Fix internal-* in identity service relation data

internal-host, internal-port, internal-protocol holds
the values of admin endpoint. Change them to use internal
endpoint.

Change-Id: Ibb6985a9a67f4372d58ff199c09f82df0b7eb3b5

charms/keystone-k8s/src/charm.py

@@ -40,6 +40,9 @@ from typing import (
     Dict,
     List,
 )
+from urllib.parse import (
+    urlparse,
+)
 
 import charms.keystone_k8s.v0.domain_config as sunbeam_dc_svc
 import charms.keystone_k8s.v0.identity_credentials as sunbeam_cc_svc
@@ -1244,6 +1247,12 @@ export OS_AUTH_VERSION=3
                     region=region,
                     may_exist=True,
                 )
+            parsed_internal_endpoint = urlparse(self.internal_endpoint)
+            internal_host = parsed_internal_endpoint.hostname
+            internal_protocol = parsed_internal_endpoint.scheme
+            internal_port = parsed_internal_endpoint.port
+            if not internal_port:
+                internal_port = 80 if internal_protocol == "http" else 443
             self.id_svc.interface.set_identity_service_credentials(
                 relation_name,
                 relation_id,
@@ -1251,9 +1260,9 @@ export OS_AUTH_VERSION=3
                 ingress_address,
                 self.default_public_ingress_port,
                 "http",
-                ingress_address,
-                self.default_public_ingress_port,
-                "http",
+                internal_host,
+                internal_port,
+                internal_protocol,
                 ingress_address,
                 self.default_public_ingress_port,
                 "http",

charms/keystone-k8s/tests/unit/test_keystone_charm.py

@@ -213,8 +213,8 @@ class TestKeystoneOperatorCharm(test_utils.CharmTestCase):
                 "auth-port": "5000",
                 "auth-protocol": "http",
                 "internal-auth-url": "http://internal-url/v3",
-                "internal-host": "10.0.0.10",
-                "internal-port": "5000",
+                "internal-host": "internal-url",
+                "internal-port": "80",
                 "internal-protocol": "http",
                 "public-auth-url": "http://public-url/v3",
                 "service-domain-id": "sdomain_id",