def __enter__(self):
rc, out, err = execCmd([_SSH_AGENT.cmd], raw=True)
if rc != 0:
raise V2VError('Error init ssh-agent, exit code: %r'
', out: %r, err: %r' %
(rc, out, err))
m = self._ssh_auth_re.match(out)
# looking for: SSH_AUTH_SOCK=/tmp/ssh-VEE74ObhTWBT/agent.29917
self._auth = {m.group(1): m.group(2)}
self._agent_pid = m.group(3)
try:
rc, out, err = execCmd([_SSH_ADD.cmd], env=self._auth)
except:
self._kill_agent()
raise
if rc != 0:
# 1 = general fail
# 2 = no agnet
if rc != 2:
self._kill_agent()
raise V2VError('Error init ssh-add, exit code: %r'
', out: %r, err: %r' %
(rc, out, err))
def testWriteLargeData(self):
data = """The Doctor: Davros, if you had created a virus in your
laboratory, something contagious and infectious
that killed on contact, a virus that would
destroy all other forms of life; would you allow
its use?
Davros: It is an interesting conjecture.
The Doctor: Would you do it?
Davros: The only living thing... The microscopic organism...
reigning supreme... A fascinating idea.
The Doctor: But would you do it?
Davros: Yes; yes. To hold in my hand, a capsule that
contained such power. To know that life and death on
such a scale was my choice. To know that the tiny
pressure on my thumb, enough to break the glass,
would end everything. Yes! I would do it! That power
would set me up above the gods! And through the
Daleks, I shall have that power! """
# (C) BBC - Doctor Who
data = data * 100
p = commands.execCmd([EXT_CAT], sync=False)
self.log.info("Writing data to std out")
p.stdin.write(data)
p.stdin.flush()
self.log.info("Written data reading")
self.assertEqual(p.stdout.read(len(data)), data)
def snapshotScheduleDisable():
command = [_snapSchedulerPath.cmd, "disable_force"]
rc, out, err = commands.execCmd(command)
if rc not in [0, SNAP_SCHEDULER_ALREADY_DISABLED_RC]:
raise ge.GlusterDisableSnapshotScheduleFailedException(
rc)
return True
def _kill_agent(self):
rc, out, err = execCmd([_SSH_AGENT.cmd, '-k'],
env={'SSH_AGENT_PID': self._agent_pid})
if rc != 0:
logging.error('Error killing ssh-agent (PID=%r), exit code: %r'
', out: %r, err: %r' %
(self._agent_pid, rc, out, err))
def volumeStatvfs(volumeName, host=GLUSTER_VOL_HOST,
port=GLUSTER_VOL_PORT,
protocol=GLUSTER_VOL_PROTOCOL):
module = "vdsm.gluster.gfapi"
command = [sys.executable, '-m', module, '-v', volumeName,
'-p', str(port), '-H', host, '-t', protocol, '-c', 'statvfs']
# to include /usr/share/vdsm in python path
env = os.environ.copy()
env['PYTHONPATH'] = "%s:%s" % (
env.get("PYTHONPATH", ""), constants.P_VDSM)
env['PYTHONPATH'] = ":".join(map(os.path.abspath,
env['PYTHONPATH'].split(":")))
rc, out, err = commands.execCmd(command, raw=True, env=env)
if rc != 0:
raise ge.GlfsStatvfsException(rc, [out], [err])
res = json.loads(out)
return os.statvfs_result((res['f_bsize'],
res['f_frsize'],
res['f_blocks'],
res['f_bfree'],
res['f_bavail'],
res['f_files'],
res['f_ffree'],
res['f_favail'],
res['f_flag'],
res['f_namemax']))
def testExec(self):
"""
Tests that execCmd execs and returns the correct ret code
"""
ret, out, err = commands.execCmd([EXT_ECHO])
self.assertEqual(ret, 0)
def run_dd(self, args):
cmd = [constants.EXT_DD]
cmd.extend(args)
rc, out, err = commands.execCmd(cmd, raw=True, data=self.data)
assert rc == 0, "Process failed: rc={} err={}".format(rc, err)
assert err != '', "No data from stderr"
return out
def cleanup_transient_repository(*args):
"""
cleanup-transient-repository
Cleanup the unused transient disks present in the repository.
