Add support for showing scheduler_hints in server details

Adds support for a new compute microversion that returns the
associated scheduler_hints in ``GET /servers/{server_id}``,
``GET /servers/detail``, ``PUT /servers/{server_id}`` and
``POST /server/{server_id}/action`` (rebuild) responses.

Change-Id: Ia5a4e0047b5123f2fb063cfc9ab1f58b2844308f

openstackclient/compute/v2/server.py

@@ -184,6 +184,7 @@ def _prep_server_detail(compute_client, image_client, server, *, refresh=True):
         'user_data': 'OS-EXT-SRV-ATTR:user_data',
         'vm_state': 'OS-EXT-STS:vm_state',
         'pinned_availability_zone': 'pinned_availability_zone',
+        'scheduler_hints': 'scheduler_hints',
     }
     # Some columns returned by openstacksdk should not be shown because they're
     # either irrelevant or duplicates
@@ -204,7 +205,6 @@ def _prep_server_detail(compute_client, image_client, server, *, refresh=True):
         'min_count',
         'networks',
         'personality',
-        'scheduler_hints',
         # aliases
         'volumes',
         # unnecessary
@@ -235,6 +235,11 @@ def _prep_server_detail(compute_client, image_client, server, *, refresh=True):
 
     info = data
 
+    # NOTE(dviroel): microversion 2.100 is now retrieving scheduler_hints
+    #  content from request_spec on detailed responses
+    if not sdk_utils.supports_microversion(compute_client, '2.100'):
+        info.pop('scheduler_hints', None)
+
     # Convert the image blob to a name
     image_info = info.get('image', {})
     if image_info and any(image_info.values()):
@@ -321,6 +326,11 @@ def _prep_server_detail(compute_client, image_client, server, *, refresh=True):
             info['OS-EXT-STS:power_state']
         )
 
+    if 'scheduler_hints' in info:
+        info['scheduler_hints'] = format_columns.DictListColumn(
+            info.pop('scheduler_hints', {}),
+        )
+
     return info
 
 
@@ -2873,12 +2883,14 @@ class ListServer(command.Lister):
                 'pinned_availability_zone',
                 'hypervisor_hostname',
                 'metadata',
+                'scheduler_hints',
             )
             column_headers += (
                 'Availability Zone',
                 'Pinned Availability Zone',
                 'Host',
                 'Properties',
+                'Scheduler Hints',
             )
 
         # support for additional columns
@@ -2923,6 +2935,12 @@ class ListServer(command.Lister):
                 if c in ('Properties', "properties"):
                     columns += ('Metadata',)
                     column_headers += ('Properties',)
+                if c in (
+                    'scheduler_hints',
+                    "Scheduler Hints",
+                ):
+                    columns += ('scheduler_hints',)
+                    column_headers += ('Scheduler Hints',)
 
             # remove duplicates
             column_headers = tuple(dict.fromkeys(column_headers))
@@ -3089,6 +3107,7 @@ class ListServer(command.Lister):
                         'metadata': format_columns.DictColumn,
                         'security_groups_name': format_columns.ListColumn,
                         'hypervisor_hostname': HostColumn,
+                        'scheduler_hints': format_columns.DictListColumn,
                     },
                 )
                 for s in data

openstackclient/tests/unit/compute/v2/test_server.py

@@ -4603,6 +4603,7 @@ class _TestServerList(TestServer):
         'Pinned Availability Zone',
         'Host',
         'Properties',
+        'Scheduler Hints',
     )
 
     def setUp(self):
@@ -4742,6 +4743,7 @@ class TestServerList(_TestServerList):
                 getattr(s, 'pinned_availability_zone', ''),
                 server.HostColumn(getattr(s, 'hypervisor_hostname')),
                 format_columns.DictColumn(s.metadata),
+                format_columns.DictListColumn(None),
             )
             for s in self.servers
         )
@@ -4790,6 +4792,8 @@ class TestServerList(_TestServerList):
             'Host',
             '-c',
             'Properties',
+            '-c',
+            'Scheduler Hints',
             '--long',
         ]
         verifylist = [
@@ -4812,6 +4816,7 @@ class TestServerList(_TestServerList):
         self.assertIn('Pinned Availability Zone', columns)
         self.assertIn('Host', columns)
         self.assertIn('Properties', columns)
+        self.assertIn('Scheduler Hints', columns)
         self.assertCountEqual(columns, set(columns))
 
     def test_server_list_no_name_lookup_option(self):
@@ -5225,6 +5230,7 @@ class TestServerList(_TestServerList):
                 getattr(s, 'pinned_availability_zone', ''),
                 server.HostColumn(getattr(s, 'hypervisor_hostname')),
                 format_columns.DictColumn(s.metadata),
+                format_columns.DictListColumn(s.scheduler_hints),
             )
             for s in self.servers
         )
@@ -5280,6 +5286,7 @@ class TestServerList(_TestServerList):
                 getattr(s, 'pinned_availability_zone', ''),
                 server.HostColumn(getattr(s, 'hypervisor_hostname')),
                 format_columns.DictColumn(s.metadata),
+                format_columns.DictListColumn(s.scheduler_hints),
                 s.host_status,
             )
             for s in servers
@@ -5317,6 +5324,7 @@ class TestServerListV273(_TestServerList):
         'Pinned Availability Zone',
         'Host',
         'Properties',
+        'Scheduler Hints',
     )
 
     def setUp(self):