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#!/usr/bin/env python3
# SPDX-License-Identifier: LGPL-2.1-only
#
# cgconfigparser functionality test using a configuration directory
#
# Copyright (c) 2021 Oracle and/or its affiliates.
# Author: Tom Hromatka <tom.hromatka@oracle.com>
#
from cgroup import Cgroup, CgroupVersion
import consts
import ftests
import sys
import os
CPU_CTRL = 'cpu'
MEMORY_CTRL = 'memory'
CGNAME = '018cgconfig'
CFS_PERIOD = '400000'
CFS_QUOTA = '50000'
SHARES = '123'
LIMIT_IN_BYTES = '409600'
SOFT_LIMIT_IN_BYTES = '376832'
CONFIG_FILE = """group
{} {{
{} {{
cpu.cfs_period_us = {};
cpu.cfs_quota_us = {};
cpu.shares = {};
}}
{} {{
memory.limit_in_bytes = {};
memory.soft_limit_in_bytes = {};
}}
}}""".format(CGNAME, CPU_CTRL, CFS_PERIOD, CFS_QUOTA, SHARES,
MEMORY_CTRL, LIMIT_IN_BYTES, SOFT_LIMIT_IN_BYTES)
CONFIG_FILE_DIR = os.path.join(os.getcwd(), '018cgconfig')
CONFIG_FILE_NAME = os.path.join(CONFIG_FILE_DIR, 'cgconfig.conf')
def prereqs(config):
result = consts.TEST_PASSED
cause = None
if CgroupVersion.get_version('cpu') != CgroupVersion.CGROUP_V1:
result = consts.TEST_SKIPPED
cause = 'This test requires the cgroup v1 cpu controller'
return result, cause
if CgroupVersion.get_version('memory') != CgroupVersion.CGROUP_V1:
result = consts.TEST_SKIPPED
cause = 'This test requires the cgroup v1 memory controller'
return result, cause
def setup(config):
os.mkdir(CONFIG_FILE_DIR)
f = open(CONFIG_FILE_NAME, 'w')
f.write(CONFIG_FILE)
f.close()
def test(config):
Cgroup.configparser(config, load_dir=CONFIG_FILE_DIR)
Cgroup.get_and_validate(config, CGNAME, 'cpu.cfs_period_us', CFS_PERIOD)
Cgroup.get_and_validate(config, CGNAME, 'cpu.cfs_quota_us', CFS_QUOTA)
Cgroup.get_and_validate(config, CGNAME, 'cpu.shares', SHARES)
Cgroup.get_and_validate(config, CGNAME, 'memory.limit_in_bytes',
LIMIT_IN_BYTES)
Cgroup.get_and_validate(config, CGNAME, 'memory.soft_limit_in_bytes',
SOFT_LIMIT_IN_BYTES)
return consts.TEST_PASSED, None
def teardown(config):
Cgroup.delete(config, CPU_CTRL, CGNAME)
Cgroup.delete(config, MEMORY_CTRL, CGNAME)
os.remove(CONFIG_FILE_NAME)
os.rmdir(CONFIG_FILE_DIR)
def main(config):
[result, cause] = prereqs(config)
if result != consts.TEST_PASSED:
return [result, cause]
try:
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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