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#!/bin/env python3
# crun - OCI runtime written in C
#
# Copyright (C) 2017, 2018, 2019 Giuseppe Scrivano <giuseppe@scrivano.org>
# crun is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# crun is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with crun. If not, see <http://www.gnu.org/licenses/>.
import json
import subprocess
import os
from tests_utils import *
def test_simple_delete():
conf = base_config()
conf['process']['args'] = ['/init', 'pause']
add_all_namespaces(conf)
out, container_id = run_and_get_output(conf, detach=True, hide_stderr=True)
if out != "":
return -1
state = None
freezerCreated = False
cleanup_result = 0
try:
state = json.loads(run_crun_command(["state", container_id]))
if state['status'] != "running":
return -1
if state['id'] != container_id:
return -1
finally:
if state is not None:
if not os.path.exists("/sys/fs/cgroup/cgroup.controllers") and os.access('/sys/fs/cgroup/freezer/', os.W_OK):
# cgroupv1 freezer can easily simulate stuck or breaking `crun delete -f <cid>`
# this should be only done on cgroupv1 systems
if not os.path.exists("/sys/fs/cgroup/freezer/frozen/"):
freezerCreated = True
os.makedirs("/sys/fs/cgroup/freezer/frozen/")
with open('/sys/fs/cgroup/freezer/frozen/tasks', 'w') as f:
f.write(str(state['pid']))
with open('/sys/fs/cgroup/freezer/frozen/freezer.state', 'w') as f:
f.write('FROZEN')
try:
output = run_crun_command_raw(["delete", "-f", container_id])
except subprocess.CalledProcessError as exc:
logger.error("Status : FAIL %s %s", exc.returncode, exc.output)
cleanup_result = -1
else:
# this is expected for cgroup v1 so ignore
# also ignore profiling messages from coverage builds
if not output or b'Device or resource busy' in output or b'profiling:' in output:
# if output is empty or expected error or profiling output, pass
pass
else:
# anything else is error
logger.error(output)
cleanup_result = -1
if freezerCreated:
os.rmdir("/sys/fs/cgroup/freezer/frozen/")
return cleanup_result
def test_multiple_containers_delete():
"""Delete multiple containers with a regular expression"""
conf = base_config()
conf['process']['args'] = ['/init', 'pause']
add_all_namespaces(conf)
out_test1, container_id_test1 = run_and_get_output(conf, detach=True, hide_stderr=True)
if out_test1 != "":
return -1
out_test2, container_id_test2 = run_and_get_output(conf, detach=True, hide_stderr=True)
if out_test2 != "":
return -1
cleanup_result = 0
try:
state_test1 = json.loads(run_crun_command(["state", container_id_test1]))
if state_test1['status'] != "running":
return -1
if state_test1['id'] != container_id_test1:
return -1
state_test2 = json.loads(run_crun_command(["state", container_id_test2]))
if state_test2['status'] != "running":
return -1
if state_test2['id'] != container_id_test2:
return -1
finally:
try:
output = run_crun_command_raw(["delete", "-f", "--regex", "test-*"])
except subprocess.CalledProcessError as exc:
logger.error("Status : FAIL %s %s", exc.returncode, exc.output)
cleanup_result = -1
return cleanup_result
def test_help_delete():
out = run_crun_command(["delete", "--help"])
if "Usage: crun [OPTION...] delete CONTAINER" not in out:
return -1
return 0
all_tests = {
"test_simple_delete" : test_simple_delete,
"test_multiple_containers_delete" : test_multiple_containers_delete,
"test_help_delete": test_help_delete,
}
if __name__ == "__main__":
tests_main(all_tests)
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