Add GH CI setup

Author: nmervaillie

.github/workflows/ci.yml

@@ -0,0 +1,48 @@
+name: CI
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Set up JDK 17
+        uses: actions/setup-java@v3
+        with:
+          distribution: 'adopt'
+          java-version: '17'
+
+      - name: Cache Maven packages
+        uses: actions/cache@v3
+        with:
+          path: ~/.m2/repository
+          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
+          restore-keys: ${{ runner.os }}-maven
+
+      - name: Cache Docker layers
+        uses: actions/cache@v3
+        with:
+          path: /var/lib/docker
+          key: ${{ runner.os }}-docker-${{ hashFiles('Dockerfile') }}
+          restore-keys: |
+            ${{ runner.os }}-docker-
+
+      - name: Build with Maven
+        run: mvn clean install --fail-at-end
+
+      - name: Run Unit Tests
+        run: mvn test
+
+      - name: Run Integration Tests
+        run: mvn verify