def update_node(self, lb_id, node_id, node_updates):
"""
Update the weight, condition, or type of a single node. The IP, port,
status, and ID are immutable, and attempting to change them will cause
a 400 response to be returned.
All success and error behavior verified as of 2016-06-16.
:param str lb_id: the load balancer ID
:param str node_id: the node ID to update
:param dict node_updates: The JSON dictionary containing node
attributes to update
:param current_timestamp: What the current time is
:return: a `tuple` of (json response as a dict, http status code)
"""
feed_summary = (
"Node successfully updated with address: '{address}', port: '{port}', "
"weight: '{weight}', condition: '{condition}'")
# first, store whether address and port were provided - if they were
# that's a validation error not a schema error
things_wrong = {k: True for k in ("address", "port", "id")
if k in node_updates}
node_updates = {k: node_updates[k] for k in node_updates
if k not in ("address", "port")}
# use the Node.from_json to check the schema
try:
Node.from_json(dict(address="1.1.1.1", port=80, **node_updates))
except (TypeError, ValueError):
return invalid_json_schema()
# handle the possible validation (as opposed to schema) errors
if not 1 <= node_updates.get('weight', 1) <= 100:
things_wrong["weight"] = True
if things_wrong:
return updating_node_validation_error(**things_wrong)
# Now, finally, check if the LB exists and node exists
if lb_id in self.lbs:
self._verify_and_update_lb_state(lb_id, False, self.clock.seconds())
if self.lbs[lb_id]["status"] != "ACTIVE":
return considered_immutable_error(
self.lbs[lb_id]["status"], lb_id)
for i, node in enumerate(self.lbs[lb_id].nodes):
if node.id == node_id:
params = attr.asdict(node)
params.update(node_updates)
self.lbs[lb_id].nodes[i] = Node(**params)
self.lbs[lb_id].nodes[i].feed_events.append(
(feed_summary.format(**params),
seconds_to_timestamp(self.clock.seconds())))
return ("", 202)
return node_not_found()
return loadbalancer_not_found()
def update_node(self, lb_id, node_id, node_updates):
"""
Update the weight, condition, or type of a single node. The IP, port,
status, and ID are immutable, and attempting to change them will cause
a 400 response to be returned.
All success and error behavior verified as of 2016-06-16.
:param str lb_id: the load balancer ID
:param str node_id: the node ID to update
:param dict node_updates: The JSON dictionary containing node
attributes to update
:param current_timestamp: What the current time is
:return: a `tuple` of (json response as a dict, http status code)
"""
feed_summary = (
"Node successfully updated with address: '{address}', port: '{port}', "
"weight: '{weight}', condition: '{condition}'")
# first, store whether address and port were provided - if they were
# that's a validation error not a schema error
things_wrong = dict([(k, True) for k in ("address", "port", "id")
if k in node_updates])
node_updates = dict([(k, v) for k, v in node_updates.items()
if k not in ("address", "port")])
# use the Node.from_json to check the schema
try:
Node.from_json(dict(address="1.1.1.1", port=80, **node_updates))
except (TypeError, ValueError):
return invalid_json_schema()
# handle the possible validation (as opposed to schema) errors
if not 1 <= node_updates.get('weight', 1) <= 100:
things_wrong["weight"] = True
if things_wrong:
return updating_node_validation_error(**things_wrong)
# Now, finally, check if the LB exists and node exists
if lb_id in self.lbs:
self._verify_and_update_lb_state(lb_id, False, self.clock.seconds())
if self.lbs[lb_id]["status"] != "ACTIVE":
return considered_immutable_error(
self.lbs[lb_id]["status"], lb_id)
for i, node in enumerate(self.lbs[lb_id].nodes):
if node.id == node_id:
params = attr.asdict(node)
params.update(node_updates)
self.lbs[lb_id].nodes[i] = Node(**params)
self.lbs[lb_id].nodes[i].feed_events.append(
(feed_summary.format(**params),
seconds_to_timestamp(self.clock.seconds())))
return ("", 202)
return node_not_found()
return loadbalancer_not_found()
def update_node(self, request, tenant_id, lb_id, node_id):
"""
Return a 202 response code to updating a node, if successful.
"""
try:
content = json.loads(request.content.read())
assert isinstance(content, dict) and content.keys() == ["node"]
content = content["node"]
assert isinstance(content, dict)
except (ValueError, AssertionError):
resp_body, resp_code = invalid_json_schema()
else:
resp_body, resp_code = self.session(tenant_id).update_node(
lb_id, node_id, content)
request.setResponseCode(resp_code)
if isinstance(resp_body, string_types):
return resp_body
return json.dumps(resp_body)
def update_node(self, request, tenant_id, lb_id, node_id):
"""
Return a 202 response code to updating a node, if successful.
"""
try:
content = json.loads(request.content.read())
assert isinstance(content, dict) and content.keys() == ["node"]
content = content["node"]
assert isinstance(content, dict)
except (ValueError, AssertionError):
resp_body, resp_code = invalid_json_schema()
else:
resp_body, resp_code = self.session(tenant_id).update_node(
lb_id, node_id, content
)
request.setResponseCode(resp_code)
if isinstance(resp_body, string_types):
return resp_body
return json.dumps(resp_body)
