add github action

.github/workflows/docker-build.yml

@@ -0,0 +1,44 @@
+name: Build and Publish Docker Image
+
+on:
+  push:
+    branches:
+      - main
+      - test-docker-build
+  workflow_dispatch:  # Allow manual triggering
+
+jobs:
+  build-and-push:
+    name: Build and Push Docker Image
+    runs-on: ubuntu-latest
+    
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+        
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
+        with:
+          platforms: 'arm64,amd64'
+          
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+        
+      - name: Login to Docker Hub
+        uses: docker/login-action@v2
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+          
+      - name: Build and push
+        uses: docker/build-push-action@v4
+        with:
+          context: .
+          file: .container/Dockerfile
+          platforms: linux/amd64,linux/arm64
+          push: true
+          tags: |
+            mugglejinx/owl:latest
+            mugglejinx/owl:${{ github.sha }}
+          cache-from: type=registry,ref=mugglejinx/owl:buildcache
+          cache-to: type=registry,ref=mugglejinx/owl:buildcache,mode=max