diff --git a/.gitea/workflows/demo.yaml b/.gitea/workflows/demo.yaml
index c537cc6..80b19a3 100644
--- a/.gitea/workflows/demo.yaml
+++ b/.gitea/workflows/demo.yaml
@@ -17,3 +17,24 @@ jobs:
         run: |
           ls ${{ gitea.workspace }}
       - run: echo "🍏 This job's status is ${{ job.status }}."
+
+  publish:
+    runs-on: ubuntu-latest
+    needs: build
+    if: gitea.ref == 'refs/heads/main'
+    steps:
+      - uses: https://github.com/actions/checkout@v4
+      - name: Set up Docker Buildx
+        uses: https://github.com/docker/setup-buildx-action@v3
+        with:
+          config-inline: |
+            [registry."<my-private-unsecure-git-repository-ip-address>:5000"]
+              http = true
+              insecure = true            
+      - name: Build and push Docker image
+        uses: https://github.com/docker/build-push-action@v5
+        with:
+          context: .
+          file: ./Dockerfile
+          push: true
+          tags: "<my-private-unsecure-git-repository-ip-address>:5000/<my-docker-image>:${{gitea.sha}},<my-private-unsecure-git-repository-ip-address>:5000/<my-docker-image>:latest"
diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..2e7292c
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,3 @@
+FROM archlinux:latest
+
+