add docker build

.github/workflows/go.yml

@@ -15,6 +15,9 @@ jobs:
 
   build:
     runs-on: ubuntu-latest
+    permissions:
+      packages: write
+      contents: read
     steps:
     - uses: actions/checkout@v4
 
@@ -45,4 +48,25 @@ jobs:
         files: |
           shellyctl_linux_amd64
           shellyctl_linux_arm64
-          shellyctl_windows_arm64
+          shellyctl_windows_arm64
+
+    - name: Build image
+      run: docker build . --file Dockerfile --tag $IMAGE_NAME --label "runnumber=${GITHUB_RUN_ID}"
+    - name: Log in to registry
+      run: echo "${{ secrets.GITHUB_TOKEN }}" | docker login ghcr.io -u $ --password-stdin
+
+    - name: Push image
+        run: |
+          IMAGE_ID=ghcr.io/${{ github.repository_owner }}/$IMAGE_NAME
+
+          IMAGE_ID=$(echo $IMAGE_ID | tr '[A-Z]' '[a-z]')
+
+          VERSION=$(echo "${{ github.ref }}" | sed -e 's,.*/\(.*\),\1,')
+
+          [[ "${{ github.ref }}" == "refs/tags/"* ]] && VERSION=$(echo $VERSION | sed -e 's/^v//')
+
+          [ "$VERSION" == "main" ] && VERSION=latest
+          echo IMAGE_ID=$IMAGE_ID
+          echo VERSION=$VERSION
+          docker tag $IMAGE_NAME $IMAGE_ID:$VERSION
+          docker push $IMAGE_ID:$VERSION

ci/Dockerfile

@@ -0,0 +1,5 @@
+FROM scratch
+
+COPY  ./shellyctl_linux_amd64 /bin/shellyctl_linux_amd64
+
+ENTRYPOINT [ "/bin/shellyctl_linux_amd64" ]