add report failed build step

Signed-off-by: Jade Carino <[email protected]>

.github/workflows/build.yaml

@@ -126,4 +126,17 @@ jobs:
         env: 
           ARGOCD_AUTH_TOKEN: ${{ secrets.ARGOCD_TOKEN }}
         run: |
-          docker run --env ARGOCD_AUTH_TOKEN=${{ env.ARGOCD_AUTH_TOKEN }} --rm -v ${{ github.workspace }}:/var/workspace ghcr.io/galasa-dev/argocdcli:main app wait ${{ env.BRANCH }}-simplatform --resource apps:Deployment:simplatform-${{ env.BRANCH }} --health --server argocd.galasa.dev
+          docker run --env ARGOCD_AUTH_TOKEN=${{ env.ARGOCD_AUTH_TOKEN }} --rm -v ${{ github.workspace }}:/var/workspace ghcr.io/galasa-dev/argocdcli:main app wait ${{ env.BRANCH }}-simplatform --resource apps:Deployment:simplatform-${{ env.BRANCH }} --health --server argocd.galasa.dev
+
+  report-failure:
+    name: Report failure in workflow
+    runs-on: ubuntu-latest
+    needs: [log-github-ref, build-simplatform]
+    if: failure()
+
+    steps:
+      - name: Report failure in workflow to Slack
+        env: 
+          SLACK_WEBHOOK: ${{ secrets.SLACK_WEBHOOK }}
+        run : |
+          docker run --rm -v ${{ github.workspace }}:/var/workspace ghcr.io/galasa-dev/galasabld-ibm:main slackpost workflows --repo "simplatform" --workflowName "${{ github.workflow }}" --workflowRunNum "${{ github.run_id }}" --ref "${{ env.BRANCH }}" --hook "${{ env.SLACK_WEBHOOK }}"