Adding standalone trigger for regression testing

.github/workflows/regression.yaml

@@ -176,7 +176,7 @@ jobs:
           fi
           terraform init -backend-config ${{ matrix.test.backend_config }}
           ./${{ matrix.test.terraform_script }} apply
-          terraform taint aws_instance.control_plane
+          terraform taint -allow-missing aws_instance.control_plane
           terraform taint -allow-missing 'aws_instance.worker[0]'
 
       - name: Run the test

.github/workflows/release.yaml

@@ -487,22 +487,23 @@ jobs:
     runs-on: ubuntu-18.04
     needs: [build_airgap]
     steps:
-    - name: Checkout
-      uses: actions/checkout@v2
-
-    - name: Get tags
-      id: get_tag
-      uses: ./actions/version-tag
-
     - name: Copy assets
       uses: ./actions/copy-assets
       env:
         GITHUB_TOKEN: ${{ secrets.NIGHTLY_GH_PAT }}
       with:
-        srcReleaseTag: ${{ steps.get_tag.outputs.GIT_TAG }}
+        srcReleaseTag: ${{ env.GITHUB_REF_NAME }}
         dstReleaseTag: "v0.0.0-nightly"
 
-  regression-test:
+    - name: Get latest tag
+      id: get_latest_tag
+      uses: pozetroninc/github-action-get-latest-release@master
+      with:
+        repository: ${{ github.repository }}
+        excludes: prerelease, draft
+
+  regression_test:
+    if: startsWith(github.ref, 'refs/tags/v') && endsWith(github.ref, '-nightly')
     name: Run regression testing
     runs-on: ubuntu-latest
     steps:
@@ -512,6 +513,8 @@ jobs:
           AWS_SECRET_ACCESS_KEY: ${{ secrets.E2E_TESTIM_AWS_SECRET_ACCESS_KEY }}
           TF_VAR_testim_token: ${{ secrets.TESTIM_ACCESS_TOKEN }}
           E2E_GH_PAT: ${{ secrets.E2E_GH_PAT }}
+          version_tag_old: ${{ steps.get_latest_tag.outputs.release }}
+          version_tag_new: ${{ env.GITHUB_REF_NAME }}
 
   start_kgrid_test:
     runs-on: ubuntu-18.04