Fix error message when deleting a non-existing AZ

Deleting a non-existing AZ returned an error message from the API
because the request included "?id=<az_name>" in the URL while id is not
a valid parameter for AZs.

Closes-Bug: #2081189
Change-Id: Ia2a3870fb402435a9b9524ab6aefced70f33405e

octaviaclient/osc/v2/utils.py

@@ -111,9 +111,11 @@ def _find_resource(list_funct, resource_name, root_tag, name, parent=None):
             raise osc_exc.CommandError(msg)
 
         # Try by ID next
-        resource = list_funct(*parent_args, id=name)[root_tag]
-        if len(resource) == 1:
-            return resource[0]
+        # Availability Zones don't support the id parameter
+        if resource_name != "availability_zones":
+            resource = list_funct(*parent_args, id=name)[root_tag]
+            if len(resource) == 1:
+                return resource[0]
 
     # We didn't find what we were looking for, raise a consistent error.
     msg = "Unable to locate {0} in {1}".format(name, resource_name)

releasenotes/notes/fix-delete-az-message-9caf48f7c685d80e.yaml

@@ -0,0 +1,7 @@
+---
+fixes:
+  - |
+    Fixed the incorrect error message returned when deleting a non-existing
+    availability zone, it now explicitly mentions that the availability zone
+    does not exist.
+