Add "network" to the EXT_PARENT_RESOURCE_MAPPING

It's needed so network can be used as ext_parent for e.g. subnets in
the API policy rules.

Related-bug: #2023679
Change-Id: Ib446dffcd60e18b578a4d816ab5881e2fabc3e51

neutron_lib/services/constants.py

@@ -14,6 +14,7 @@
 
 from neutron_lib.api.definitions import l3
 from neutron_lib.api.definitions import local_ip
+from neutron_lib.api.definitions import network
 from neutron_lib.api.definitions import qos
 from neutron_lib.plugins import constants as plugin_const
 
@@ -31,4 +32,5 @@ EXT_PARENT_RESOURCE_MAPPING = {
     l3.ROUTER: plugin_const.CONNTRACKHELPER,
     local_ip.RESOURCE_NAME: plugin_const.LOCAL_IP,
     qos.POLICY: plugin_const.QOS,
+    network.RESOURCE_NAME: plugin_const.CORE,
 }

releasenotes/notes/network-in-parent-resource-mapping-0bc57f9bb54d1dc9.yaml

@@ -0,0 +1,5 @@
+---
+other:
+  - |
+    Resource ``network`` was added to the ``EXT_PARENT_RESOURCE_MAPPING in
+    ``neutron_lib.services.constants``.