(NOTE: it is recommended to NOT execute this command when the vdsm
daemon is running)
"""
if len(args) > 1:
raise ExtraArgsError()
transient_images = set(glob.glob(os.path.join(TRANSIENT_DISKS_REPO, "*")))
if len(transient_images) == 0:
return # Nothing to do
cmd_ret, cmd_out, cmd_err = execCmd([_fuser.cmd] + list(transient_images))
# According to: "fuser returns a non-zero return code if none of the
# specified files is accessed or in case of a fatal error. If at least
# one access has been found, fuser returns zero." we can discard the
# return code.
# NOTE: the list of open files is printed to cmd_err with an extra ":"
# character appended (removed by [:-1]).
open_transient_images = set(x[:-1] for x in cmd_err)
for image_path in transient_images - open_transient_images:
# NOTE: This could cause a race with the creation of a virtual
# machine with a transient disk (if vdsm is running).
try:
os.unlink(image_path)
except OSError as e:
if e.errno != os.errno.ENOENT:
raise
def testV2VOutput(self):
cmd = [FAKE_VIRT_V2V.cmd,
'-v',
'-x',
'-ic', self.vpx_url,
'-o', 'vdsm',
'-of', 'raw',
'-oa', 'sparse',
'--vdsm-image-uuid', self.image_id_a,
'--vdsm-vol-uuid', self.volume_id_a,
'--vdsm-image-uuid', self.image_id_b,
'--vdsm-vol-uuid', self.volume_id_b,
'--password-file', '/tmp/mypass',
'--vdsm-vm-uuid', self.job_id,
'--vdsm-ovf-output', '/usr/local/var/run/vdsm/v2v',
'--machine-readable',
'-os', '/rhev/data-center/%s/%s' % (self.pool_id,
self.domain_id),
self.vm_name]
rc, output, error = execCmd(cmd, raw=True)
self.assertEqual(rc, 0)
with io.open('fake-virt-v2v.out', 'rb') as f:
self.assertEqual(output, f.read())
with io.open('fake-virt-v2v.err', 'rb') as f:
self.assertEqual(error, f.read())
def removeEphemeralBridge(bridgeName):
rc, out, err = commands.execCmd([
EXT_IP, 'link', 'del', bridgeName, 'type', 'bridge'])
if rc != 0:
raise EnvironmentError(
'Failed to remove ephemeral dummy bridge. Err: %s' % err
)
def testWaitCond(self):
p = commands.execCmd([EXT_SLEEP, str(EXECCMD_TIMEOUT + 1)], sync=False)
startTime = time.time()
p.wait(cond=lambda: time.time() - startTime > TIMEOUT)
duration = time.time() - startTime
self.assertLess(duration, EXECCMD_TIMEOUT + TIMEOUT)
self.assertGreater(duration, EXECCMD_TIMEOUT)
p.kill()
def __exit__(self, *args):
rc, out, err = execCmd([_SSH_ADD.cmd, '-d'], env=self._auth)
if rc != 0:
logging.error('Error deleting ssh-add, exit code: %r'
', out: %r, err: %r' %
(rc, out, err))
self._kill_agent()
def upload(url, path, headers={}):
cmd = [constants.EXT_CURL_IMG_WRAP, "--upload"]
cmd.extend(_headersToOptions(headers) + [path, url])
rc, out, err = commands.execCmd(cmd)
if rc != 0:
raise CurlError(rc, out, err)
def testStdErr(self):
"""
Tests that execCmd correctly returns the standard error of the prog it
executes.
