Add workflow to push CI metrics to Datadog (#4336)

.github/workflows/ci_metrics.yml

@@ -0,0 +1,24 @@
+name: CI Metrics
+
+on:
+  workflow_run:
+    workflows:
+      - "end-to-end"
+      - "Linting"
+      - "Tests"
+      - "REST API Tests"
+    types:
+      - completed
+  pull_request:
+    types:
+      - opened
+      - closed
+jobs:
+  send:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: int128/datadog-actions-metrics@v1
+        with:
+          datadog-api-key: ${{ secrets.DATADOG_API_KEY }}
+          datadog-site: "datadoghq.eu"
+          collect-job-metrics: true

.github/workflows/e2e.yml

@@ -1,3 +1,4 @@
+# If you change this name also do it in ci_metrics.yml
 name: end-to-end
 
 on:

.github/workflows/linting-skipper.yml

@@ -1,4 +1,4 @@
-# If you change this name also do it in linting.yml
+# If you change this name also do it in linting.yml and ci_metrics.yml
 name: Linting
 
 on:

.github/workflows/linting.yml

@@ -1,4 +1,4 @@
-# If you change this name also do it in linting-skipper.yml
+# If you change this name also do it in linting-skipper.yml and ci_metrics.yml
 name: Linting
 
 on:

.github/workflows/rest_api_tests.yml

@@ -1,3 +1,4 @@
+# If you change this name also do it in ci_metrics.yml
 name: REST API Tests
 
 on:

.github/workflows/tests.yml

@@ -1,3 +1,4 @@
+# If you change this name also do it in tests_skipper.yml and ci_metrics.yml
 name: Tests
 
 on:

.github/workflows/tests_skipper.yml

@@ -1,3 +1,4 @@
+# If you change this name also do it in tests.yml and ci_metrics.yml
 name: Tests
 
 on: