def call(self, method, *args, **kwargs):
"""Call a glance client method.
If we get a connection error,
retry the request according to CONF.num_retries.
:param context: The request context, for access checks.
:param method: The method requested to be called.
:param args: A list of positional arguments for the method called
:param kwargs: A dict of keyword arguments for the method called
:raises: GlanceConnectionFailed
"""
retry_excs = (glance_exc.ServiceUnavailable,
glance_exc.InvalidEndpoint,
glance_exc.CommunicationError)
image_excs = (glance_exc.Forbidden, glance_exc.Unauthorized,
glance_exc.NotFound, glance_exc.BadRequest)
try:
return getattr(self.client.images, method)(*args, **kwargs)
except retry_excs as e:
error_msg = ("Error contacting glance endpoint "
"%(endpoint)s for '%(method)s'")
LOG.exception(error_msg, {
'endpoint': self.endpoint,
'method': method
})
raise exception.GlanceConnectionFailed(endpoint=self.endpoint,
reason=e)
except image_excs:
exc_type, exc_value, exc_trace = sys.exc_info()
new_exc = _translate_image_exception(args[0], exc_value)
raise type(new_exc)(new_exc).with_traceback(exc_trace)
def call(self, method, *args, **kwargs):
"""Call a glance client method.
If we get a connection error,
retry the request according to CONF.glance_num_retries.
:param context: The request context, for access checks.
:param version: The requested API version.v
:param method: The method requested to be called.
:param args: A list of positional arguments for the method called
:param kwargs: A dict of keyword arguments for the method called
:raises: GlanceConnectionFailed
"""
retry_excs = (exception.ServiceUnavailable, exception.InvalidEndpoint,
exception.CommunicationError)
image_excs = (exception.Forbidden, exception.Unauthorized,
exception.NotFound, exception.BadRequest)
num_attempts = 1 + CONF.glance.glance_num_retries
for attempt in range(1, num_attempts + 1):
try:
return getattr(self.client.images, method)(*args, **kwargs)
except retry_excs as e:
host = self.glance_host
port = self.glance_port
extra = "retrying"
error_msg = _LE("Error contacting glance server "
"'%(host)s:%(port)s' for '%(method)s', "
"%(extra)s.")
if attempt == num_attempts:
extra = 'done trying'
LOG.exception(
error_msg, {
'host': host,
'port': port,
'num_attempts': num_attempts,
'method': method,
'extra': extra
})
raise exception.GlanceConnectionFailed(host=host,
port=port,
reason=str(e))
LOG.exception(
error_msg, {
'host': host,
'port': port,
'num_attempts': num_attempts,
'attempt': attempt,
'method': method,
'extra': extra
})
time.sleep(1)
except image_excs as e:
exc_type, exc_value, exc_trace = sys.exc_info()
if method == 'list':
new_exc = _translate_plain_exception(exc_value)
else:
new_exc = _translate_image_exception(args[0], exc_value)
raise new_exc, None, exc_trace
def test_validate_fail_glance_conn_problem(self, mock_glance):
exceptions = (exception.GlanceConnectionFailed('connection fail'),
exception.ImageNotAuthorized('not authorized'),
exception.Invalid('invalid'))
mock_glance.side_effect = exceptions
for exc in exceptions:
with task_manager.acquire(self.context, self.node.uuid,
shared=True) as task:
self.assertRaises(exception.InvalidParameterValue,
task.driver.deploy.validate, task)
def call(self, method, *args, **kwargs):
"""Call a glance client method.
If we get a connection error,
retry the request according to CONF.glance_num_retries.
:param context: The request context, for access checks.
:param version: The requested API version.v
:param method: The method requested to be called.
:param args: A list of positional arguments for the method called
:param kwargs: A dict of keyword arguments for the method called
:raises: GlanceConnectionFailed
"""
retry_excs = (glance_exc.ServiceUnavailable,
glance_exc.InvalidEndpoint,
glance_exc.CommunicationError)
image_excs = (glance_exc.Forbidden,
glance_exc.Unauthorized,
glance_exc.NotFound,
glance_exc.BadRequest)
num_attempts = 1 + CONF.glance.glance_num_retries
# TODO(pas-ha) use retrying lib here
for attempt in range(1, num_attempts + 1):
try:
return getattr(self.client.images, method)(*args, **kwargs)
except retry_excs as e:
error_msg = ("Error contacting glance server "
"'%(endpoint)s' for '%(method)s', attempt"
" %(attempt)s of %(num_attempts)s failed.")
LOG.exception(error_msg, {'endpoint': self.endpoint,
'num_attempts': num_attempts,
'attempt': attempt,
'method': method})
if attempt == num_attempts:
raise exception.GlanceConnectionFailed(
endpoint=self.endpoint, reason=str(e))
time.sleep(1)
except image_excs as e:
exc_type, exc_value, exc_trace = sys.exc_info()
new_exc = _translate_image_exception(
args[0], exc_value)
six.reraise(type(new_exc), new_exc, exc_trace)
