Split the workflow to trigger e2e test in 2 different jobs (#2258)

Signed-off-by: jorturfer <jorge_turrado@hotmail.es>

.github/workflows/pr-e2e.yml

@@ -1,21 +1,19 @@
 name: pr-e2e-tests
-concurrency: e2e-tests
 on:
   issue_comment:
     types: [created]
 
 jobs:
-  build:
+  check:
     runs-on: ubuntu-latest
-    container: ghcr.io/kedacore/build-tools:main
+    name: Comment evaluate
+    outputs:
+      run-e2e: ${{ steps.check-comment.outputs.triggered == 'true' && steps.check-permission.outputs.has-permission }}
     steps:
-      - uses: actions/checkout@v2
-
       - uses: khan/pull-request-comment-trigger@master
         id: check-comment
         with:
           trigger: '/run-e2e'
-          reaction: rocket
           prefix_only: true
         env:
           GITHUB_TOKEN: '${{ secrets.GITHUB_TOKEN }}'
@@ -29,8 +27,25 @@ jobs:
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
-      - name: Checkout Pull Request
+      - name: React to comment with rocket
+        uses: dkershner6/reaction-action@v1
         if: steps.check-comment.outputs.triggered == 'true' && steps.check-permission.outputs.has-permission
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          commentId: ${{ github.event.comment.id }}
+          reaction: "rocket"
+
+  run-test:
+    needs: check
+    runs-on: ubuntu-latest
+    name: Execute e2e tests
+    container: ghcr.io/kedacore/build-tools:main
+    concurrency: e2e-tests
+    if: needs.check.outputs.run-e2e == '1'
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Checkout Pull Request
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         id: checkout
@@ -42,7 +57,6 @@ jobs:
           echo "::set-output name=pr_num::$PR_NUM"
 
       - name: Login to GitHub Container Registry
-        if: steps.check-comment.outputs.triggered == 'true' && steps.check-permission.outputs.has-permission
         uses: docker/login-action@v1
         with:
           registry: ghcr.io
@@ -50,14 +64,12 @@ jobs:
           password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Publish on GitHub Container Registry
-        if: steps.check-comment.outputs.triggered == 'true' && steps.check-permission.outputs.has-permission
         run: make publish
         env:
           E2E_IMAGE_TAG: "pr-${{ steps.checkout.outputs.pr_num }}"
 
       - name: Run end to end tests
         continue-on-error: true
-        if: steps.check-comment.outputs.triggered == 'true' && steps.check-permission.outputs.has-permission
         id: test
         env:
           AZURE_SUBSCRIPTION: ${{ secrets.AZURE_SUBSCRIPTION }}
@@ -89,7 +101,7 @@ jobs:
 
       - name: React to comment with success
         uses: dkershner6/reaction-action@v1
-        if: steps.check-comment.outputs.triggered == 'true' && steps.check-permission.outputs.has-permission && steps.test.outcome == 'success'
+        if: steps.test.outcome == 'success'
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
           commentId: ${{ github.event.comment.id }}
@@ -97,7 +109,7 @@ jobs:
 
       - name: React to comment with failure
         uses: dkershner6/reaction-action@v1
-        if: steps.check-comment.outputs.triggered == 'true' && steps.check-permission.outputs.has-permission && steps.test.outcome != 'success'
+        if: steps.test.outcome != 'success'
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
           commentId: ${{ github.event.comment.id }}