"""
cmd = ["sh", "-c", "echo it works! >&2"]
ret, stdout, stderr = commands.execCmd(cmd)
self.assertEqual(stderr[0].decode("ascii"), "it works!")
def attach(self):
if self._path is not None:
raise AssertionError("Device is attached: %s" % self)
cmd = ["losetup", "--find", "--show", self._backing_file]
rc, out, err = commands.execCmd(cmd, raw=True)
if rc != 0:
raise cmdutils.Error(cmd, rc, out, err)
self._path = out.strip().decode("ascii")
def _validate_module(name):
if not os.path.exists('/sys/module/' + name):
cmd_modprobe = [modprobe.cmd, name]
rc, out, err = commands.execCmd(cmd_modprobe, sudo=True)
if rc != 0:
raise SkipTest("This test requires %s module "
"(failed to load module: rc=%s, out=%s, err=%s)" %
(name, rc, out, err))
def test_limit_rss():
# This should fail to allocate about 100 MiB.
script = "s = 100 * 1024**2 * 'x'"
cmd = ["python", "-c", script]
cmd = cmdutils.prlimit(cmd, address_space=100 * 1024**2)
rc, out, err = commands.execCmd(cmd, raw=True)
assert rc == 1
assert b"MemoryError" in err
def physicalVolumeList():
rc, out, err = commands.execCmd([_pvsCommandPath.cmd,
"--reportformat", "json",
"--units", "b",
"--nosuffix",
"-o", "pv_name,vg_name"])
if rc:
raise ge.GlusterCmdExecFailedException(rc, out, err)
return json.loads("".join(out))["report"][0]["pv"]
def testSudo(self):
"""
Tests that when running with sudo the user really is root (or other
desired user).
"""
cmd = [EXT_WHOAMI]
checkSudo(cmd)
ret, stdout, stderr = commands.execCmd(cmd, sudo=True)
self.assertEqual(stdout[0].decode("ascii"), SUDO_USER)
def copyFromImage(dstImgPath, methodArgs):
fileObj = methodArgs['fileObj']
bytes_left = total_size = methodArgs['length']
cmd = [constants.EXT_DD, "if=%s" % dstImgPath, "bs=%s" % constants.MEGAB,
"count=%s" % (total_size // constants.MEGAB + 1)]
p = commands.execCmd(cmd, sync=False)
p.blocking = True
with commands.terminating(p):
_copyData(p.stdout, fileObj, bytes_left)
def testStdOut(self):
"""
Tests that execCmd correctly returns the standard output of the prog it
executes.
"""
line = "All I wanted was to have some pizza, hang out with dad, " + \
"and not let your weirdness mess up my day"
# (C) Nickolodeon - Invader Zim
ret, stdout, stderr = commands.execCmd((EXT_ECHO, line))
self.assertEqual(stdout[0].decode("ascii"), line)
def testNice(self):
cmd = ["sleep", "10"]
proc = commands.execCmd(cmd, nice=10, sync=False)
try:
time.sleep(0.2)
nice = pidstat(proc.pid).nice
self.assertEqual(nice, 10)
finally:
proc.kill()
proc.wait()
def testValidInputFalse(self):
"""
Test that is work when given valid but incorrect input.
"""
count = 802
with tempfile.NamedTemporaryFile() as f:
cmd = [EXT_DD, "bs=1", "if=/dev/urandom", 'of=%s' % f.name,
'count=%d' % count]
rc, out, err = commands.execCmd(cmd)
self.assertFalse(misc.validateDDBytes(err, count + 1))
def _run(self, args, data=None):
