Merge pull request 'cjl-dev' (#4) from cjl-dev into master

Reviewed-on: http://120.26.116.243:3000/root/alert-backend/pulls/4

.drone.yml

@@ -6,6 +6,9 @@ trigger:
   branch:
     include:
       - master
+  event:
+    include:
+      - push
 
 steps:
   - name: maven build
@@ -17,7 +20,7 @@ steps:
       - mvn clean package -Dmaven.test.skip=true
 
   - name: build docker image
-    image: appleboy/drone-docker
+    image: plugins/docker
     settings:
       repo: alert-backend
       tags: latest