Add obsolete warnings

app/api/views/alias_options.py

@@ -27,7 +27,7 @@ def options():
         existing: array of existing aliases
 
     """
-    LOG.warning("/v2/alias/options should be used instead")
+    LOG.warning("/alias/options is obsolete")
     user = g.user
     hostname = request.args.get("hostname")
 
@@ -107,6 +107,8 @@ def options_v2():
 
 
     """
+    LOG.warning("/v2/alias/options is obsolete")
+
     user = g.user
     hostname = request.args.get("hostname")
 
@@ -186,6 +188,7 @@ def options_v3():
 
 
     """
+    LOG.warning("/v3/alias/options is obsolete")
     user = g.user
     hostname = request.args.get("hostname")
 

app/api/views/new_custom_alias.py

@@ -29,6 +29,7 @@ def new_custom_alias():
         409 if the alias already exists
 
     """
+    LOG.warning("/alias/custom/new is obsolete")
     user: User = g.user
     if not user.can_create_new_alias():
         LOG.d("user %s cannot create any custom alias", user)