Code freeze rules (#134)

Author: goruha

.github/mergify.yml

@@ -510,6 +510,28 @@ pull_request_rules:
         remove:
           - rebase
 
+  - name: "Comment on PRs during code freeze and close them"
+    conditions:
+      - and:
+        - "base=main"  # or whichever branch the freeze applies to
+        - "created-at > 2024-11-12"  # Start date of the code freeze
+        - "repository-full-name=cloudposse/terraform-aws-components" # Apply only to cloudposse/terraform-aws-components
+    actions:
+      comment:
+        message: |
+          > [!WARNING]
+          > #### Migration of Components to a New GitHub Organization
+          > **CODE FREEZE 11/12 - 11/17**
+          > We are in the process of migrating each component in this repository to individual repositories under a new GitHub organization.
+          > This change aims to improve the stability, maintainability, and usability of our components.
+          >
+          > [Learn more](https://github.com/cloudposse/terraform-aws-components/issues/1177) about the migration and what to expect.
+      close:
+        message: |
+          This pull request has been closed due to an active **code freeze** during the migration of components to a new GitHub organization.
+          Please reopen it after **11/17** in the new repository under [Cloud Posse's Terraform Component GitHub Organization](https://github.com/cloudposse-terraform-components),
+          if still applicable. Thank you for your understanding.
+
   #- name: mergeable
   #  conditions:
   #    - and: *is_open