Jenkins is a free and open source automation server. Jenkins helps to automate the non-human part of the software development process, with continuous integration and facilitating technical aspects of continuous delivery.
Let’s begin with installation of jenkins on Linux based server.
- Login to server and install the java or update the java if it’s already exists. As Jenkins runs on Java.
[opc@bastion filesys]$ sudo yum -y install java
Loaded plugins: langpacks, priorities, ulninfo, versionlock
9 packages excluded due to repository priority protections
Excluding 2 updates due to versionlock (use "yum versionlock status" to show them)
Package 2000:jdk1.8-1.8.0_231-fcs.x86_64 already installed and latest version
Nothing to do
- After Java installation, we must have the Jenkins YUM repository available.
[opc@bastion filesys]$ sudo wget -O /etc/yum.repos.d/jenkins.repo http://pkg.jenkins-ci.org/redhat/jenkins.repo Resolving pkg.jenkins-ci.org (pkg.jenkins-ci.org)... 52.202.51.185 Connecting to pkg.jenkins-ci.org (pkg.jenkins-ci.org)|52.202.51.185|:80... connected. HTTP request sent, awaiting response... 200 OK Length: 71 Saving to: ‘/etc/yum.repos.d/jenkins.repo’ 100%[===================================================>] 71 --.-K/s in 0s 2020-02-19 13:27:26 (7.84 MB/s) - ‘/etc/yum.repos.d/jenkins.repo’ saved [71/71] [opc@bastion filesys]$ sudo rpm --import https://jenkins-ci.org/redhat/jenkins-ci.org.key [opc@bastion filesys]$ sudo yum -y install jenkins Loaded plugins: langpacks, priorities, ulninfo, versionlock jenkins | 2.9 kB 00:00:00 jenkins/primary_db | 139 kB 00:00:00 9 packages excluded due to repository priority protections Excluding 2 updates due to versionlock (use "yum versionlock status" to show them) Resolving Dependencies --> Running transaction check ---> Package jenkins.noarch 0:2.220-1.1 will be installed --> Finished Dependency Resolution Dependencies Resolved ============================================================================================= Package Arch Version Repository Size ============================================================================================= Installing: jenkins noarch 2.220-1.1 jenkins 63 M Transaction Summary ============================================================================================= Install 1 Package Total download size: 63 M Installed size: 63 M Downloading packages: jenkins-2.220-1.1.noarch.rpm | 63 MB 00:00:02 Running transaction check Running transaction test Transaction test succeeded Running transaction Installing : jenkins-2.220-1.1.noarch 1/1 Verifying : jenkins-2.220-1.1.noarch 1/1 Installed: jenkins.noarch 0:2.220-1.1
- Add the HTTP port number and Restart the Jenkins. In my case, I am using port 31308.
[opc@bastion filesys]$ sudo vi /etc/default/jenkins [opc@bastion filesys]$ sudo cat /etc/default/jenkins HTTP_PORT="31808" JENKINS_ARGS="--httpPort=31808" [opc@jenkinsserver filesys]$ sudo service jenkins restart Restarting jenkins (via systemctl): [ OK ] [opc@jenkinsserver filesys]$
- Now, add Jenkins to allow traffic from firewall.
[opc@bastion filesys]$ sudo firewall-cmd --permanent --zone=public --add-service=jenkins success [opc@jenkinsserver filesys]$ sudo firewall-cmd --reload success [opc@bastion filesys]$
- To obtain the administrator password, will use in next step.
[opc@bastion filesys]$ sudo cat /var/lib/jenkins/secrets/initialAdminPassword
870f5bf9ecc6419cb05355e7fe22848f
[opc@bastion filesys]$
- Go to browser, using public IP with assigned port number, open the URL.
http://bastion.vms.sass.ro:31308/
- After providing the password, click Continue.
- Now Click on Install suggested Plugins
- After the completion, you can create your admin user for all upcoming activities in Jenkins and Press on “Save and Continue” Button.
- In instance configuration, copy the Jenkins URL and click on “Save and Finish“.
- In last wizard, Click on “Start using Jenkins”.
Here the Jenkins installation is completed. In the next post, we can install OCI plugin for Oracle Cloud.
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