Adds multi node test workflow (#256)

Author: dbbaughe

.github/workflows/multi-node-test-workflow.yml

@@ -0,0 +1,27 @@
+name: Multi node test workflow
+# This workflow is triggered on pull requests to master
+on:
+  pull_request:
+    branches:
+      - master
+  push:
+    branches:
+      - master
+
+jobs:
+  build:
+    # Job name
+    name: Build Index Management
+    # This job runs on Linux
+    runs-on: ubuntu-latest
+    steps:
+      # This step uses the checkout Github action: https://github.com/actions/checkout
+      - name: Checkout Branch
+        uses: actions/checkout@v2
+      # This step uses the setup-java Github action: https://github.com/actions/setup-java
+      - name: Set Up JDK 14
+        uses: actions/setup-java@v1
+        with:
+          java-version: 14
+      - name: Run integration tests with multi node config
+        run: ./gradlew integTest -PnumNodes=3