feat: build docker image via github actions

.github/workflows/docker-image.yml

@@ -0,0 +1,58 @@
+name: Docker Image CI
+
+on:
+  push:
+    tags:
+      - "[0-9]+.[0-9]+.[0-9]+"
+  workflow_dispatch:
+    inputs:
+      tag:
+        description: "Version tag to use for the Docker image"
+        required: true
+
+jobs:
+  build-and-push:
+    runs-on: ubuntu-latest
+
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v6
+
+      - name: Log in to GitHub Packages
+        uses: docker/login-action@v4
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v4
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v4
+
+      - name: Lower case docker image name
+        id: docker_image
+        uses: ASzc/change-string-case-action@v8
+        with:
+          string: ${{ github.repository }}
+
+      - name: Build and push latest
+        uses: docker/build-push-action@v7
+        with:
+          context: .
+          push: true
+          platforms: linux/amd64,linux/arm64
+          tags: ghcr.io/${{ steps.docker_image.outputs.lowercase }}:latest
+
+      - name: Build and push version tag
+        uses: docker/build-push-action@v7
+        with:
+          context: .
+          push: true
+          platforms: linux/amd64,linux/arm64
+          tags: ghcr.io/${{ steps.docker_image.outputs.lowercase }}:${{ github.event_name == 'workflow_dispatch' && inputs.tag || github.ref_name }}