Added resources for the CICD setup

.github/workflows/build.yml

@@ -0,0 +1,28 @@
+name: Build and Deploy
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+
+    - name: Set up JDK 17
+      uses: actions/setup-java@v3
+      with:
+        java-version: '17'
+        distribution: 'temurin'
+        cache: maven
+    
+    - name: Build with Maven
+      run: ./mvnw package -B
+    
+    - name: Build Docker Image
+      run: docker build -t petclinic:${{ github.sha }} .
+
+    - name: Test
+      run: ./mvnw test