GitHub action for build Docker image added

.github/workflows/docker.yml

@@ -0,0 +1,27 @@
+name: docker
+
+on:
+  create:
+    branches: [main]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout ${{ github.event.repository.name }}
+        uses: actions/checkout@v3
+      - name: Login to Docker Hub
+        uses: docker/login-action@v2
+        with:
+          username: ${{ secrets.DOCKER_HUB_USERNAME }}
+          password: ${{ secrets.DOCKER_HUB_ACCESS_TOKEN }}
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+      - name: Build and push ${{ github.ref_name }}
+        uses: docker/build-push-action@v3
+        with:
+          platforms: linux/amd64,linux/arm64
+          push: true
+          tags: ${{ secrets.DOCKER_HUB_USERNAME }}/portctl:latest,${{ secrets.DOCKER_HUB_USERNAME }}/portctl:${{ github.ref_name }}

Dockerfile

@@ -0,0 +1,7 @@
+FROM thevlang/vlang:alpine AS builder
+COPY . /home/portctl
+RUN cd /home/portctl && v -prod -skip-unused .
+
+FROM alpine:latest
+COPY --from=builder /home/portctl/portctl /usr/local/bin
+CMD ["portctl"]