diff --git a/.dockerignore b/.dockerignore
index 93449cc..4e2c7a9 100644
--- a/.dockerignore
+++ b/.dockerignore
@@ -1,59 +1,12 @@
-# Build artifacts and dependencies
-target/
-.mvn/
-*.iml
-*.ipr
-*.iws
-
-# IDE files
-.idea/
-.vscode/
-*.sublime-*
-.eclipse
-.project
-.classpath
-.settings/
-
-# OS files
-.DS_Store
-Thumbs.db
-
-# Version control
-.git/
+.git
 .gitignore
-.gitattributes
-
-# Documentation and scripts (comment out if needed in container)
-README.md
-*.md
-deploy.sh
-rollback.sh
-fetch-log.sh
-
-# Docker files (avoid recursion)
-docker/
-Dockerfile*
-docker-compose*
-
-# Logs and temp files
+**/target/
+**/.buildx-cache/
+.buildx-cache/
+**/log/
 log/
-logs/
-*.log
-*.tmp
-
-# Backup files
-backup/
-*.backup
-*.bak
-
-# Environment files
-.env
-.env.*
-
-# Test files
-**/src/test/
-
-# Maven wrapper (we install Maven in container)
-.mvn/
-mvnw
-mvnw.cmd
\ No newline at end of file
+**/.DS_Store
+.DS_Store
+.vscode/
+**/.idea/
+**/.serena/
diff --git a/.gitea/workflows/backend-docker.yml b/.gitea/workflows/backend-docker.yml
new file mode 100644
index 0000000..ad7270d
--- /dev/null
+++ b/.gitea/workflows/backend-docker.yml
@@ -0,0 +1,40 @@
+name: Build and Push Backend
+
+on:
+  push:
+    branches: [ master, main ]
+    paths:
+      - 'docker/**'
+      - 'play-admin/**'
+      - 'play-common/**'
+      - 'play-generator/**'
+      - 'pom.xml'
+  workflow_dispatch: {}
+
+jobs:
+  docker:
+    runs-on: docker
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Ensure buildx is available
+        shell: bash
+        run: |
+          docker buildx version || true
+          docker buildx create --use || true
+
+      - name: Build and push to local registry
+        env:
+          REGISTRY: 127.0.0.1:5000
+          TAG: ${{ github.sha }}
+        shell: bash
+        run: |
+          docker buildx build \
+            --platform linux/amd64 \
+            -f docker/Dockerfile \
+            -t ${REGISTRY}/peipei/backend:${TAG} \
+            -t ${REGISTRY}/peipei/backend:latest \
+            --push \
+            .
+