ci: send Slack notifications on CI failures

.github/workflows/docs_search_sync.yml

@@ -46,22 +46,8 @@ jobs:
           DEEPSET_API_KEY_DOCS_SEARCH: ${{ secrets.DEEPSET_API_KEY_DOCS_SEARCH }}
         run: python ./.github/utils/docs_search_sync.py
 
-      - name: Send event to Datadog for nightly failures
+      - name: Notify Slack on nightly failure
         if: failure() && github.event_name == 'schedule'
-        uses: masci/datadog@v1
+        uses: deepset-ai/notify-slack-action@v1
         with:
-          api-key: ${{ secrets.CORE_DATADOG_API_KEY }}
-          api-url: https://api.datadoghq.eu
-          events: |
-            - title: "${{ github.workflow }} workflow"
-              text: "Job ${{ github.job }} in branch ${{ github.ref_name }}"
-              alert_type: "error"
-              source_type_name: "Github"
-              host: ${{ github.repository_owner }}
-              tags:
-                - "project:${{ github.repository }}"
-                - "job:${{ github.job }}"
-                - "run_id:${{ github.run_id }}"
-                - "workflow:${{ github.workflow }}"
-                - "branch:${{ github.ref_name }}"
-                - "url:https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}"
+          slack-webhook-url: ${{ secrets.SLACK_WEBHOOK_URL_NOTIFICATIONS }}

.github/workflows/e2e.yml

@@ -40,22 +40,8 @@ jobs:
     - name: Run tests
       run: hatch run e2e:test
 
-    - name: Send event to Datadog
+    - name: Notify Slack on nightly failure
       if: failure() && github.event_name == 'schedule'
-      uses: masci/datadog@v1
+      uses: deepset-ai/notify-slack-action@v1
       with:
-        api-key: ${{ secrets.CORE_DATADOG_API_KEY }}
-        api-url: https://api.datadoghq.eu
-        events: |
-          - title: "${{ github.workflow }} workflow"
-            text: "Job ${{ github.job }} in branch ${{ github.ref_name }}"
-            alert_type: "error"
-            source_type_name: "Github"
-            host: ${{ github.repository_owner }}
-            tags:
-              - "project:${{ github.repository }}"
-              - "job:${{ github.job }}"
-              - "run_id:${{ github.run_id }}"
-              - "workflow:${{ github.workflow }}"
-              - "branch:${{ github.ref_name }}"
-              - "url:https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}"
+        slack-webhook-url: ${{ secrets.SLACK_WEBHOOK_URL_NOTIFICATIONS }}

.github/workflows/license_compliance.yml

@@ -10,7 +10,6 @@ on:
   schedule:
     - cron: "0 0 * * *" # every day at midnight
 env:
-  CORE_DATADOG_API_KEY: ${{ secrets.CORE_DATADOG_API_KEY }}
   PYTHON_VERSION: "3.10"
 
 jobs:
@@ -57,37 +56,8 @@ jobs:
         if: ${{ always() }}
         run: echo "${{ steps.license_check_report.outputs.report }}"
 
-      - name: Calculate alert data
-        id: calculator
-        shell: bash
-        if: (success() || failure())
-        run: |
-          if [ "${{ job.status }}" = "success" ]; then
-            echo "alert_type=success" >> "$GITHUB_OUTPUT";
-          else
-            echo "alert_type=error" >> "$GITHUB_OUTPUT";
-          fi
-
-      - name: Send event to Datadog
-        # This step would fail when running in PRs opened from forks since
-        # secrets are not accessible.
-        # To prevent showing bogus failures in those PRs we skip the step.
-        # The workflow will fail in any case if the actual check fails in the previous steps.
-        if: (success() || failure()) && env.CORE_DATADOG_API_KEY != ''
-        uses: masci/datadog@v1
+      - name: Notify Slack on failure
+        if: failure()
+        uses: deepset-ai/notify-slack-action@v1
         with:
-          api-key: ${{ env.CORE_DATADOG_API_KEY }}
-          api-url: https://api.datadoghq.eu
-          events: |
-            - title: "${{ github.job }} in ${{ github.workflow }} workflow"
-              text: "License compliance check: direct dependencies only."
-              alert_type: "${{ steps.calculator.outputs.alert_type }}"
-              source_type_name: "Github"
-              host: ${{ github.repository_owner }}
-              tags:
-                - "project:${{ github.repository }}"
-                - "job:${{ github.job }}"
-                - "run_id:${{ github.run_id }}"
-                - "workflow:${{ github.workflow }}"
-                - "branch:${{ github.ref_name }}"
-                - "url:https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}"
+          slack-webhook-url: ${{ secrets.SLACK_WEBHOOK_URL_NOTIFICATIONS }}

.github/workflows/slow.yml

@@ -154,25 +154,11 @@ jobs:
       - name: Run tests
         run: hatch run test:integration-only-slow
 
-      - name: Send event to Datadog for nightly failures
+      - name: Notify Slack on nightly failure
         if: failure() && github.event_name == 'schedule'
-        uses: masci/datadog@v1
+        uses: deepset-ai/notify-slack-action@v1
         with:
-          api-key: ${{ secrets.CORE_DATADOG_API_KEY }}
-          api-url: https://api.datadoghq.eu
-          events: |
-            - title: "${{ github.workflow }} workflow"
-              text: "Job ${{ github.job }} in branch ${{ github.ref_name }}"
-              alert_type: "error"
-              source_type_name: "Github"
-              host: ${{ github.repository_owner }}
-              tags:
-                - "project:${{ github.repository }}"
-                - "job:${{ github.job }}"
-                - "run_id:${{ github.run_id }}"
-                - "workflow:${{ github.workflow }}"
-                - "branch:${{ github.ref_name }}"
-                - "url:https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}"
+          slack-webhook-url: ${{ secrets.SLACK_WEBHOOK_URL_NOTIFICATIONS }}
 
   slow-integration-tests-completed:
     # This job always runs and succeeds if all tests succeed or are skipped. It is required by Branch Protection rules.