rc, out, err = commands.execCmd(
args,
data=data,
raw=True,
# We do tiny io, no need to run this on another CPU.
resetCpuAffinity=False)
if rc != 0:
# Do not spam the log with received binary data
raise cmdutils.Error(args, rc, "[suppressed]", err)
return out
def _createVG(vgName, deviceList, stripeSize):
# bz#1198568: Blivet always creates vg with 1MB stripe size
# Workaround: Till blivet fixes the issue, use vgcreate command
devices = ','.join([device.path for device in deviceList])
rc, out, err = commands.execCmd([_vgCreateCommandPath.cmd,
'-s', '%sk' % stripeSize,
vgName, devices])
if rc:
raise ge.GlusterHostStorageDeviceVGCreateFailedException(
vgName, devices, stripeSize, rc, out, err)
blivetEnv.reset()
return blivetEnv.devicetree.getDeviceByName(vgName)
def test(self):
data = """Striker: You are a Time Lord, a lord of time.
Are there lords in such a small domain?
The Doctor: And where do you function?
Striker: Eternity. The endless wastes of eternity. """
# (C) BBC - Doctor Who
p = commands.execCmd([EXT_CAT], sync=False)
self.log.info("Writing data to std out")
p.stdin.write(data)
p.stdin.flush()
self.log.info("Written data reading")
self.assertEqual(p.stdout.read(len(data)), data)
def head(url, headers={}):
# Cannot be moved out because _curl.cmd is lazy-evaluated
cmd = [_curl.cmd] + CURL_OPTIONS + ["--head", url]
cmd.extend(_headersToOptions(headers))
rc, out, err = commands.execCmd(cmd)
if rc != 0:
raise CurlError(rc, out, err)
# Parse and return headers
return dict([x.split(": ", 1) for x in out[1:-1]])
def test_limit_cpu():
# This takes 6 seconds on i7-5600U CPU @ 2.60GHz. We assume that it will
# never take less then 1 second. Increase n if this starts to fail
# randomly.
script = """
n = 2**27
while n:
n -= 1
"""
cmd = ["python", "-c", script]
cmd = cmdutils.prlimit(cmd, cpu_time=1)
rc, out, err = commands.execCmd(cmd, raw=True)
assert rc == -9
def _createPV(deviceList, alignment):
for dev in deviceList:
# bz#1178705: Blivet always creates pv with 1MB dataalignment
# Workaround: Till blivet fixes the issue, we use lvm pvcreate
rc, out, err = commands.execCmd([_pvCreateCommandPath.cmd,
'--dataalignment',
'%sk' % alignment,
dev.path])
if rc:
raise ge.GlusterHostStorageDevicePVCreateFailedException(
dev.path, alignment, rc, out, err)
_reset_blivet(blivetEnv)
return _getDeviceList([dev.name for dev in deviceList])
def verify_pattern(path, format, offset=512, len=1024, pattern=5):
read_cmd = 'read -P %d -s 0 -l %d %d %d' % (pattern, len, offset, len)
cmd = ['qemu-io', '-f', format, '-c', read_cmd, path]
rc, out, err = commands.execCmd(cmd, raw=True)
