gitlab-ci: add scheduled pipeline to triage inactive issues and MRs

.gitlab-ci.yml

@@ -7,6 +7,7 @@
 stages:
   - test
   - deploy
+  - triage
 
 .fedora_install: &fedora_install
   before_script:
@@ -196,3 +197,11 @@ pages:
       - public
   only:
     - master
+
+triage:issues:
+  stage: triage
+  script:
+    - gem install gitlab-triage
+    - gitlab-triage --token $API_TOKEN --source-id $SOURCE_ID
+  only:
+    - schedules

.triage-policies.yml

@@ -0,0 +1,67 @@
+host_url: https://gitlab.freedesktop.org
+
+resource_rules:
+  issues:
+    rules:
+      - name: Close issues with not activity for 6 months
+        conditions:
+          date:
+            attribute: updated_at
+            condition: older_than
+            interval_type: months
+            interval: 6
+          state: opened
+        actions:
+            comment: |
+                "This issue has been inactive for 6 months, closing automatically, please reopen if you think the issue is still relevant."
+            status: close
+            labels:
+                - auto-closed
+      - name: Close RFE with not activity for 12 months
+        conditions:
+          date:
+            attribute: updated_at
+            condition: older_than
+            interval_type: months
+            interval: 12
+          state: opened
+          labels:
+              - enhancement
+        actions:
+            comment: |
+                "This enhancement issue has been inactive for 12 months, closing automatically, please reopen if you think the issue is still relevant."
+            status: close
+            labels:
+                - auto-closed
+      - name: Clear auto-closed label for open issues
+        conditions:
+          state: opened
+          labels:
+                - auto-closed
+        actions:
+            remove_labels:
+                - auto-closed
+  merge_requests:
+    rules:
+      - name: Close MRs with no activity after 2 month
+        conditions:
+          date:
+            attribute: updated_at
+            condition: older_than
+            interval_type: months
+            interval: 2
+          state: opened
+        actions:
+            comment: |
+                "This MR has been inactive for more than 2 months, closing automatically, please reopen if you think it is still relevant."
+            status: close
+            labels:
+                - auto-closed
+      - name: Clear auto-closed label for open MRs
+        conditions:
+          state: opened
+          labels:
+                - auto-closed
+        actions:
+            remove_labels:
+                - auto-closed