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import contextlib
import functools
import itertools
import os
import subprocess
import time
import unittest
from varlink import VarlinkError
MethodNotImplemented = 'org.varlink.service.MethodNotImplemented'
class PodmanTestCase(unittest.TestCase):
"""Hide the sausage making of initializing storage."""
@classmethod
def setUpClass(cls):
if hasattr(PodmanTestCase, 'alpine_process'):
PodmanTestCase.tearDownClass()
def run_cmd(*args):
cmd = list(itertools.chain(*args))
try:
pid = subprocess.Popen(
cmd,
close_fds=True,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
out, err = pid.communicate()
except OSError as e:
print('{}: {}({})'.format(cmd, e.strerror, e.returncode))
except ValueError as e:
print('{}: {}'.format(cmd, e.message))
raise
else:
return out.strip()
tmpdir = os.environ.get('TMPDIR', '/tmp')
podman_args = [
'--storage-driver=vfs',
'--root={}/crio'.format(tmpdir),
'--runroot={}/crio-run'.format(tmpdir),
'--cni-config-dir={}/cni/net.d'.format(tmpdir),
]
run_podman = functools.partial(run_cmd, ['podman'], podman_args)
id = run_podman(['pull', 'alpine'])
setattr(PodmanTestCase, 'alpine_id', id)
run_podman(['pull', 'busybox'])
run_podman(['images'])
run_cmd(['rm', '-f', '{}/alpine_gold.tar'.format(tmpdir)])
run_podman([
'save', '--output', '{}/alpine_gold.tar'.format(tmpdir), 'alpine'
])
PodmanTestCase.alpine_log = open(
os.path.join('/tmp/', 'alpine.log'), 'w')
cmd = ['podman']
cmd.extend(podman_args)
cmd.extend(['run', '-d', 'alpine', 'sleep', '500'])
PodmanTestCase.alpine_process = subprocess.Popen(
cmd,
stdout=PodmanTestCase.alpine_log,
stderr=subprocess.STDOUT,
)
PodmanTestCase.busybox_log = open(
os.path.join('/tmp/', 'busybox.log'), 'w')
cmd = ['podman']
cmd.extend(podman_args)
cmd.extend(['create', 'busybox'])
PodmanTestCase.busybox_process = subprocess.Popen(
cmd,
stdout=PodmanTestCase.busybox_log,
stderr=subprocess.STDOUT,
)
# give podman time to start ctnr
time.sleep(2)
# Close our handle of file
PodmanTestCase.alpine_log.close()
PodmanTestCase.busybox_log.close()
@classmethod
def tearDownClass(cls):
try:
PodmanTestCase.alpine_process.kill()
assert 0 == PodmanTestCase.alpine_process.wait(500)
delattr(PodmanTestCase, 'alpine_process')
PodmanTestCase.busybox_process.kill()
assert 0 == PodmanTestCase.busybox_process.wait(500)
except Exception as e:
print('Exception: {}'.format(e))
raise
@contextlib.contextmanager
def assertRaisesNotImplemented(self):
with self.assertRaisesRegex(VarlinkError, MethodNotImplemented):
yield
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