docker-compose安装Jenkins

一、Jenkins介绍

Jenkins是一个开源软件项目，起源于Hudson（Hudson是商用的），是基于Java开发的一种持续集成工具，用于监控持续重复的工作，旨在提供一个开放易用的软件平台，使软件项目可以进行持续集成。

二、docker-compose安装

Linux上我们可以从Github上下载它的二进制包来使用，最新发行的版本地址：https://github.com/docker/compose/releases。

1、运行以下命令以下载Docker Compose的v2.11.0版本

[root@k8s-master ~]# wget -O /usr/bin/docker-compose https://github.com/docker/compose/releases/download/v2.11.0/docker-compose-linux-x86_64

2、授权可执行权限

[root@k8s-master ~]# chmod +x /usr/bin/docker-compose

3、测试是否安装成功

[root@k8s-master ~]# docker-compose -v

Docker Compose version v2.11.0

三、Docker安装

Docker支持以下的64位CentOS版本：

• CentOS 7
  
• CentOS 8
  
• 更高版本...
  

1）使用官方安装脚本自动安装

安装命令如下：

[root@localhost ~]# curl -fsSL https://get.docker.com | bash -s docker --mirror Aliyun

也可以使用国内daocloud一键安装命令：

[root@localhost ~]# curl -sSL https://get.daocloud.io/docker | sh

2）使用阿里云源安装

[root@localhost ~]# yum -y install yum-utils device-mapper-persistent-data lvm2

[root@localhost ~]# yum-config-manager --add-repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

[root@localhost ~]# yum -y install docker-ce docker-ce-cli containerd.io

3）配置镜像加速器

[root@localhost ~]# mkdir -p /etc/docker

[root@localhost ~]# vim /etc/docker/daemon.json

# 添加以下内容

{
	"registry-mirrors": [
	"https://hub-mirror.c.163.com",
	"https://reg-mirror.qiniu.com",
	"https://cr.console.aliyun.com",
	"https://docker.mirrors.ustc.edu.cn"
	]
}

4）启动Docker

[root@localhost ~]# systemctl enable docker

[root@localhost ~]# systemctl start docker

四、Jenkins安装

1）拉取Jenkins镜像

# 查询Jenkins镜像

[root@localhost ~]# docker search jenkins

[root@localhost ~]# docker pull jenkins/jenkins:lts

lts: Pulling from jenkins/jenkins

34df401c391c: Pull complete

0a9fd8e53c6a: Pull complete

391e27ed62a1: Pull complete

68537fbf33f7: Pull complete

df6bb788e02d: Pull complete

c9125b38315d: Pull complete

f1260ad0128a: Pull complete

d3bdc68f4f05: Pull complete

a92b2c570148: Pull complete

3796b61e99d2: Pull complete

a554f110ec9b: Pull complete

f0fa1508981d: Pull complete

d23784115f48: Pull complete

Digest: sha256:1638b593a6a86649c1c9f18d62dc8f233122bb1f7518ec525b34029804b404dc

Status: Downloaded newer image for jenkins/jenkins:lts

docker.io/jenkins/jenkins:lts

2）创建Jenkins数据持久化目录

[root@localhost ~]# mkdir -p /data/jenkins

3）编写docker-compose.yml

[root@localhost ~]# mkdir -p /opt/jenkins

[root@localhost ~]# vim /opt/jenkins/docker-compose.yml

version: '3.3'
services:
  jenkins:
    user: root                  
    restart: always              
    image: jenkins/jenkins:lts    
    container_name: jenkins        
    ports:                          
      - 8080:8080                    
      - 50000:50000
    volumes:                          
      - /data/jenkins:/var/jenkins_home
      - /var/run/docker.sock:/var/run/docker.sock
      - /usr/bin/docker:/usr/bin/docker
      - /usr/local/bin/docker-compose:/usr/local/bin/docker-compose

4）启动Jenkins

[root@localhost ~]# docker-compose -f /opt/jenkins/docker-compose.yml up -d

5）查看Jenkins运行情况

[root@localhost ~]# docker-compose -f /opt/jenkins/docker-compose.yml ps -a

NAME IMAGE COMMAND SERVICE CREATED STATUS PORTS

jenkins jenkins/jenkins:lts "/usr/bin/tini -- /u…" jenkins About a minute ago Up About a minute 0.0.0.0:8080->8080/tcp, :::8080->8080/tcp, 0.0.0.0:50000->50000/tcp, :::50000->50000/tcp

五、Jenkins使用

1）访问Jenkins

# 浏览器输入http://192.168.36.198:8080，如下图所示

2）密码查看方式

[root@localhost ~]# cat /data/jenkins/secrets/initialAdminPassword

0803aa850a39414f9171807f8d52c419

3）选择推荐插件

4）使用默认admin用户

5）配置Jenkins URL

6）修改admin密码