Adds acceptance test runs triggered by labels

.github/workflows/acceptance-tests.yml

@@ -0,0 +1,53 @@
+name: Acceptance Tests
+
+on:
+  pull_request:
+    types: [labeled]
+
+jobs:
+  acceptance-tests:
+    runs-on: ubuntu-latest
+    steps:
+
+      - name: Parse Context From Environment
+        run: |
+          echo ::set-env name=HEAD_SHA::$(
+            jq -rc '.pull_request.head.sha' $GITHUB_EVENT_PATH
+          )
+          echo ::set-env name=LABEL_NAME::$(
+            jq -rc .label.name $GITHUB_EVENT_PATH
+          )
+
+      - name: Parse Arguments From Label Name
+        run: |
+          echo ::set-env name=RUN_FILTER::$(
+            echo $LABEL_NAME | cut -d/ -f 2
+          )
+
+      - name: Match Expected Label Prefix
+        run: echo ${LABEL_NAME} | egrep -q "^acceptance-test/"
+
+      - name: Checkout
+        uses: actions/[email protected]
+        with:
+          ref: ${{ env.HEAD_SHA }}
+
+      - name: Generate Test Fixtures
+        run: |
+          openssl req -x509 -newkey rsa:4096 -days 1 -nodes \
+            -subj "/C=US/ST=CA/L=San Francisco/O=HashiCorp, Inc./CN=localhost" \
+            -keyout github/test-fixtures/key.pem -out github/test-fixtures/cert.pem
+
+      - name: Acceptance Tests
+        uses: terraformtesting/[email protected]
+        with:
+          RUN_FILTER: ${{ env.RUN_FILTER }}
+          GITHUB_ORGANIZATION: terraformtesting
+          GITHUB_TEST_USER: github-terraform-test-user
+          GITHUB_TEST_USER_NAME: "Test User"
+          GITHUB_TEST_USER_EMAIL: [email protected]
+          GITHUB_TEST_USER_TOKEN: ${{ secrets.GITHUB_TEST_USER_TOKEN }}
+          GITHUB_TEST_COLLABORATOR: github-terraform-test-collaborator
+          GITHUB_TEST_COLLABORATOR_TOKEN: ${{ secrets.GITHUB_TEST_COLLABORATOR_TOKEN }}
+          GITHUB_TEMPLATE_REPOSITORY: terraform-template-module
+          GITHUB_TEMPLATE_REPOSITORY_RELEASE_ID: 23826477