update jenkins

jenkins/README.md

@@ -7,4 +7,30 @@ In a nutshell, [Jenkins][1] is the leading open source automation server. Built
 with Java, it provides hundreds of plugins to support building, testing,
 deploying and automation for virtually any project.
 
+## docker-compose.yml
+
+```yml
+jenkins:
+  image: jenkins:alpine
+  ports:
+    - "8080:8080"
+    - "50000:50000"
+  volumes:
+    - ./data:/var/jenkins_home
+  environment:
+    - JAVA_OPTS=-Dhudson.footerURL=http://easypi.info/
+  restart: always
+```
+
+## up and running
+
+```
+$ cd ~/fig/jenkins
+$ mkdir -p data
+$ sudo chown 1000 data
+$ docker-compose up -d
+$ docker-compose exec jenkins cat /var/jenkins_home/secrets/initialAdminPassword
+$ firefox http://localhost:8080/
+```
+
 [1]: http://jenkins-ci.org/

jenkins/docker-compose.yml

@@ -1,5 +1,10 @@
 jenkins:
-  image: vimagick/jenkins
+  image: jenkins:alpine
   ports:
     - "8080:8080"
+    - "50000:50000"
+  volumes:
+    - ./data:/var/jenkins_home
+  environment:
+    - JAVA_OPTS=-Dhudson.footerURL=http://easypi.info/
   restart: always