Fix compute, volume, and share endpoint discovery.

The endpoint discovery mechanism in compute, volume, and share use
no_port_cut_url to cut the URLs after the version (including the
version) if port is not present.  However, when the port is present, the
no_port_cut_url method sets the top_level to True when calling do_get
method. This causes the do_get method also cut the top_level_path of the
URLs because by default the top_level_path is set to "". This behavior
is not desired because different clouds maybe have endpoints with
different top_level_path other than "". Instead of using
no_port_cut_url, we can use utils.get_base_url to properly cut the URLs
after and including the version.

Story: #2010968
Task: #49109
Change-Id: I221b6267afce90b8b7e22d468f0824c9365f4a91

config_tempest/services/compute.py

@@ -19,12 +19,13 @@ from tempest.lib import exceptions
 
 from config_tempest import constants as C
 from config_tempest.services.base import VersionedService
+from config_tempest import utils
 
 
 class ComputeService(VersionedService):
     def set_versions(self):
-        url, top_level = self.no_port_cut_url()
-        body = self.do_get(url, top_level=top_level)
+        url_without_version = utils.get_base_url(self.service_url)
+        body = self.do_get(url_without_version, top_level=False)
         self.versions_body = json.loads(body)
         self.versions = self.deserialize_versions(self.versions_body)
 

config_tempest/services/share.py

@@ -17,6 +17,7 @@ import json
 
 from config_tempest import constants as C
 from config_tempest.services.base import VersionedService
+from config_tempest import utils
 
 from tempest.lib import exceptions
 
@@ -24,8 +25,8 @@ from tempest.lib import exceptions
 class ShareService(VersionedService):
 
     def set_versions(self):
-        url, top_level = self.no_port_cut_url()
-        body = self.do_get(url, top_level=top_level)
+        url_without_version = utils.get_base_url(self.service_url)
+        body = self.do_get(url_without_version, top_level=False)
         self.versions_body = json.loads(body)
         self.versions = self.deserialize_versions(self.versions_body)
 

config_tempest/services/volume.py

@@ -19,6 +19,7 @@ import re
 from config_tempest import constants as C
 from config_tempest.services.base import ServiceError
 from config_tempest.services.base import VersionedService
+from config_tempest import utils
 
 from tempest.lib import exceptions
 
@@ -30,8 +31,8 @@ class VolumeService(VersionedService):
         self.extensions = list(map(lambda x: x['alias'], body['extensions']))
 
     def set_versions(self):
-        url, top_level = self.no_port_cut_url()
-        body = self.do_get(url, top_level=top_level)
+        url_without_version = utils.get_base_url(self.service_url)
+        body = self.do_get(url_without_version, top_level=False)
         self.versions_body = json.loads(body)
         self.versions = self.deserialize_versions(self.versions_body)
 

config_tempest/tests/test_utils.py

@@ -0,0 +1,51 @@
+# Copyright 2023 Red Hat, Inc.
+# All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+
+
+from config_tempest.tests.base import BaseConfigTempestTest
+from config_tempest import utils
+
+
+class TestUtils(BaseConfigTempestTest):
+    """Utils test class
+
+    Tests for get_base_url method.
+    """
+
+    def setUp(self):
+        super(TestUtils, self).setUp()
+        self.fake_urls = [
+            "http://10.200.16.10:8774",
+            "http://10.200.16.10:5000/v3",
+            "http://10.200.16.10/path",
+            "http://10.200.16.10:8774/path",
+            "http://10.200.16.10:8774/path/v2.1",
+            "http://10.200.16.10:8774/path/v2/58f582e50641fead037e8e3f7ca59f",
+        ]
+        self.expected_base_urls = [
+            "http://10.200.16.10:8774/",
+            "http://10.200.16.10:5000/",
+            "http://10.200.16.10/path/",
+            "http://10.200.16.10:8774/path/",
+            "http://10.200.16.10:8774/path/",
+            "http://10.200.16.10:8774/path/",
+        ]
+        self.test_cases = zip(self.fake_urls, self.expected_base_urls)
+
+    def test_get_base_url(self):
+        for url, expected_base_url in self.test_cases:
+            with self.subTest(url=url):
+                base_url = utils.get_base_url(url)
+                self.assertEqual(expected_base_url, base_url)