def on_put(self, req, resp, name):
"""
Handles the creation of a new Cluster.
:param req: Request instance that will be passed through.
:type req: falcon.Request
:param resp: Response instance that will be passed through.
:type resp: falcon.Response
:param name: The name of the Cluster being created.
:type name: str
"""
# PUT is idempotent, and since there's no body to this request,
# there's nothing to conflict with. The request should always
# succeed, even if we didn't actually do anything.
if util.etcd_cluster_exists(self.store, name):
self.logger.info(
'Creation of already exisiting cluster {0} requested.'.format(
name))
else:
key = util.etcd_cluster_key(name)
cluster = Cluster(status='ok', hostset=[])
etcd_resp = self.store.set(key, cluster.to_json(secure=True))
self.logger.info(
'Created cluster {0} per request.'.format(name))
self.logger.debug('Etcd Response: {0}'.format(etcd_resp))
resp.status = falcon.HTTP_201
def on_get(self, req, resp, name):
"""
Handles retrieval of an existing Cluster.
:param req: Request instance that will be passed through.
:type req: falcon.Request
:param resp: Response instance that will be passed through.
:type resp: falcon.Response
:param name: The name of the Cluster being requested.
:type name: str
"""
key = util.etcd_cluster_key(name)
etcd_resp, error = cherrypy.engine.publish('store-get', key)[0]
if error:
resp.status = falcon.HTTP_404
return
cluster = Cluster(**json.loads(etcd_resp.value))
if not cluster:
resp.status = falcon.HTTP_404
return
self._calculate_hosts(cluster)
# Have to set resp.body explicitly to include Hosts.
resp.body = cluster.to_json_with_hosts()
resp.status = falcon.HTTP_200
def on_put(self, req, resp, name):
"""
Handles the creation of a new Cluster.
:param req: Request instance that will be passed through.
:type req: falcon.Request
:param resp: Response instance that will be passed through.
:type resp: falcon.Response
:param name: The name of the Cluster being created.
:type name: str
"""
# PUT is idempotent, and since there's no body to this request,
# there's nothing to conflict with. The request should always
# succeed, even if we didn't actually do anything.
if util.etcd_cluster_exists(name):
self.logger.info(
'Creation of already exisiting cluster {0} requested.'.format(
name))
else:
key = util.etcd_cluster_key(name)
cluster = Cluster(status='ok', hostset=[])
etcd_resp, _ = cherrypy.engine.publish(
'store-save', key, cluster.to_json(secure=True))[0]
self.logger.info('Created cluster {0} per request.'.format(name))
self.logger.debug('Etcd Response: {0}'.format(etcd_resp))
resp.status = falcon.HTTP_201
def on_get(self, req, resp, name):
"""
Handles retrieval of an existing Cluster.
:param req: Request instance that will be passed through.
:type req: falcon.Request
:param resp: Response instance that will be passed through.
:type resp: falcon.Response
:param name: The name of the Cluster being requested.
:type name: str
"""
key = util.etcd_cluster_key(name)
etcd_resp, error = cherrypy.engine.publish('store-get', key)[0]
if error:
resp.status = falcon.HTTP_404
return
cluster = Cluster(**json.loads(etcd_resp.value))
if not cluster:
resp.status = falcon.HTTP_404
return
self._calculate_hosts(cluster)
# Have to set resp.body explicitly to include Hosts.
resp.body = cluster.to_json_with_hosts()
resp.status = falcon.HTTP_200
def on_delete(self, req, resp, name):
"""
Handles the deletion of a Cluster.
:param req: Request instance that will be passed through.
:type req: falcon.Request
:param resp: Response instance that will be passed through.
:type resp: falcon.Response
:param name: The name of the Cluster being deleted.
:type name: str
"""
resp.body = '{}'
if not util.etcd_cluster_exists(name):
self.logger.info(
'Deleting for non-existent cluster {0} requested.'.format(
name))
resp.status = falcon.HTTP_404
else:
self.store.delete(util.etcd_cluster_key(name))
resp.status = falcon.HTTP_200
self.logger.info('Deleted cluster {0} per request.'.format(name))
def on_delete(self, req, resp, name):
"""
Handles the deletion of a Cluster.
:param req: Request instance that will be passed through.
:type req: falcon.Request
:param resp: Response instance that will be passed through.
:type resp: falcon.Response
:param name: The name of the Cluster being deleted.
:type name: str
"""
resp.body = '{}'
if not util.etcd_cluster_exists(self.store, name):
self.logger.info(
'Deleting for non-existent cluster {0} requested.'.format(
name))
resp.status = falcon.HTTP_404
else:
self.store.delete(util.etcd_cluster_key(name))
resp.status = falcon.HTTP_410
self.logger.info(
'Deleted cluster {0} per request.'.format(name))