# Older qemu-io (2.10) used to exit with zero exit code and "Pattern
# verification" error in stdout. In 2.12, non-zero code is returned when
# pattern verification fails.
if b"Pattern verification failed" in out:
raise VerificationError(
"Verification of volume %s failed. Pattern 0x%x not found at "
"offset %s"
% (path, pattern, offset))
if rc != 0 or err != b"":
raise cmdutils.Error(cmd, rc, out, err)
def processesStop():
command = ["/bin/sh", _stopAllProcessesPath.cmd]
rc, out, err = commands.execCmd(command)
if rc:
raise ge.GlusterProcessesStopFailedException(rc)
def func():
proc = commands.execCmd(["sleep", str(timeout)], sync=False)
return utils.AsyncProcessOperation(proc)
def test_normal(self, cmd):
rc, out, _ = commands.execCmd(cmd(('echo', 'hello world')))
assert rc == 0
assert out[0].decode() == 'hello world'
def test_io_class(self, cmd):
rc, out, _ = commands.execCmd(cmd(('ionice', )),
ioclass=2,
ioclassdata=3)
assert rc == 0
assert out[0].decode().strip() == 'best-effort: prio 3'
def _runHooksDir(data, dir, vmconf={}, raiseError=True, params={},
hookType=_DOMXML_HOOK):
scripts = _scriptsPerDir(dir)
scripts.sort()
if not scripts:
return data
data_fd, data_filename = tempfile.mkstemp()
try:
if hookType == _DOMXML_HOOK:
os.write(data_fd, data or '')
elif hookType == _JSON_HOOK:
os.write(data_fd, json.dumps(data))
os.close(data_fd)
scriptenv = os.environ.copy()
# Update the environment using params and custom configuration
env_update = [params.iteritems(),
vmconf.get('custom', {}).iteritems()]
# Encode custom properties to UTF-8 and save them to scriptenv
# Pass str objects (byte-strings) without any conversion
for k, v in itertools.chain(*env_update):
try:
if isinstance(v, unicode):
scriptenv[k] = v.encode('utf-8')
else:
scriptenv[k] = v
except UnicodeDecodeError:
pass
if vmconf.get('vmId'):
scriptenv['vmId'] = vmconf.get('vmId')
ppath = scriptenv.get('PYTHONPATH', '')
hook = pkgutil.get_loader('vdsm.hook').filename
scriptenv['PYTHONPATH'] = ':'.join(ppath.split(':') + [hook])
if hookType == _DOMXML_HOOK:
scriptenv['_hook_domxml'] = data_filename
elif hookType == _JSON_HOOK:
scriptenv['_hook_json'] = data_filename
errorSeen = False
for s in scripts:
rc, out, err = commands.execCmd([s], raw=True,
env=scriptenv)
logging.info('%s: rc=%s err=%s', s, rc, err)
if rc != 0:
errorSeen = True
if rc == 2:
break
elif rc > 2:
logging.warn('hook returned unexpected return code %s', rc)
if errorSeen and raiseError:
raise exception.HookError(err)
with open(data_filename) as f:
final_data = f.read()
finally:
os.unlink(data_filename)
if hookType == _DOMXML_HOOK:
return final_data
elif hookType == _JSON_HOOK:
return json.loads(final_data)
def createBrick(brickName,
mountPoint,
devNameList,
fsType=DEFAULT_FS_TYPE,
raidParams={}):
def _getDeviceList(devNameList):
return [
blivetEnv.devicetree.getDeviceByName(devName.split("/")[-1])
for devName in devNameList
]
def _createPV(deviceList, alignment):
for dev in deviceList:
# bz#1178705: Blivet always creates pv with 1MB dataalignment
# Workaround: Till blivet fixes the issue, we use lvm pvcreate
rc, out, err = commands.execCmd([
_pvCreateCommandPath.cmd, '--dataalignment',
'%sk' % alignment, dev.path
])
if rc:
raise ge.GlusterHostStorageDevicePVCreateFailedException(
dev.path, alignment, rc, out, err)
_reset_blivet(blivetEnv)
return _getDeviceList([dev.name for dev in deviceList])
def _createVG(vgName, deviceList, stripeSize):
# bz#1198568: Blivet always creates vg with 1MB stripe size
# Workaround: Till blivet fixes the issue, use vgcreate command
devices = ','.join([device.path for device in deviceList])
rc, out, err = commands.execCmd([
_vgCreateCommandPath.cmd, '-s',
'%sk' % stripeSize, vgName, devices
])
if rc:
raise ge.GlusterHostStorageDeviceVGCreateFailedException(
vgName, devices, stripeSize, rc, out, err)
blivetEnv.reset()
return blivetEnv.devicetree.getDeviceByName(vgName)
def _createThinPool(poolName, vg, alignment, poolMetaDataSize,
poolDataSize):
metaName = "meta-%s" % poolName
vgPoolName = "%s/%s" % (vg.name, poolName)
metaLv = LVMLogicalVolumeDevice(metaName,
parents=[vg],
size=blivet.size.Size(
'%d KiB' % poolMetaDataSize))
poolLv = LVMLogicalVolumeDevice(poolName,
parents=[vg],
size=blivet.size.Size('%d KiB' %
poolDataSize))
blivetEnv.createDevice(metaLv)
blivetEnv.createDevice(poolLv)
blivetEnv.doIt()
