Adds quotas for fixed IPs on ports

RM11643

Implements quota checking the number of fixed IP addresses allowed on a
port on create and update port, as well as create and update IP Address.

quark/plugin_modules/ip_addresses.py

@@ -14,6 +14,7 @@
 #    under the License.
 
 from neutron.common import exceptions
+from neutron import quota
 from oslo.config import cfg
 from oslo_log import log as logging
 import webob
@@ -65,6 +66,13 @@ def validate_ports_on_network_and_same_segment(ports, network_id):
                                             msg="Segment id's do not match.")
 
 
+def validate_port_ip_quotas(context, ports):
+    for port in ports:
+        addresses = port.get("ip_addresses", [])
+        quota.QUOTAS.limit_check(context, context.tenant_id,
+                                 fixed_ips_per_port=len(addresses) + 1)
+
+
 def _shared_ip_request(ip_address):
     port_ids = ip_address.get('ip_address', {}).get('port_ids', [])
     return len(port_ids) > 1
@@ -117,6 +125,7 @@ def create_ip_address(context, body):
                                           net_id=network_id)
 
     validate_ports_on_network_and_same_segment(ports, network_id)
+    validate_port_ip_quotas(context, ports)
 
     # Shared Ips are only new IPs. Two use cases: if we got device_id
     # or if we got port_ids. We should check the case where we got port_ids
@@ -185,6 +194,7 @@ def update_ip_address(context, id, ip_address):
 
             validate_ports_on_network_and_same_segment(ports,
                                                        address["network_id"])
+            validate_port_ip_quotas(context, ports)
 
             LOG.info("Updating IP address, %s, to only be used by the"
                      "following ports:  %s" % (address.address_readable,