第十章 Docker安装Jenkins-2.249.3-1.1

一、安装Docker

Docker部署Jenkins前提已经安装Docker，这边脚本安装Docker。

#1.编写Docker安装脚本
[root@ip-10-0-12-212 ~]# vim Ins_Docker.sh 
#!/usr/bin/bash
# Author:jh
# Time:2021-10-09  11:54:22
# Name:Ins_Docker.sh
# Version: 1.0
# Discription: To  
source /etc/init.d/functions

rely_software=(yum-utils device-mapper-persistent-data lvm2)

echo "-----------------#1.检测系统内核版本-----------------"
kernel_version=`uname -a |awk '{print $3}'|cut -d. -f1`
[ $kernel_version -ge 3 ] &&  action "The System Install Docker is ..." /usr/bin/true || action "The System Can not Install Docker is ..." /usr/bin/false;exit
 
echo "-----------------#2.安装Docker依赖软件-----------------"
for i in ${rely_software[*]}
do       
    rpm -q $i &>/dev/null
    if [ $? -eq 0 ];then
        echo "$i is installed"            
    else            
        yum -y install $i  &>/dev/null                                                           
        action "$i is installing"  /usr/bin/true           
    fi                     
done

echo "-----------------#3.添加Docker镜像源-----------------"
yum-config-manager --add-repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
[ $? -eq 0 ] && action "Docker Image add is ..." /usr/bin/true || echo "Docker Image add is ..." /usr/bin/false;exit

echo "-----------------#4.安装Docker-----------------"
yum -y install docker-ce 
rpm -qa |grep docker-ce 
[ $? -eq 0 ] && action "Docker-ce is installed ..." /usr/bin/true || action "Docker-ce is install ..." /usr/bin/false;exit

echo "-----------------#5.启动Docker并设置开机自启-----------------"
systemctl enable --now docker
[ $? -eq 0 ] && action "Docker Start is ...;" /usr/bin/true || action "Docker start is ..." /usr/bin/false
docker_version=`docker -v |awk -F ',' '{print $1}'`

echo "-----------------#6.设置Docker加速器-----------------"
sudo mkdir -p /etc/docker
sudo cat >/etc/docker/daemon.json <<EOF
{
      "registry-mirrors": ["https://8mh75mhz.mirror.aliyuncs.com"]
  }
EOF
sudo systemctl daemon-reload
sudo systemctl restart docker

echo "-----------------#7.查看Docker是否安装完成-----------------"
cat << EOF
+-------------------------------------------------+
| $docker_version 安 装 已 完 成           |
| 请 使 用 相 关 服 务 !                          |
+-------------------------------------------------+
EOF

echo "-----------------#8.迁移Docker根目录-----------------"
systemctl  stop docker
mv /var/lib/docker/ /data/
sed -i 's#ExecStart=/usr/bin/dockerd#ExecStart=/usr/bin/dockerd --graph=/data/docker#g' /usr/lib/systemd/system/docker.service
systemctl daemon-reload
systemctl start docker.service

echo "-----------------#9.验证Docker根目录是否生效-----------------"
docker info |grep "Docker Root Dir"

sleep 5

echo ""-----------------你的小可爱已完成Docker全部部署-----------------"

#2.给脚本添加执行权限
[root@ip-10-0-12-212 ~]# chmod +x Ins_Docker.sh 

#3.执行脚本
[root@ip-10-0-12-212 ~]# sh Ins_Docker.sh 

二、拉取Jenkins镜像文件

[root@ip-10-0-12-212 ~]# docker pull jenkins/jenkins

三、创建挂载目录并授权

[root@ip-10-0-12-212 ~]# mkdir -p /data/jenkins_mount
[root@ip-10-0-12-212 ~]# chmod  777 /data/jenkins_mount

