Initial build action test

.gitea/workflows/docker.yml

@@ -0,0 +1,19 @@
+name: Build and Push Docker Image
+
+on:
+  push:
+    branches: [ main ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Login to Registry
+        uses: docker/login-action@v2
+        with:
+          registry: registry.example.com
+          username: ${{ secrets.REGISTRY_USER }}
+          password: ${{ secrets.REGISTRY_PASSWORD }}