# bz#1100514: LVM2 currently only supports physical extent sizes
# that are a power of 2. Till that support is available we need
# to use lvconvert to achive that.
# bz#1179826: blivet doesn't support lvconvert functionality.
# Workaround: Till the bz gets fixed, lvconvert command is used
rc, out, err = commands.execCmd([
_lvconvertCommandPath.cmd, '--chunksize',
'%sK' % alignment, '--thinpool', vgPoolName, '--poolmetadata',
"%s/%s" % (vg.name, metaName), '--poolmetadataspar', 'n', '-y'
])
if rc:
raise ge.GlusterHostStorageDeviceLVConvertFailedException(
vg.path, alignment, rc, out, err)
rc, out, err = commands.execCmd(
[_lvchangeCommandPath.cmd, '--zero', 'n', vgPoolName])
if rc:
raise ge.GlusterHostStorageDeviceLVChangeFailedException(
vgPoolName, rc, out, err)
_reset_blivet(blivetEnv)
return blivetEnv.devicetree.getDeviceByName(poolLv.name)
if os.path.ismount(mountPoint):
raise ge.GlusterHostStorageMountPointInUseException(mountPoint)
vgName = "vg-" + brickName
poolName = "pool-" + brickName
poolDataSize = 0
count = 0
raidType = raidParams.get('type')
metaDataSizeKib = DEFAULT_METADATA_SIZE_KB
if raidType == '6':
count = raidParams['pdCount'] - 2
alignment = raidParams['stripeSize'] * count
chunkSize = alignment
elif raidType == '10':
count = raidParams['pdCount'] // 2
alignment = raidParams['stripeSize'] * count
chunkSize = DEFAULT_CHUNK_SIZE_KB
else: # Device type is JBOD
alignment = DEFAULT_CHUNK_SIZE_KB
chunkSize = DEFAULT_CHUNK_SIZE_KB
blivetEnv = blivet.Blivet()
_reset_blivet(blivetEnv)
# get the devices list from the device name
deviceList = _getDeviceList(devNameList)
# raise an error when any device not actually found in the given list
notFoundList = set(devNameList).difference(
set([dev.name for dev in deviceList]))
if notFoundList:
raise ge.GlusterHostStorageDeviceNotFoundException(notFoundList)
# raise an error when any device is used already in the given list
inUseList = set(devNameList).difference(
set([not _canCreateBrick(dev) or dev.name for dev in deviceList]))
if inUseList:
raise ge.GlusterHostStorageDeviceInUseException(inUseList)
pvDeviceList = _createPV(deviceList, alignment)
vg = _createVG(vgName, pvDeviceList, alignment)
# The following calculation is based on the redhat storage performance doc
# http://docbuilder.usersys.redhat.com/22522
# /#chap-Configuring_Red_Hat_Storage_for_Enhancing_Performance
# create ~16GB metadata LV (metaDataSizeKib) that has a size which is
# a multiple of RAID stripe width if it is > minimum vg size
# otherwise allocate a minimum of 0.5% of the data device size
# and create data LV (poolDataSize) that has a size which is
# a multiple of stripe width.
vgSizeKib = int(_getDeviceSize(vg, 'KiB'))
if _getDeviceSize(vg) < MIN_VG_SIZE:
metaDataSizeKib = vgSizeKib * MIN_METADATA_PERCENT
poolDataSize = vgSizeKib - metaDataSizeKib
metaDataSizeKib = (metaDataSizeKib - (metaDataSizeKib % alignment))
poolDataSize = (poolDataSize - (poolDataSize % alignment))
# Creating a thin pool from the data LV and the metadata LV
# lvconvert --chunksize alignment --thinpool VOLGROUP/thin_pool
# --poolmetadata VOLGROUP/metadata_device_name
pool = _createThinPool(poolName, vg, chunkSize, metaDataSizeKib,
poolDataSize)
