Add 'Host Status' to 'server list --long' with >= v2.16

Currently, the 'Host Status' field is shown only for 'server show' but
not for 'server list'. The host_status can be helpful for users who are
having issues with servers that show a status of ACTIVE, as it can show
a hint about the compute host status when nova policy is configured to
allow it.

Story: 2009689
Task: 44003

Change-Id: I6209cf52044218b7b32ab2fa5712574f12ba2f5f

1 files changed, 15 insertions, 0 deletions

diff --git a/openstackclient/compute/v2/server.py b/openstackclient/compute/v2/server.py
index 291244e7..436c2597 100644
--- a/openstackclient/compute/v2/server.py
+++ b/openstackclient/compute/v2/server.py
@@ -2569,6 +2569,21 @@ class ListServer(command.Lister):
             else:
                 s.security_groups_name = []
 
+        # The host_status field contains the status of the compute host the
+        # server is on. It is only returned by the API when the nova-api
+        # policy allows. Users can look at the host_status field when, for
+        # example, their server has status ACTIVE but is unresponsive. The
+        # host_status field can indicate a possible problem on the host
+        # it's on, providing useful information to a user in this
+        # situation.
+        if (
+            compute_client.api_version >= api_versions.APIVersion('2.16') and
+            parsed_args.long
+        ):
+            if any([hasattr(s, 'host_status') for s in data]):
+                columns += ('Host Status',)
+                column_headers += ('Host Status',)
+
         table = (
             column_headers,
             (