四、创建并启动Jenkins容器

[root@ip-10-0-12-212 ~]# docker run -d -p 10240:8080 -p 10241:50000 -v /data/jenkins_mount:/var/jenkins_home -v /etc/localtime:/etc/localtime --name Datalake_Jenkins jenkins/jenkins
e0a9964d61fd5eb9f1c0eae0f2f18bdbfcd03ff0d5c2cc0d0beae31c134afa75

五、查看jenkins是否启动成功

[root@ip-10-0-12-212 ~]# docker ps
CONTAINER ID   IMAGE             COMMAND                  CREATED          STATUS          PORTS                                                                                        NAMES
e0a9964d61fd   jenkins/jenkins   "/sbin/tini -- /usr/…"   13 seconds ago   Up 12 seconds   0.0.0.0:10240->8080/tcp, :::10240->8080/tcp, 0.0.0.0:10241->50000/tcp, :::10241->50000/tcp   Datalake_Jenkin

六、查看docker容器日志

[root@ip-10-0-12-212 ~]# docker logs Datalake_Jenkins
Running from: /usr/share/jenkins/jenkins.war
webroot: EnvVars.masterEnvVars.get("JENKINS_HOME")
2021-10-18 02:00:12.630+0000 [id=1]	INFO	org.eclipse.jetty.util.log.Log#initialized: Logging initialized @1247ms to org.eclipse.jetty.util.log.JavaUtilLog
2021-10-18 02:00:12.772+0000 [id=1]	INFO	winstone.Logger#logInternal: Beginning extraction from war file
2021-10-18 02:00:14.184+0000 [id=1]	WARNING	o.e.j.s.handler.ContextHandler#setContextPath: Empty contextPath
2021-10-18 02:00:14.319+0000 [id=1]	INFO	org.eclipse.jetty.server.Server#doStart: jetty-9.4.43.v20210629; built: 2021-06-30T11:07:22.254Z; git: 526006ecfa3af7f1a27ef3a288e2bef7ea9dd7e8; jvm 11.0.12+7
2021-10-18 02:00:14.887+0000 [id=1]	INFO	o.e.j.w.StandardDescriptorProcessor#visitServlet: NO JSP Support for /, did not find org.eclipse.jetty.jsp.JettyJspServlet
2021-10-18 02:00:14.969+0000 [id=1]	INFO	o.e.j.s.s.DefaultSessionIdManager#doStart: DefaultSessionIdManager workerName=node0
2021-10-18 02:00:14.969+0000 [id=1]	INFO	o.e.j.s.s.DefaultSessionIdManager#doStart: No SessionScavenger set, using defaults
2021-10-18 02:00:14.973+0000 [id=1]	INFO	o.e.j.server.session.HouseKeeper#startScavenging: node0 Scavenging every 660000ms
2021-10-18 02:00:15.909+0000 [id=1]	INFO	hudson.WebAppMain#contextInitialized: Jenkins home directory: /var/jenkins_home found at: EnvVars.masterEnvVars.get("JENKINS_HOME")
2021-10-18 02:00:16.516+0000 [id=1]	INFO	o.e.j.s.handler.ContextHandler#doStart: Started w.@316a598d{Jenkins v2.316,/,file:///var/jenkins_home/war/,AVAILABLE}{/var/jenkins_home/war}
2021-10-18 02:00:16.586+0000 [id=1]	INFO	o.e.j.server.AbstractConnector#doStart: Started ServerConnector@505a9d7c{HTTP/1.1, (http/1.1)}{0.0.0.0:8080}

七、访问Jenkins

访问Jenkins页面，http://52.82.80.128:10240

八、安装Jenkins

[root@ip-10-0-12-212 ~]# cd /data/jenkins_mount/
[root@ip-10-0-12-212 jenkins_mount]# cat secrets/initialAdminPassword 
67925445271c4fe593ba83eede0f9c75

#2.选择安装推荐的插件

#3.填入相应的管理用户信息，点击保存并完成。

#4.配置此处Jenkins的URL。

#5.此处Jenkins已经安装就绪，点击开始使用Jenkins。

#6.此处已经进入Jenkins页面，右下角显示安装的版本号，至此Jenkins安装完毕。