Notify on workflow failure

Signed-off-by: Moritz Hoffmann <[email protected]>

Author: antiguru

.github/create-issue-on-failure.md

@@ -0,0 +1,13 @@
+---
+name: "Test build against Timely master"
+about: "Create an issue when the build against Timely master fails"
+title: 'Workflow "{{ env.WORKFLOW_NAME }}" failed'
+labels: "build-failure"
+---
+
+The workflow "**{{ env.WORKFLOW_NAME }}**" failed. See logs:
+https://github.com/{{ env.REPO_SLUG }}/actions/runs/{{ env.RUN_ID }}
+
+Commit: https://github.com/{{ env.REPO_SLUG }}/commit/{{ tools.context.sha }}
+
+// cc: {{ env.MENTION }} — please triage and resolve this issue

.github/workflows/test-timely-master.yml

@@ -5,9 +5,11 @@ on:
       - master
   pull_request:
   workflow_dispatch:
+  schedule:
+    - cron: '38 3 * * *'
 
 jobs:
-  test:
+  tests:
     strategy:
       matrix:
         os:
@@ -23,3 +25,24 @@ jobs:
           toolchain: ${{ matrix.toolchain }}
       - name: Cargo test against Timely master
         run: cd timely_master && cargo test
+
+  notify:
+    name: Notify failed build
+    if: failure() && github.event.pull_request == null
+    needs: [tests]
+    permissions:
+      contents: read
+      issues: write
+    runs-on: ubuntu-latest
+    steps:
+    - uses: JasonEtco/create-an-issue@v2
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        WORKFLOW_NAME: ${{ github.workflow }}
+        REPO_SLUG: ${{ github.repository }}
+        RUN_ID: ${{ github.run_id }}
+        MENTION: '@frankmcsherry, @antiguru'
+      with:
+        filename: '.github/create-issue-on-failure.md'
+        update_existing: true
+        search_existing: open