{Core} Add breaking change warning for azure stack users (#31160)

* {core} add breaking change warning for azure stack users

* add breaking change messages

Author: kairu-ms

src/azure-cli-core/azure/cli/core/_breaking_change.py

@@ -0,0 +1,15 @@
+# --------------------------------------------------------------------------------------------
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License. See License.txt in the project root for license information.
+# --------------------------------------------------------------------------------------------
+# pylint: disable=line-too-long
+
+from azure.cli.core.breaking_change import AzCLIOtherChange, register_conditional_breaking_change
+
+register_conditional_breaking_change(
+    tag='CloudProfilesDeprecate',
+    breaking_change=AzCLIOtherChange(
+        cmd='',
+        message="Starting from 2.73.0, the azure stack profiles ('2017-03-09-profile', '2018-03-01-hybrid', '2019-03-01-hybrid', '2020-09-01-hybrid') will be deprecated. Please use the 'latest' profile or the CLI 2.66.* (LTS) version instead."
+    )
+)

src/azure-cli-core/azure/cli/core/cloud.py

@@ -622,13 +622,16 @@ def get_active_cloud(cli_ctx=None):
         from azure.cli.core import get_default_cli
         cli_ctx = get_default_cli()
     try:
-        return get_cloud(cli_ctx, get_active_cloud_name(cli_ctx))
+        cloud = get_cloud(cli_ctx, get_active_cloud_name(cli_ctx))
     except CloudNotRegisteredException as err:
         logger.warning(err)
         default_cloud_name = get_default_cloud_name()
         logger.warning("Resetting active cloud to'%s'.", default_cloud_name)
         _set_active_cloud(cli_ctx, default_cloud_name)
-        return get_cloud(cli_ctx, default_cloud_name)
+        cloud = get_cloud(cli_ctx, default_cloud_name)
+    if cloud.profile != 'latest':
+        logger.warning("Cloud profile '%s' will be deprecated starting from 2.73.0. Please use the 'latest' profile or the CLI 2.66.* (LTS) version instead.", cloud.profile)
+    return cloud
 
 
 def get_cloud_subscription(cloud_name):