Linux installation steps for Jenkins and various problem solving (page access initialization password)

1. Prepare the Java environment, jdk1.8

Check whether Java is installed. If not, install the Java environment first: java -version

2. Install Jenkins

Official website: https://wiki.jenkins-ci.org/display/JENKINS/Installing+Jenkins+on+Red+Hat+distributions#InstallingJenkinson

(1) Install the stable version

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

(2) Install the latest version

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

(3) Select a version and wait for the installation to complete

3. Configure Jenkins

Description: Default installation directory

(1) /usr/lib/jenkins/: Jenkins installation directory, where the WAR package will be placed.
(2) /etc/sysconfig/jenkins: Jenkins configuration file. "Port", "JENKINS_HOME", etc. can be configured here.
(3) /var/lib/jenkins/: The default JENKINS_HOME.
(4) /var/log/jenkins/jenkins.log: Jenkins log file.

(1) Modify the default port number

Edit the file: vim /etc/sysconfig/jenkins

Find JENKINS_PORT and change the default port number (8080). I changed it to 8081.

(2) Modify the JDK configuration

Edit the file: vim /etc/init.d/jenkins

Find candidates and add your own jdk java path in the first line

Note: Linux view jdk installation path command - which java

(3) Modify the firewall configuration: Choose one of the following methods to execute

(1) Open port 8081 and restart the firewall:
Open port 8081: firewall-cmd --zone=public --add-port=8081/tcp --permanent
Restart the firewall: firewall-cmd --reload

(2) Turn off the firewall: systemctl stop firewalld

4.Jenkins start/restart/stop commands

Linux command line:

(1) Start: service jenkins start
(2) Restart: service jenkins restart
(3) Stop: service jenkins stop

Enter Jenkins through the browser

(1) Log in: http://your own IP:8081/
(2) Close: http://your own IP:8081/exit
(3) Restart: http://your own IP:8081/restart
(4) Reload: http://your own IP:8081/reload

5. Log in to Jenkins via browser

(1) Unlock Jenkins:

Enter the command: cat /var/lib/jenkins/secrets/initialAdminPassword

Copy the administrator password into the input box: 92aa3b378394496fb9cd7f0c300

6. Install plugins according to your needs

Summarize

The above is the steps for installing Jenkins on Linux and various problem solving (page access initialization password) introduced by the editor. I hope it will be helpful to everyone. If you have any questions, please leave me a message and the editor will reply to you in time. I would also like to thank everyone for their support of the 123WORDPRESS.COM website!
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