Update Jenkins from a war file

Question

I have a machine with Ubuntu 12.04 and have installed Jenkins ver. 1.424.6 using apt-get based on this guide, but there is a new version:

New version of Jenkins (1.447.2) is available for download (changelog).

If I press download, I get a jenkins.war file... but how do I use that for upgrading my current installation? or is that not possible before the apt repositories gets updated?

Answer 1

We run jenkins from the .war file with the following command.

java -Xmx2500M -jar jenkins.war --httpPort=3333 --prefix=/jenkins

You can even run the command from the ~/Downloads directory

Answer 2

https://wiki.jenkins.io/display/JENKINS/Installing+Jenkins+on+Ubuntu

Once installed like this, you can update to the later version of Jenkins (when it comes out) by running the following commands:
-------
sudo apt-get update
sudo apt-get install jenkins
-------
(aptitude or apt-get doesn't make any difference.)
What does this package do?
Jenkins will be launched as a daemon up on start. See /etc/init.d/jenkins for more details.
The 'jenkins' user is created to run this service.
Log file will be placed in /var/log/jenkins/jenkins.log. Check this file if you are troubleshooting Jenkins.
/etc/default/jenkins will capture configuration parameters for the launch like e.g JENKINS_HOME
By default, Jenkins listen on port 8080. Access this port with your browser to start configuration.

Answer 3

I use this groovy script to download new war file

import java.util.concurrent.atomic.AtomicInteger

class ThreadHelper{
    static done = false;
    static starttime = System.currentTimeMillis()
    static synchronized printx (message) {    printf ("%5s seconds: %20s",(System.currentTimeMillis()-starttime)/1000.0 , message); println("") }
    def download(address)
    {
    def filename = new File(System.getenv()['CI_HOME'] + '/' + address.tokenize("/")[-1])
    println(filename.getCanonicalPath())
    def file = new FileOutputStream(filename)
    def out = new BufferedOutputStream(file)
    out << new URL(address).openStream()
    out.close()
    done=true;
    }

}

println("executing from ... "+ new File(".").getCanonicalPath())

def counter = new AtomicInteger();
    th = Thread.start {
    while(!ThreadHelper.done) {
    sleep 1000
    counter.incrementAndGet()
    print '.'
    }
}

th2 = Thread.start { new ThreadHelper().download("http://mirrors.jenkins-ci.org/war/latest/jenkins.war") }
th.join()
th2.join()

ThreadHelper.printx('done')

And another script shutsdown tomcat - copies the war and restarts it

We host it on windows 2008 and tomcat, I use sc query, sc config, sc stop, sc start to manage windows services

    set warname=jenkins

if '%name%' == 'trak' set warname=trak

pushd .
if '%name%'=='' goto badname
if '%warname%'=='' goto badname

if '%ci_home%'=='' goto badcihome

REM =====================================================
REM stop windows service
sc stop %name%

REM sleep for 5 seconds see http:\\stackoverflow.com\questions\1672338\how-to-sleep-for-5-seconds-in-windowss-command-prompt-or-dos
ping 1.1.1.1 -n 1 -w 3000 > nul

rem replace forward slash with backward slash
set tomcat_dir=%ci_home:/=\%\instances\tomcat7-%name%

REM Create sub directory called bak-yymmdd-hhmmss
REM where yymmdd-hhmmss is a date-time stamp like 120601-142907

set hh=%time:~0,2%

REM Since there is no leading zero for times before 10 am, have to put in
REM a zero when this is run before 10 am.

if "%time:~0,1%"==" " set hh=0%hh:~1,1%

set yymmdd_hhmmss=%date:~12,2%%date:~4,2%%date:~7,2%-%hh%%time:~3,2%%time:~6,2%

set backupdir=bak-%yymmdd_hhmmss%

REM =====================================================
md %tomcat_dir%\logs\%backupdir%

cd %tomcat_dir%\logs

dir bak*
echo "nothing-to-log" >> force.log

REM move command will fail if there is nothing to move hence the force log statement above

call move *.* %backupdir%

REM =====================================================
rmdir %tomcat_dir%\webapps\%name% /q/s

echo f|xcopy %ci_home%\%warname%.war %tomcat_dir%\webapps\%name%.war /y

REM TODO===== something about jenkins plugins

REM =====================================================
cd "%tomcat_dir%\bin"
call catalina version

echo =====================================================
echo ====== removing %name%
call service remove %name%

echo =====================================================
echo ====== installing %name%
call service install %name%

echo on

REM setting service to start automatically, note that space before the word auto IS REQUIRED
sc config %name% start= auto

REM =====================================================
sc start %name%

popd

exit 0

goto done

:badname
echo 'name required - this will be used as windows service name as well'
pause
exit 1

:badcihome
echo 'CI home env var required - ci_home'
pause
exit 1

:done

Answer 4

If you have installed Jenkins via apt-get, you should also update Jenkins via apt-get to avoid future problems. Updating should work via "apt-get update" and then "apt-get upgrade".

For details visit the following URL:

https://wiki.jenkins-ci.org/display/JENKINS/Installing+Jenkins+on+Ubuntu

Answer 5

when you open the Jenkins panel it will show available package from their latest version. you can download it via wget command in the server.after download the latest package you should take .war backup file.

Eg-: wget http://updates.jenkins-ci.org/download/war/2.205/jenkins.war

Jenkins war file path for Ubuntu - /usr/share/jenkins/

Jenkins war file path for centos - /usr/lib/jenkins/

after taking backup overwrite the war file and restart the jenkins service.

Ubuntu - service jenkins restart centos - systemctl restart jenkins.service

Answer 6

Mine is installed under /usr/share/jenkins I thought it was installed via apt-get so might want to check there as well.

Ubuntu 12.04.1