Add workflow for docker publishing

Author: bradcypert

.github/workflows/docker-build.yml

@@ -0,0 +1,42 @@
+name: Build and Push Docker Image
+
+on:
+  push:
+    tags:
+      - 'v*'  # Triggers on version tags like v1.0.0, v2.1.3, etc.
+
+jobs:
+  build-and-push:
+    runs-on: ubuntu-latest
+    
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+      
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v3
+      
+    - name: Log in to Docker Hub
+      uses: docker/login-action@v3
+      with:
+        username: ${{ secrets.DOCKERHUB_USERNAME }}
+        password: ${{ secrets.DOCKERHUB_TOKEN }}
+        
+    - name: Extract tag name
+      id: extract_tag
+      run: echo "tag=${GITHUB_REF#refs/tags/}" >> $GITHUB_OUTPUT
+      
+    - name: Build and push Docker image
+      uses: docker/build-push-action@v5
+      with:
+        context: .
+        push: true
+        tags: |
+          ${{ secrets.DOCKERHUB_USERNAME }}/dust:${{ steps.extract_tag.outputs.tag }}
+          ${{ secrets.DOCKERHUB_USERNAME }}/dust:latest
+        platforms: linux/amd64,linux/arm64
+        cache-from: type=gha
+        cache-to: type=gha,mode=max
+        
+    - name: Image digest
+      run: echo "Image pushed with digest ${{ steps.build-and-push.outputs.digest }}"