I. Overview

Jenkins is an open source software project. It is a continuous integration tool based on Java developed to monitor continuous repetitive work. It aims to provide an open and easy-to-use software platform that makes continuous software integration possible.

Installation Environment

Operating system: centos 7.6

Two, install openJDK

Install epel first

yum install -y vim wget epel-release

Then install jdk1.8

yum install java-1.8.0-openjdk

View version

# java -version

openjdk version "1.8.0_102"OpenJDK Runtime Environment (build 1.8.0_102-b14)
OpenJDK 64-Bit Server VM (build 25.102-b14, mixed mode)

Two, install jenkins

Install the LTS version of jenkins

Pull the configuration of the library to the local corresponding file

sudo wget -O /etc/yum.repos.d/jenkins.repo http://pkg.jenkins-ci.org/redhat-stable/jenkins.repo

Import public key

sudo rpm --import https://jenkins-ci.org/redhat/jenkins-ci.org.key

Install jenkins

yum -y install jenkins

Familiar with jenkins configuration

1. System configuration file

cat /etc/sysconfig/jenkins | more

Several important configuration item information can be obtained

JENKINS_HOME="/var/lib/jenkins", store jenkins configuration and working files
JENKINS_PORT="8080", JENKINS default port 8080

2. Configuration folder

This location is important

ls /var/lib/jenkins

There are several folders and files such as jobs, logs, and plugins. Do not delete randomly
This time I mainly looked at the plugins folder, all plugins are in it, such as the plugin ssh-slaves, there will be a ssh-slaves folder and ssh-slaves.jpi.
When a plug-in is not installed successfully, there will be a file ending with .tmp

3. Log

Two positions related to logs:

There are logs in /var/lib/jenkins/logs, but it seems that there is nothing recorded for the time being. I will follow up later.
/var/log/jenkins/jenkins.log, logs plug-in installation and other logs, the reason for the failure information is very clear, important

start up

Start service

service jenkins start

Four, configuration

Browser access

IP address:8080

Get the administrator password

Follow the prompts, go to /var/lib/jenkins/secrets/initialAdminPassword, copy and paste in, continue

Choose installation method

Recommended by default, the one on the left. The second custom plug-in, if you know what plug-ins are needed, what are the plug-ins, then choose custom

Waiting for plugin installation

If it is normal, nothing to say. If like this, some plugins fail, refresh the page, and the next step. The failed plug-in will be installed later.

Create user

Home

Reference link for this article:

https://www.cnblogs.com/lianstyle/p/8778244.html

CentOS7 build jenkins