# Size of the thin LV should be same as the size of Thinpool to avoid
# over allocation. Refer bz#1412455 for more info.
if six.PY2:
thinlv = LVMThinLogicalVolumeDevice(brickName,
parents=[pool],
size=blivet.size.Size(
'%d KiB' % poolDataSize),
grow=True)
else:
thinlv = LVMLogicalVolumeDevice(brickName,
parents=[pool],
size=blivet.size.Size('%d KiB' %
poolDataSize),
grow=True,
seg_type="thin")
blivetEnv.createDevice(thinlv)
blivetEnv.doIt()
if fsType != DEFAULT_FS_TYPE:
log.error("fstype %s is currently unsupported" % fsType)
raise ge.GlusterHostStorageDeviceMkfsFailedException(fsType)
if six.PY2:
get_format = blivet.formats.getFormat # pylint: disable=no-member
else:
get_format = blivet.formats.get_format # pylint: disable=no-member
format = get_format(DEFAULT_FS_TYPE,
device=thinlv.path,
mountopts=DEFAULT_MOUNT_OPTIONS)
format._defaultFormatOptions = ["-f", "-i", "size=512", "-n", "size=8192"]
if raidParams.get('type') == '6':
format._defaultFormatOptions += [
"-d", "sw=%s,su=%sk" % (count, raidParams.get('stripeSize'))
]
blivetEnv.formatDevice(thinlv, format)
blivetEnv.doIt()
try:
os.makedirs(mountPoint)
except OSError as e:
if errno.EEXIST != e.errno:
errMsg = "[Errno %s] %s: '%s'" % (e.errno, e.strerror, e.filename)
raise ge.GlusterHostStorageDeviceMakeDirsFailedException(
err=[errMsg])
thinlv.format.setup(mountpoint=mountPoint)
blivetEnv.doIt()
# bz#1230495: lvm devices are invisible and appears only after vgscan
# Workaround: Till the bz gets fixed, We use vgscan to refresh LVM devices
rc, out, err = commands.execCmd([_vgscanCommandPath.cmd])
if rc:
raise ge.GlusterHostStorageDeviceVGScanFailedException(rc, out, err)
fstab.FsTab().add(thinlv.path,
mountPoint,
DEFAULT_FS_TYPE,
mntOpts=[DEFAULT_MOUNT_OPTIONS])
# If selinux is enabled, set correct selinux labels on the brick.
if selinux.is_selinux_enabled():
rc, out, err = commands.execCmd([
_semanageCommandPath.cmd, 'fcontext', '-a', '-t',
'glusterd_brick_t', mountPoint
])
if rc:
raise ge.GlusterHostFailedToSetSelinuxContext(
mountPoint, rc, out, err)
try:
