From 6f0d4570d87587a971185d3c64424a6f3f3387a4 Mon Sep 17 00:00:00 2001
From: John <me@hakr.xyz>
Date: Fri, 9 Jan 2026 13:04:24 +0800
Subject: [PATCH] ci: add automated Docker image build and publish workflow

---
 .github/workflows/docker.yml | 58 ++++++++++++++++++++++++++++++++++++
 1 file changed, 58 insertions(+)
 create mode 100644 .github/workflows/docker.yml

diff --git a/.github/workflows/docker.yml b/.github/workflows/docker.yml
new file mode 100644
index 00000000..99784862
--- /dev/null
+++ b/.github/workflows/docker.yml
@@ -0,0 +1,58 @@
+name: Build and Push Docker Image
+
+on:
+  push:
+    tags:
+      - 'v*.*.*'
+      - 'v*'
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository_owner }}/nanokvm-usb
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Log into registry
+        if: github.event_name != 'pull_request'
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract Docker metadata
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+          tags: |
+            type=ref,event=branch
+            type=sha,format=long
+            type=semver,pattern={{version}}
+            type=semver,pattern={{version}},format=latest
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          push: ${{ github.event_name != 'pull_request' }}
+          platforms: linux/amd64,linux/arm64
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max