Jenkins use experience to talk about one (step by step to build Jenkins environment)

Jenkins experience to talk about 1 (step by step to build a Jenkins environment)
In the company has been using Jenkins software for some time, took a lot of detours, but also accumulated some experience, can share with you.

Let's build a Jenkins environment together. First choice you need to install good jre/jdk and Tomcat. Since this is not the focus of this article, the installation process is skipped.

The server operating system I experimented with was a 64-bit version of CentOS 5.4, with a JDK version of 64-bit 1.6.0 installed with a tomcat version of 7.0.14.
Digression, in order to solve the possible outofmemoryerror:permgen space problem, need to modify the $tomcat_home/bin/catalina.sh file, add a sentence
Java_opts= "-xms512m-xmx768m-xx:maxnewsize=256m-xx:maxpermsize=128m"

Download the latest version of the war package at the Jenkins Official website (http://jenkins-ci.org/). Copy to the $TOMCAT _home/webapps (no decompression), delete the other directory under WebApps (of course, you can not start Jenkins without TOMCAT, because he has embedded jetty).
Now we create a directory that holds all the Jenkins data, such as/jenkins. Add environment variable Jenkins_home to/etc/profile to point to this path.
Export Jenkins_home=/jenkins

Now we can start the $TOMCAT _home/bin/startup.sh to start the Jenkins, but so every time it starts too much trouble, we make it into a service to start.
Create a Jenkins file under/etc/init.d/

Vi/etc/init.d/jenkins

The

content is as follows, if you want to start with a specified user, modify the Jenkins_user=root value, but remember to change the/jenkins and the Tomcat Directory access permissions. Other environment variables such as Java_home and Tomcat_home are modified according to your actual JDK and TOMCAT installation directory.

#!/bin/sh # Startup script for the Jenkins Continuous Integration Server # (via Jakarta Tomcat Java servlets and JSP ser ver) # chkconfig:-Description:jakarta Tomcat Java servlets and JSP server # processname:tomcat # pidfile:/V Ar/run/tomcat.pid #!/bin/sh # Startup script for the Jenkins Continuous Integration Server # (via Jakarta Tomcat Java S Ervlets and JSP server) # Chkconfig:-Description:jakarta Tomcat Java servlets and JSP server # Processname:t
Omcat # Pidfile:/var/run/tomcat.pid # Set Tomcat environment. Jenkins_user=root lockfile=/var/lock/jenkins export path=/usr/local/bin: $PATH export Home=/jenkins export JAVA_HOME=/ USR/LOCAL/JDK1.6.0_25 Export Jenkins_basedir=/jenkins export tomcat_home=/usr/local/tomcat-7.0.14 export CATALINA_ pid= $JENKINS _basedir/jenkins-tomcat.pid Export catalina_opts= "-djenkins_home= $JENKINS _basedir/jenkins-home- Xmx512m-djava.awt.headless=true "[f $TOMCAT _home/bin/catalina.sh] | | Exit 0 Export path= $PATH:/usr/bin:/usr/local/bin # How we were called.
        Case "in Start" # Start daemon. Echo-n "Starting Tomcat:" Su-p-s/bin/sh $JENKINS _user-c "$TOMCAT _home/bin/catalina.sh start" retval=
        $?
  echo [$RETVAL = 0] && touch $LOCKFILE;;
        Stop) # Stop daemons. Echo-n "shutting down Tomcat:" Su-p-s/bin/sh $JENKINS _user-c "$TOMCAT _home/bin/catalina.sh Stop" RET
        Val=$?
  echo [$RETVAL = 0] && rm-f $LOCKFILE;;
  Restart) $ stop $ start;;
  Condrestart) [e $LOCKFILE] && $ restart;;
  status) status Tomcat;; *) echo "Usage: $ {Start|stop|restart|status}" Exit 1 Esac Exit 0

Install the following command to start the Jenkins Service (start and stop Jenkins also use the service command).
chmod a+x/etc/init.d/jenkins
Chkconfig Jenkins on
Service Jenkins Start

Now access to this server http://172.16.12.80:8080/jenkins/can see that Jenkins has been started.

We are going to install a Nginx on this server to do the reverse proxy, for convenience, I choose to use the RPM package installation method:

$ wget http://nginx.org/packages/rhel/5/x86_64/RPMS/nginx-1.0.9-1.el5.ngx.x86_64.rpm
$ RPM-IVH nginx-1.0.9-1.el5.ngx.x86_64.rpm

Create a new profile/etc/nginx/conf.d/jenkins.conf the contents are as follows (the two lines that are commented out are print logs and are not normally opened):

server {
    listen       ;
    server_name  ci.abc.com;
    #access_log/var/log/jenkins_access_log main;
    #error_log  /var/log/jenkins_error_log  debug_http;
    Client_max_body_size 60M;
    Client_body_buffer_size 512k;
    Location/{
        proxy_pass      http://localhost:8080;
        Proxy_redirect off  ;
        Proxy_set_header Host $host;
        Proxy_set_header x-real-ip $remote _addr;
        Proxy_set_header x-forwarded-for $proxy _add_x_forwarded_for
    }
}

Now start Nginx.

Service Nginx Start

Let's modify the local Hosts file (C:\Windows\System32\drivers\etc\hosts) to add:

172.16.12.80 ci.abc.com

This time we enter http://ci.abc.com/jenkins in the browser to see the page.