{ACR} Migrate helm deprecation announcement (#31194)

* Initial helm announce

* Use deprecate info

* Fix

* Apply suggestions from code review

Co-authored-by: Xing Zhou <Zhou.Xing@microsoft.com>

---------

Co-authored-by: Xing Zhou <Zhou.Xing@microsoft.com>

Author: ReaNAiveD

src/azure-cli/azure/cli/command_modules/acr/_breaking_change.py

@@ -3,7 +3,25 @@
 # Licensed under the MIT License. See License.txt in the project root for license information.
 # --------------------------------------------------------------------------------------------
 
-from azure.cli.core.breaking_change import register_output_breaking_change
+from azure.cli.core.breaking_change import register_output_breaking_change, register_command_group_deprecate
 
 register_output_breaking_change(command_name='acr login',
                                 description='Exit code will be 1 if command fails for docker login')
+
+helm_bc_msg = 'In November 2020, Helm 2 reached end of life. ' \
+              'Starting on March 30th, 2025 Azure Container Registry will no longer support Helm 2. ' \
+              'Therefore, the legacy "Helm repositories" functionality will also be retired. ' \
+              'We recommend that you transition to Helm 3 immediately.\n' \
+              'Starting January 21st, 2025 the CLI command `az acr helm push` was retired to ' \
+              'prevent pushing new Helm charts to legacy Helm repositories.\n' \
+              'Starting March 30th, 2025 the CLI command group `az acr helm` was retired, ' \
+              'ending all legacy Helm repository capabilities in Azure Container Registry.\n' \
+              'All Helm charts not stored as an OCI artifact ' \
+              'was deleted from Azure Container Registry on March 30th, 2025.\n' \
+              'Learn how to find all Helm charts stored in a Helm repository here: `az acr helm list`. ' \
+              'If the Helm chart you are using is listed ' \
+              'then it is stored in a legacy Helm repository and is at risk of deletion.\n' \
+              'For more information on managing and deploying applications for Kubernetes, ' \
+              'see https://aka.ms/acr/helm.'
+register_command_group_deprecate(command_group='acr helm', redirect='Helm v3 commands', message=helm_bc_msg,
+                                 target_version='Sept 30th, 2025')

src/azure-cli/azure/cli/command_modules/acr/commands.py

@@ -360,24 +360,13 @@ def load_command_table(self, _):
         g.show_command('show', 'acr_config_authentication_as_arm_show')
         g.command('update', 'acr_config_authentication_as_arm_update')
 
-    def _helm_deprecate_message(self):
-        msg = "This {} has been deprecated and will be removed in future release.".format(self.object_type)
-        msg += " Use '{}' instead.".format(self.redirect)
-        msg += " Learn more about storing Helm charts at"
-        msg += " https://aka.ms/acr/helm"
-        return msg
-
-    helm_deprecate_info = self.deprecate(redirect="Helm v3 commands", message_func=_helm_deprecate_message)
-
-    with self.command_group('acr helm', acr_helm_util, deprecate_info=helm_deprecate_info) as g:
-        g.command('list', 'acr_helm_list', table_transformer=helm_list_output_format,
-                  deprecate_info=helm_deprecate_info)
-        g.show_command('show', 'acr_helm_show', table_transformer=helm_show_output_format,
-                       deprecate_info=helm_deprecate_info)
-        g.command('delete', 'acr_helm_delete', deprecate_info=helm_deprecate_info)
-        g.command('push', 'acr_helm_push', deprecate_info=helm_deprecate_info)
-        g.command('repo add', 'acr_helm_repo_add', deprecate_info=helm_deprecate_info)
-        g.command('install-cli', 'acr_helm_install_cli', is_preview=True, deprecate_info=helm_deprecate_info)
+    with self.command_group('acr helm', acr_helm_util) as g:
+        g.command('list', 'acr_helm_list', table_transformer=helm_list_output_format)
+        g.show_command('show', 'acr_helm_show', table_transformer=helm_show_output_format)
+        g.command('delete', 'acr_helm_delete')
+        g.command('push', 'acr_helm_push')
+        g.command('repo add', 'acr_helm_repo_add')
+        g.command('install-cli', 'acr_helm_install_cli', is_preview=True)
 
     with self.command_group('acr network-rule', acr_network_rule_util) as g:
         g.command('list', 'acr_network_rule_list')