# mountPoint can be of 'unicode' type when its passed through
# jsonrpc. restorecon calls into a C API that needs a char *.
# Thus, it is necessary to encode unicode to a utf-8 string.
selinux.restorecon(mountPoint.encode('utf-8'), recursive=True)
except OSError as e:
errMsg = "[Errno %s] %s: '%s'" % (e.errno, e.strerror, e.filename)
raise ge.GlusterHostFailedToRunRestorecon(mountPoint, err=errMsg)
return _getDeviceDict(thinlv)
def _run_cmd(cmd, cwd=None):
rc, out, err = commands.execCmd(cmd, raw=True, cwd=cwd)
if rc != 0:
raise cmdutils.Error(cmd, rc, out, err)
return out
def write_pattern(path, format, offset=512, len=1024, pattern=5):
write_cmd = 'write -P %d %d %d' % (pattern, offset, len)
cmd = ['qemu-io', '-f', format, '-c', write_cmd, path]
rc, out, err = commands.execCmd(cmd, raw=True)
if rc != 0:
raise cmdutils.Error(cmd, rc, out, err)
def removeEphemeralBridge(bridgeName):
rc, out, err = commands.execCmd(
[EXT_IP, 'link', 'del', bridgeName, 'type', 'bridge'])
if rc != 0:
raise EnvironmentError(
'Failed to remove ephemeral dummy bridge. Err: %s' % err)
def systemctl_stop(self, name):
return commands.execCmd([
self._exes.systemctl.cmd,
'stop',
name,
], raw=True)
def testExistingNotInPaths(self):
"""Tests if CommandPath can find the executable like the 'which' unix
tool"""
cp = cmdutils.CommandPath('sh', 'utter nonsense')
_, stdout, _ = commands.execCmd(['which', 'sh'])
self.assertIn(cp.cmd.encode(), stdout)
def test_set_sid(self, cmd):
cmd_args = (sys.executable, '-c',
'from __future__ import print_function;import os;'
'print(os.getsid(os.getpid()))')
rc, out, _ = commands.execCmd(cmd(cmd_args), setsid=True)
assert int(out[0]) != os.getsid(os.getpid())
def test_sudo(self, cmd):
rc, out, _ = commands.execCmd(cmd(
('grep', 'Uid', '/proc/self/status')),
sudo=True)
assert rc == 0
assert int(out[0].split()[2]) == 0
def test_panic(self):
cmd = [sys.executable, "panic_helper.py"]
rc, out, err = commands.execCmd(cmd)
self.assertEqual(rc, -9)
def _sleep(self, t):
proc = commands.execCmd(["sleep", str(t)], sync=False)
return utils.AsyncProcessOperation(proc)
def configure_passwd():
script = (str(_SASLPASSWD2), '-p', '-a', 'libvirt', SASL_USERNAME)
rc, _, err = commands.execCmd(script, data=libvirt_password())
if rc != 0:
raise RuntimeError("Set password failed: %s" % (err, ))
def snapshotScheduleDisable():
command = [_snapSchedulerPath.cmd, "disable_force"]
rc, out, err = commands.execCmd(command)
if rc not in [0, SNAP_SCHEDULER_ALREADY_DISABLED_RC]:
raise ge.GlusterDisableSnapshotScheduleFailedException(rc)
return True
def systemctl_stop(name):
return commands.execCmd([_SYSTEMCTL.cmd, 'stop', name], )
def testCommunicate(self):
data = ("The trouble with the world is that the stupid are cocksure "
"and the intelligent are full of doubt")
p = commands.execCmd([EXT_DD], data=data, sync=False)
p.stdin.close()
self.assertEqual(p.stdout.read(len(data)).strip(), data)
def run_client(self, host, port, protocol):
cmd = ['openssl', 's_client', '-connect', '%s:%s' % (host, port),
'-CAfile', CRT_FILE, '-cert', CRT_FILE, '-key', KEY_FILE,
protocol]
rc, _, _ = execCmd(cmd)
return rc
def testNoCommandWithAffinity(self):
rc, _, _ = commands.execCmd(["I.DONT.EXIST"])
self.assertNotEqual(rc, 0)
def _run_command(args):
cmd = [_UDEVADM.cmd]
cmd.extend(args)
rc, out, err = commands.execCmd(cmd, raw=True)
if rc != 0:
raise cmdutils.Error(cmd, rc, out, err)
def test_nice(self, cmd):
rc, out, _ = commands.execCmd(cmd(('cat', '/proc/self/stat')), nice=7)
assert rc == 0
assert int(out[0].split()[18]) == 7
def setUp(self):
self.proc = commands.execCmd([EXT_SLEEP, "2"], sync=False)
self.proc_poll = self.proc.poll
self.proc_kill = self.proc.kill
self.proc_wait = self.proc.wait