Jenkins-install

For linux

sudo wget -O /etc/yum.repos.d/jenkins.repo http://pkg.jenkins-ci.org/redhat/jenkins.repo
sudo rpm --import http://pkg.jenkins-ci.org/redhat/jenkins-ci.org.key

yum search jenkins
sudo yum install jenkins

yum install java-1.7.0-openjdk

sudo service jenkins start/stop/restart
sudo chkconfig jenkins on

Jenkins info

Jenkins will be launched as a daemon on startup. See /etc/init.d/jenkins for more details.
The ‘jenkins’ user is created to run this service. If you change this to a different user via the config file, you must change the owner of /var/log/jenkins, /var/lib/jenkins, and /var/cache/jenkins.
Log file will be placed in /var/log/jenkins/jenkins.log. Check this file if you are troubleshooting Jenkins.
/etc/sysconfig/jenkins will capture configuration parameters for the launch.
By default, Jenkins listen on port 8080. Access this port with your browser to start configuration. Note that the built-in firewall may have to be opened to access this port from other computers. (See http://www.cyberciti.biz/faq/disable-linux-firewall-under-centos-rhel-fedora/ for instructions how to disable the firewall permanently)

A Jenkins RPM repository is added in /etc/yum.repos.d/jenkins.repo

vim /etc/sysconfig/jenkins 

    JENKINS_PORT="8080"
    JENKINS_USER="jenkins"

sudo service jenkins start
sudo chkconfig jenkins on

# lsof -i :8080|wc -l
3

Jenkins WebUI

1	/etc/init.d/iptables stop

第一次访问需要输入初始密码,而密码被写入到日志文件中，日志在/var/log/jenkins/jenkins.log中，如下部分截取，包括初始密码。WebUI访问链接为：http://YOURHOST:8080

$ cat /var/log/jenkins/jenkins.log 
 Jenkins initial setup is required. An admin user has been created and a password generated.
Please use the following password to proceed to installation:

e34406819211493d9b415b085097ef77

This may also be found at: /var/lib/jenkins/secrets/initialAdminPassword

接下来进入Customize Jenkins页面，选择安装模式，使用Install suggested plugins安装,接下来Getting Started页面会自动安装很多常用插件到Jenkins服务器上；jenkins插件的默认安装位置为/var/lib/jenkins/plugins/;通过命令tail -f /var/log/jenkins/jenkins.log了解plugin安装进度。Create First Admin User页面创建你的第一个用户，至此Jenkins安装完成。

Disable the firewall

如果Centso6.x访问页面失败需要关闭防火墙或者设置防火墙规则,也有可能是8080端口没有启动，可通过lsof -i :8080在后台判断，也可以通过crul YOURHOST:8080访问看是否是服务没有正常启动。

1	/etc/init.d/iptables stop

From Centos 7.x

firewall-cmd --zone=public --add-port=8080/tcp --permanent
firewall-cmd --zone=public --add-service=http --permanent
firewall-cmd --reload

firewall-cmd --list-all

Linux | ps

1
2

[root@docker-machine jenkins]# ps -ef|grep jenkins
jenkins    6693      1  2 08:01 ?        00:00:39 /etc/alternatives/java -Dcom.sun.akuma.Daemon=daemonized -Djava.awt.headless=true -DJENKINS_HOME=/var/lib/jenkins -jar /usr/lib/jenkins/jenkins.war --logfile=/var/log/jenkins/jenkins.log --webroot=/var/cache/jenkins/war --daemon --httpPort=8080 --debug=5 --handlerCountMax=100 --handlerCountMaxIdle=20

通过命令我们其实可以知道，Jenkins.war路径，log,webroot,运行用户等路径,比如web应用发布路径为/var/cache/jenkins/。通过查询路径的权限信息了解，运行于那个用户下。

1 2	[root@docker-machine jenkins]# ls -ld /var/log/jenkins/ drwxr-x---. 2 jenkins jenkins 4096 5月 29 08:01 /var/log/jenkins/

Jenkins blueocean-plugin

https://github.com/jenkinsci/blueocean-plugin

Install Jenkins with Docker

https://wiki.jenkins-ci.org/display/JENKINS/Installing+Jenkins+with+Docker

参考：https://jenkins.io//blog/2016/05/26/introducing-blue-ocean/
https://wiki.jenkins-ci.org/display/JENKINS/Installing+Jenkins+on+Red+Hat+distributions
https://github.com/jenkinsci/blueocean-plugin
http://ftp.yz.yamagata-u.ac.jp/pub/misc/jenkins/war/1.658/‘

WHOAMI

jenkins-install