def post(self):
#get data from request.
data = json.loads(self.request.body)
lab_id = data['lab_id']
target_function = data['target_function']
target_instances = data['target_instances']
#create lab key
lab_key = ndb.Key('Lab', int(lab_id))
#get lab entity from datastore
lab = lab_key.get()
gce_project = gce.GceProject(oauth_decorator.credentials, project_id=lab.project_id, zone_name=lab.lab_zone)
if target_instances == "ALL":
instances = Instance.query(Instance.lab == lab_key).fetch()
else:
instances = []
for i in target_instances:
try:
instances.append(ndb.Key('Instance', int(i)).get())
except:
logging.debug("Key error?")
if target_function == 'START':
start_instances(gce_project, lab, instances)
elif target_function == 'STOP':
stop_instances(gce_project, lab, instances)
elif target_function == "DELETE":
delete_instances(gce_project, lab, instances)
def post(self):
#get data from request.
data = json.loads(self.request.body)
lab_id = data['lab_id']
#create lab key
lab_key = ndb.Key('Lab', int(lab_id))
#get lab entity from datastore
lab = lab_key.get()
project_id = lab.project_id
lab_zone = lab.lab_zone
#get expected instances from datastore
query = Instance.query(Instance.lab == lab_key).fetch()
#get active instances for project, add to dictionary
gce_project = gce.GceProject(oauth_decorator.credentials, project_id=project_id, zone_name=lab_zone)
instances = gce_appengine.GceAppEngine().run_gce_request(self,
gce_project.list_instances,
'Error listing instances: ',
# filter='name eq ^%s.*' % 'test-instance',
maxResults='500')
status_dict = {}
ip_dict = {}
for instance in instances:
status_dict[instance.name] = instance.status
if instance.status == 'RUNNING':
ip_dict[instance.name] = instance.network_interfaces[0][u'accessConfigs'][0]['natIP']
logging.debug(status_dict)
#compare expected instances with active instances and produce list for passing to client side js function
instance_list = []
for n in range(len(query)):
instance_name = query[n].name
pass_phrase = memcache.get(instance_name)
if pass_phrase is not None:
logging.debug("Did read from memcache!")
#TODO
desired_state = query[n].desired_state
if desired_state == "RUNNING":
if instance_name in status_dict:
instance_state = status_dict[query[n].name]
elif (datetime.now() - query[n].request_timestamp) < timedelta(seconds=120):
instance_state = "REQUEST PENDING"
else:
instance_state = "ERROR STARTING INSTANCE"
## could call start function here
elif desired_state == "TERMINATED":
if instance_name not in status_dict:
instance_state = "TERMINATED"
elif status_dict[query[n].name] == "STOPPING":
instance_state = "STOPPING"
elif (datetime.now() - query[n].request_timestamp) < timedelta(seconds=120):
instance_state = "REQUEST PENDING"
else:
instance_state = "ERROR STOPPING INSTANCE"
## could call stop function here
# if instance_name in status_dict:
# instance_state = status_dict[query[n].name]
# else:
# instance_state = "TERMINATED"
ip_address = 'Not assigned'
if instance_state == 'RUNNING':
ip_address = ip_dict[instance.name]
instance_list.append({"address": ip_address,
"id": query[n].key.id(),
"state": instance_state,
"name": instance_name,
"pass": pass_phrase})
self.response.out.write(json.dumps(instance_list))