Trigger workflow after successful main builds

Author: mads-hartmann

.github/workflows/preview-env-check-regressions.yml

@@ -1,5 +1,9 @@
 name: "Preview environment regression check"
 on:
+    workflow_run:
+        workflows: ["Build"]
+        types: [completed]
+        branches: ["main"]
     workflow_dispatch:
         inputs:
             name:
@@ -13,24 +17,56 @@ on:
                 required: false
                 default: harvester
 jobs:
+    configuration:
+        name: Configuration
+        runs-on: [self-hosted]
+        outputs:
+            skip: ${{ steps.configuration.outputs.skip }}
+            name: ${{ steps.configuration.outputs.name }}
+            version: ${{ steps.configuration.outputs.version }}
+            infrastructure_provider: ${{ steps.configuration.outputs.infrastructure_provider }}
+        steps:
+            - name: "Set outputs"
+              id: configuration
+              run: |
+                  if [[ '${{ github.event.inputs.name }}' != '' ]]; then
+                      # The workflow was triggered by workflow_dispatch
+                      {
+                          echo "version=${{ github.event.inputs.version }}"
+                          echo "name=${{ github.event.inputs.name }}"
+                          echo "infrastructure_provider=${{ github.event.inputs.infrastructure_provider }}"
+                          echo "skip=false"
+                      } >> $GITHUB_OUTPUT
+                  else
+                      # The workflow was triggered by workflow_run
+                      {
+                          echo "version=main-gha.${{ github.event.workflow_run.run_number }}"
+                          echo "name=preview-regression-check-main-${{ github.run_id }}-${{ github.run_attempt }}"
+                          echo "infrastructure_provider=harvester"
+                          echo "skip=${{ github.event.workflow_run.conclusion == 'failure' }}"
+                      } >> $GITHUB_OUTPUT
+                  fi
     check:
         name: Check for regressions
+        needs: [configuration]
+        if: ${{ needs.configuration.outputs.skip == 'false' }}
         runs-on: [self-hosted]
         steps:
             - uses: actions/checkout@v3
             - name: Create preview environment infrastructure
               uses: ./.github/actions/preview-create
               with:
-                  name: ${{ github.event.inputs.name }}
-                  infrastructure_provider: ${{ github.event.inputs.infrastructure_provider }}
+                  name: ${{ needs.configuration.outputs.name }}
+                  infrastructure_provider: ${{ needs.configuration.outputs.infrastructure_provider }}
+                  large_vm: false
                   sa_key: ${{ secrets.GCP_CREDENTIALS }}
             - name: Deploy Gitpod to the preview environment
               id: deploy-gitpod
               uses: ./.github/actions/deploy-gitpod
               with:
-                  name: ${{ github.event.inputs.name }}
+                  name: ${{ needs.configuration.outputs.name }}
                   sa_key: ${{ secrets.GCP_CREDENTIALS }}
-                  version: ${{ github.event.inputs.version}}
+                  version: ${{ needs.configuration.outputs.version}}
             - name: Check
               run: |
                   echo "No regressions caught because I didn't check anything 🤡 Sleeping for 2 minutes."
@@ -39,5 +75,5 @@ jobs:
               if: always()
               uses: ./.github/actions/delete-preview
               with:
-                  name: ${{ github.event.inputs.name }}
+                  name: ${{ needs.configuration.outputs.name }}
                   sa_key: ${{ secrets.GCP_CREDENTIALS }}