Add GitHub Actions workflows for building and deploying application

.github/workflows/build.yml

@@ -0,0 +1,50 @@
+name: Build Container Image
+
+on:
+  workflow_dispatch:
+    inputs:
+      tag:
+        description: 'Image tag'
+        required: false
+        default: 'latest'
+        type: string
+
+env:
+  REGISTRY: ${{ secrets.CONTAINER_REGISTRY }}
+  IMAGE_NAME: ${{ secrets.IMAGE_NAME }}
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+      
+    - name: Log in to Container Registry
+      uses: docker/login-action@v3
+      with:
+        registry: ${{ env.REGISTRY }}
+        username: ${{ secrets.REGISTRY_USERNAME }}
+        password: ${{ secrets.REGISTRY_PASSWORD }}
+        
+    - name: Extract metadata
+      id: meta
+      uses: docker/metadata-action@v5
+      with:
+        images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+        tags: |
+          type=raw,value=${{ inputs.tag }}
+          type=sha,prefix={{branch}}-
+          
+    - name: Build and push Docker image
+      uses: docker/build-push-action@v5
+      with:
+        context: .
+        push: true
+        tags: ${{ steps.meta.outputs.tags }}
+        labels: ${{ steps.meta.outputs.labels }}
+
+    - name: Output image tags
+      run: |
+        echo "Built and pushed image tags: ${{ steps.meta.outputs.tags }}"