update pipeline for master branch

.drone.yml

@@ -1,36 +1,11 @@
-
 kind: pipeline
 type: docker
-name: 1
-platform:
-  os: linux
-  arch: amd64
-  
-workspace:
-  base: /opt/workspace
-  path: work
-  
-volumes:
-- name: m2
-  host:
-    path: /root/.m2
+name: default
 steps:
-
-- name: maven
-  image: maven:3-jdk-10
-  volumes:
-  - name: m2
-    path: /root/.m2
-  commands:
-  - mvn install
-- name: tomcat-deploy
-  image: tomcat
-  commands:
-  - cp target/webssh.war /usr/local/tomcat/webapps
-  - bash /usr/local/tomcat/bin/startup.sh
-    
-trigger:
-  branch:
-  - master
-  event:
-  - push
+	- name: ping
+	  image: redis
+	  commands:
+	  - redis-cli -h cache ping
+services:
+	- name: cache
+	  image: redis