#Jenkins install openjdk 11 how to
#Jenkins install openjdk 11 update
#Jenkins install openjdk 11 password

Thanks for reading, if you like my content, check out my website, read my newsletter or follow me at on Twitter. In the next post, I will change port 8080 to only listen on 127.0.0.1 and setup a caddy reverse proxy to provide SSL with LetsEncrypt. If we click on the green icon, it will take us directly to the 'Console Output' where our build execution output will be shown: Next on Jenkins Select 'Save' and you should see the following:Ĭlick on 'Build Now' on the left at the bottom will show your build history, and we can see one build succeeded as it's green in color: You can run any shell command, as can seen below:Īnd we will execute the shell script: IP='$(curl -s )' Under 'Build' select 'Add build step' and select 'Execute shell': Then create your first job, you can call it whatever you want and select 'Freestyle Project': Then you should see this screen: Create a Freestyle JobĪfter selecting 'Start using Jenkins' you should see this: Now you can access jenkins on ' For now I will just be installing the suggested plugins:Ĭonfigure the Jenkins URL (this is just for demonstration purposes, so I will keep it as its defaults, but I recommend you setup SSL):

#Jenkins install openjdk 11 password

We can get the initial admin password using: $ sudo cat /var/lib/jenkins/secrets/initialAdminPasswordīefore we access jenkins, we need to allow port 8080 on our firewall (I'm a die-hard iptables fan, so I won't be using ufw): $ sudo iptables -I INPUT -p tcp -dport 8080 -j ACCEPT We can also check if jenkins will start on boot: $ sudo systemctl is-enabled jenkins

May 16 19:38:43 jenkins systemd: Started Jenkins Continuous Integration Server. May 16 19:38:14 jenkins jenkins: This may also be found at: /var/lib/jenkins/secrets/initialAdminPassword └─1536 /usr/bin/java =true -jar /usr/share/java/jenkins.war -webroot=/var/cache/jenkins/war -httpPort=8080 Loaded: loaded (/lib/systemd/system/rvice enabled vendor preset: enabled)Īctive: active (running) since Mon 19:38:43 UTC 1min 49s ago rvice - Jenkins Continuous Integration Server We can verify if Jenkins is running by using systemd: $ sudo systemctl status jenkins Then install jenkins: $ sudo apt install jenkins -y

#Jenkins install openjdk 11 update

Now update the indexes to make jenkins available to install: $ sudo apt update $ echo deb binary/ | sudo tee /etc/apt//jenkins.list > /dev/null Jenkins Installationįirst get the Jenkins sources: $ curl -fsSL | sudo tee /usr/share/keyrings/jenkins-keyring.asc > /dev/null

Now that our JDK has been installed, we can install Jenkins and I am using the Jenkins documentation to install Jenkins on Linux. Then verify if the installation succeeded by running: java -versionĪnd in my case the output shows: openjdk version '11.0.15' Jenkins requires Java to run and therefore we need to install the Java Runtime Environment and on this time of writing, jenkins supports OpenJDK JDK / JRE 11 - 64 bits. Jenkins is an open source automation server which enables developers around the world to reliably build, test, and deploy their software.

#Jenkins install openjdk 11 how to

Deploy the Jenkins.war into the tomcat server and start the server.In this tutorial I will demonstrate how to install Jenkins on Linux (Ubuntu 22.04 LTS) and how to create a freestyle job.Jenkins provides a good feature to configure multiple JVMs in order to overcome the above mentioned inverse java version issue.īelow are the steps to be followed in order to configure the JDK in Jenkins : Because, the application developed under JDK 5 can run easily with JDK 6 but the inverse of this may always have a high chance of failure. performance issues.Īs a best practice, it is always advisable to build the applications using the java version which is close to the version used in the production environment. Consider, in the production system the application might be running on JDK 5 and in some QA platform higher version of the JDK may be required in order to perform some specific tests e.g. However there may be scenarios where there is a need to configure more than one version of the JDK. This is which the Jenkins itself running under. Since Jenkins is commonly used for building and deploying the java applications, it offers excellent features for the same.Īs a default one, Jenkins will use the java version which it find from the system path. In this chapter will learn about configuring the JDK in Jenkins. In the previous chapter, we learnt how to configure the Jenkins and start the server and see its GUI for other basic configurations.