add node16 image for frontend projects

.github/workflows/pull-request-created.yml

@@ -0,0 +1,25 @@
+name: 'Pull request'
+
+on:
+  pull_request:
+    branches:
+      - master
+
+jobs:
+  build-openjdk11:
+    runs-on: ubuntu-20.04
+    steps:
+      - uses: actions/checkout@v2
+      - name: "Build Docker Image"
+        run: |
+          cd openjdk11
+          docker build -t trisbee/openjdk11 .
+
+  build-node16:
+    runs-on: ubuntu-20.04
+    steps:
+      - uses: actions/checkout@v2
+      - name: "Build Docker Image"
+        run: |
+          cd node16
+          docker build -t trisbee/node16 .

node16/Dockerfile

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+FROM node:16.13.2-alpine
+
+# add packages to system
+RUN apk update
+RUN apk add rsync
+
+# Corepack is included by default with all Node.js installs, but is currently opt-in.
+RUN corepack enable
+RUN yarn set version stable
+
+CMD [""]