def sandesh_handle_db_list_request(cls, req):
""" Reply to Network Policy DB lookup/introspect request. """
np_resp = introspect.NetworkPolicyDatabaseListResp(network_policies=[])
# Iterate through all elements of Network Policy DB.
for np in NetworkPolicyKM.values():
# If the request is for a specific entry, then locate the entry.
if req.network_policy_uuid and req.network_policy_uuid != np.uuid:
continue
# Parse "ingress" attribute.
np_ingress_list = []
if np.spec.get('ingress'):
for ingress in np.spec.get('ingress'):
# Parse "from" attribute.
from_list = []
if ingress.get('from'):
for each_from in ingress.get('from'):
np_pod_selector = None
if each_from.get('podSelector'):
np_pod_selector = np.get_pod_selector(
each_from.get('podSelector'))
from_list.append(introspect.NetworkPolicyFromRules(
podSelector=np_pod_selector))
# Parse "ports" attribute.
np_port_list = []
if ingress.get('ports'):
for port in ingress.get('ports'):
np_port = introspect.NetworkPolicyPort(
port=port.get('port').__str__(),
protocol=port.get('protocol'))
np_port_list.append(np_port)
np_ingress_list.append(\
introspect.NetworkPolicyIngressPolicy(\
fromPolicy=from_list, ports=np_port_list))
# Parse "pod selector" attribute.
np_pod_selector = None
if np.spec.get('podSelector'):
pod_selector = np.spec.get('podSelector')
np_pod_selector = introspect.NetworkPolicyPodSelectors(
matchLabels=pod_selector.get('matchLabels'))
np_spec = introspect.NetworkPolicySpec(ingress=np_ingress_list,
podSelector=np_pod_selector)
np_instance = introspect.NetworkPolicyInstance(uuid=np.uuid,
name=np.name, name_space=np.namespace,
spec_string=np.spec.__str__(), spec=np_spec)
# Append the constructed element info to the response.
np_resp.network_policies.append(np_instance)
# Send the reply out.
np_resp.response(req.context())
def get_pod_selector(self, pod_selector):
labels = pod_selector.get('matchLabels') \
if pod_selector.get('matchLabels') else {}
return introspect.NetworkPolicyPodSelectors(matchLabels=labels)