ci: open an issue if a scheduled workflow fails

.github/workflows/example-charm-charmcraft-test.yaml

@@ -65,3 +65,10 @@ jobs:
         # allocator (runs against the runner itself) instead of launching
         # a nested LXD VM for the spread target.
         run: charmcraft test "craft:ubuntu-24.04:spread/integration/${{ matrix.task }}"
+
+  open-issue-on-failure-if-scheduled:
+    if: ${{ failure() && github.event_name == 'schedule' }}
+    needs: [collect-spread-jobs, integration]
+    permissions:
+      issues: write
+    uses: ./.github/workflows/notify-scheduled-failure.yaml

.github/workflows/example-charm-integration-tests.yaml

@@ -76,3 +76,10 @@ jobs:
         run: |
           cd ${{ matrix.dir }}
           tox -e integration
+
+  open-issue-on-failure-if-scheduled:
+    if: ${{ failure() && github.event_name == 'schedule' }}
+    needs: [machine-examples-integration, k8s-examples-integration]
+    permissions:
+      issues: write
+    uses: ./.github/workflows/notify-scheduled-failure.yaml

.github/workflows/integration.yaml

@@ -71,3 +71,10 @@ jobs:
         # tracing tests each deploy the tempo stack into their own fresh
         # model, so that file needs longer than the others.
         timeout-minutes: ${{ matrix.test == 'test/integration/test_tracing.py' && 40 || 20 }}
+
+  open-issue-on-failure-if-scheduled:
+    if: ${{ failure() && github.event_name == 'schedule' }}
+    needs: [collect, integration]
+    permissions:
+      issues: write
+    uses: ./.github/workflows/notify-scheduled-failure.yaml

.github/workflows/notify-scheduled-failure.yaml

@@ -0,0 +1,26 @@
+name: Notify on scheduled failure
+
+# Reusable workflow: opens an issue when a scheduled workflow fails.
+# Callers gate the invocation with `if: failure() && github.event_name == 'schedule'`
+# and pass `permissions: issues: write`.
+
+on:
+  workflow_call:
+
+jobs:
+  open-issue:
+    runs-on: ubuntu-latest
+    permissions:
+      issues: write
+    steps:
+      - name: Create issue on failure
+        env:
+          GH_TOKEN: ${{ github.token }}
+          WORKFLOW_NAME: ${{ github.workflow }}
+          REPO: ${{ github.repository }}
+          RUN_URL: ${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}
+        run: |
+          gh issue create \
+            --repo "$REPO" \
+            --title "Scheduled workflow '$WORKFLOW_NAME' failed" \
+            --body "Scheduled workflow '$WORKFLOW_NAME' failed: $RUN_URL"

.github/workflows/smoke.yaml

@@ -44,3 +44,10 @@ jobs:
         with:
           name: charmcraft-logs
           path: /home/runner/.local/state/charmcraft/log/*.log
+
+  open-issue-on-failure-if-scheduled:
+    if: ${{ failure() && github.event_name == 'schedule' }}
+    needs: [test]
+    permissions:
+      issues: write
+    uses: ./.github/workflows/notify-scheduled-failure.yaml

.github/workflows/tiobe.yaml

@@ -35,3 +35,10 @@ jobs:
           ticsAuthToken: ${{ secrets.TICSAUTHTOKEN }}
           project: operator
           installTics: true
+
+  open-issue-on-failure-if-scheduled:
+    if: ${{ failure() && github.event_name == 'schedule' }}
+    needs: [TICS]
+    permissions:
+      issues: write
+    uses: ./.github/workflows/notify-scheduled-failure.yaml

.github/workflows/update-best-practice-doc.yaml

@@ -56,3 +56,10 @@ jobs:
         working-directory: operator
         env:
             GITHUB_TOKEN: ${{ secrets.UPDATE_DOCS_ACCESS_TOKEN }}
+
+  open-issue-on-failure-if-scheduled:
+    if: ${{ failure() && github.event_name == 'schedule' }}
+    needs: [update-docs]
+    permissions:
+      issues: write
+    uses: ./.github/workflows/notify-scheduled-failure.yaml

.github/workflows/update-charm-tests.yaml

@@ -53,3 +53,10 @@ jobs:
           fi
         env:
           GITHUB_TOKEN: ${{ secrets.UPDATE_CHARM_PINS_ACCESS_TOKEN }}
+
+  open-issue-on-failure-if-scheduled:
+    if: ${{ failure() && github.event_name == 'schedule' }}
+    needs: [update-pins]
+    permissions:
+      issues: write
+    uses: ./.github/workflows/notify-scheduled-failure.yaml