split('-')[0])
sys.exit(ftests.main(config))
# vim: set et ts=4 sw=4:
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