diff --git a/labs/docker-lan/README.md b/labs/docker-lan/README.md
index bc4d9a08..5f86a71d 100644
--- a/labs/docker-lan/README.md
+++ b/labs/docker-lan/README.md
@@ -1,4 +1,17 @@
-## 
+# gitea + drone + drone runner + registry 作为 git 服务器，自动测试、构建和打包镜像并发布到私有仓库
+
+
+## docker compose 配置网络后才能访问到宿主机 ip
+```
+networks:
+    default:
+        name: mynetwork
+        driver: bridge
+        ipam:
+            config:
+                - subnet: 172.172.0.0/24
+```
+
 ## 修改docker配置使用镜像和私有http仓库
 修改 /etc/docker/daemon.json 文件的 registry-mirrors 和 insecure-registries属性
 ```
diff --git a/labs/docker-lan/conf/drone/Dockerfile b/labs/docker-lan/conf/drone/Dockerfile
deleted file mode 100644
index c3c78df4..00000000
--- a/labs/docker-lan/conf/drone/Dockerfile
+++ /dev/null
@@ -1 +0,0 @@
-FROM alpine
\ No newline at end of file
diff --git a/labs/docker-lan/conf/drone/app.go b/labs/docker-lan/conf/drone/app.go
deleted file mode 100644
index ab12a00b..00000000
--- a/labs/docker-lan/conf/drone/app.go
+++ /dev/null
@@ -1,7 +0,0 @@
-package main
-
-import "fmt"
-
-func main(){  
-    fmt.Printf("Hello World!");
-}
\ No newline at end of file
diff --git a/labs/docker-lan/conf/drone/.drone.yml b/labs/docker-lan/conf/drone/example/.drone.yml
similarity index 73%
rename from labs/docker-lan/conf/drone/.drone.yml
rename to labs/docker-lan/conf/drone/example/.drone.yml
index 4581881e..dd74a8b4 100644
--- a/labs/docker-lan/conf/drone/.drone.yml
+++ b/labs/docker-lan/conf/drone/example/.drone.yml
@@ -1,18 +1,21 @@
 kind: pipeline
 name: default
 type: docker
-
 steps:
+  - name: test
+    image: golang:1.12
+    commands:
+      - go test
+      - ls
   - name: build
     image: golang:1.12
     commands:
       - go build
-      - go test
-
+      - ls
   - name: publish
     image: plugins/docker
     settings:
       registry: 172.20.32.1:5000
       repo: 172.20.32.1:5000/go/hello-world
       insecure: true
-      tags: [ 1, 1.1, latest ]
\ No newline at end of file
+      tags: [ 1, 1.2, latest ]
\ No newline at end of file
diff --git a/labs/docker-lan/conf/drone/example/Dockerfile b/labs/docker-lan/conf/drone/example/Dockerfile
new file mode 100644
index 00000000..890b64fb
--- /dev/null
+++ b/labs/docker-lan/conf/drone/example/Dockerfile
@@ -0,0 +1,3 @@
+FROM scratch
+ADD example /
+ENTRYPOINT ["/example"]
\ No newline at end of file
diff --git a/labs/docker-lan/conf/drone/example/README.md b/labs/docker-lan/conf/drone/example/README.md
new file mode 100644
index 00000000..fe1ef122
--- /dev/null
+++ b/labs/docker-lan/conf/drone/example/README.md
@@ -0,0 +1,2 @@
+# example
+
diff --git a/labs/docker-lan/conf/drone/example/app.go b/labs/docker-lan/conf/drone/example/app.go
new file mode 100644
index 00000000..b12f3b4a
--- /dev/null
+++ b/labs/docker-lan/conf/drone/example/app.go
@@ -0,0 +1,12 @@
+package main
+
+import "fmt"
+
+func main() {
+	fmt.Println(HelloWorld())
+}
+
+// HelloWorld is a function that returns a string containing "hello world".
+func HelloWorld() string {
+	return "hello world"
+}
\ No newline at end of file
diff --git a/labs/docker-lan/conf/drone/go.mod b/labs/docker-lan/conf/drone/example/go.mod
similarity index 100%
rename from labs/docker-lan/conf/drone/go.mod
rename to labs/docker-lan/conf/drone/example/go.mod
diff --git a/labs/docker-lan/conf/drone/example/main_test.go b/labs/docker-lan/conf/drone/example/main_test.go
new file mode 100644
index 00000000..e9b0e558
--- /dev/null
+++ b/labs/docker-lan/conf/drone/example/main_test.go
@@ -0,0 +1,16 @@
+package main
+
+import (
+	"os"
+	"testing"
+)
+
+func TestMain(m *testing.M) {
+	os.Exit(m.Run())
+}
+
+func TestHelloWorld(t *testing.T) {
+	if HelloWorld() != "hello world" {
+		t.Errorf("got %s expected %s", HelloWorld(), "hello world")
+	}
+}
\ No newline at end of file
diff --git a/labs/docker-lan/docker-compose.yml b/labs/docker-lan/docker-compose.yml
index 6ca01ba9..ff3b2281 100644
--- a/labs/docker-lan/docker-compose.yml
+++ b/labs/docker-lan/docker-compose.yml
@@ -53,8 +53,6 @@ services:
     gitea: # init with ip:port https://docs.gitea.io/en-us/install-with-docker
         image: gitea/gitea:1.14.2
         restart: always
-        networks:
-            - default
         environment:
             - USER_UID=1000
             - USER_GID=1000