jenkins分步式构建环境（agent）-编程知识

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root@jenkins:~# netstat -antp|grep 50000
tcp6 0 0 :::50000 ::😗 LISTEN 5139/java

1.52 安装Jenkins

root@ubuntu20:~# dpkg -i jenkins_2.414.3_all.deb

配置各种类型的Agent的关键之处在于启动Agent的方式
◼ JNLP Agent对应着“通过Java Web启动代理”这种方式
◼ Master与Slave之间建立一个基于HTTPS协力的Web连接
◼ Slave首次接入Master时，需要提供用于认证的Secret以完成
Bootstrap
配置JNLP Agent创建分布式构建环境的简要步骤
◼ 准备Agent节点，部署好Jenkins
◼ 在Master节点上，添加Agent节点的定义
◼ 在Master节点上，获取将Agent节点连接至Master时需要执行的
命令
◼ 在Agent节点上，打开命令终端，运行Master提示的命令
◼ 在Master节点上验证添加的结果

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/home/jenkins/agent

点击创建的
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agent 1.52 运行命令

root@ubuntu20:~# mkdir /home/jenkins/agent -pv
root@ubuntu20:~# chown -R jenkins.jenkins /home/jenkins/agent/

curl -sO http://192.168.1.51:8080/jnlpJars/agent.jar
java -jar agent.jar -jnlpUrl http://192.168.1.51:8080/computer/jenkins01%2D192%2E168%2E1%2E52/jenkins-agent.jnlp -secret db32e82e85dddf69f96f0f50bd13b5380f5f6de1789f0535c01bb650843c844a -workDir “/home/jenkins/agent”

编辑流水线填写agent的标签
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查看流水线会在agent1.52中部署
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ssh方式连接agent

root@ubuntu20:/var/lib/jenkins/plugins# passwd jenkins
New password: 123456
Retype new password:
passwd: password updated successfully

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使用ssh连接成功
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报错，授权即可

Building remotely on jenkins01-1.52 (linux-agent) in workspace /home/jenkins/agent/workspace/spring-boot-helloword2
The recommended git tool is: NONE
java.lang.ClassNotFoundException: org.jenkinsci.plugins.gitclient.Git$GitAPIMasterToSlaveFileCallablechown -R jenkins:jenkins /var/lib/jenkins/workspace/

使用docker agent

root@jenkins:~/learning-jenkins-cicd/07-jenkins-agents# cat docker-compose-inbound-agent.yml 
version: '3.6'volumes:agent01_data: {}agent02_data: {}networks:jenkins_net:driver: bridgeipam:config:- subnet: 172.31.9.0/24services:agent01:image: jenkins/inbound-agent:alpine-jdk11hostname: agent01.magedu.comuser: rootenvironment:TZ: Asia/ShanghaiJENKINS_URL: http://192.168.1.51:8080   #jenkinsmaster地址JENKINS_AGENT_NAME: agent01.magedu.com  #agent名字JENKINS_AGENT_WORKDIR: /home/jenkins/agentJENKINS_SECRET: 7eecbd2daa66612cac412d4fc484faf80fcee0fc0e8502b12abec11605744074    #jenkins添加节点后的密钥，保持一致# SECRET is automatically generated by the master when adding agent01.volumes:- agent01_data:/appdata/jenkins/networks:jenkins_net:ipv4_address: 172.31.9.11aliases:- slave01- agent01#extra_hosts:#  - "jenkins.magedu.com:172.29.7.7"#restart: alwaysagent02:image: jenkins/inbound-agent:alpine-jdk11hostname: agent02.magedu.comuser: rootenvironment:TZ: Asia/ShanghaiJENKINS_URL: http://192.168.1.51:8080JENKINS_AGENT_NAME: agent02.magedu.comJENKINS_AGENT_WORKDIR: /home/jenkins/agentJENKINS_SECRET: be0e53b93558553ee9694fced68d6443138ee13c5eeaf5d07bfad026d2fd36a6# SECRET is automatically generated by the master when adding agent02.volumes:- agent02_data:/appdata/jenkins/networks:jenkins_net:ipv4_address: 172.31.9.12aliases:- slave02- agent02#extra_hosts:#  - "jenkins.magedu.com:172.29.7.7"#restart: always

yaml文件 JENKINS_SECRET和jenkins中添加的密钥要一致

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运行
docker-compose -f docker-compose-inbound-agent.yml up

运行成功后
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添加流水线可以使用

通过docker ssh 连接

ssh-keygen -t rsa -b 2048 -P ‘’
Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa): .jenkins-ssh-agent-rsa
Your identification has been saved in .jenkins-ssh-agent-rsa
Your public key has been saved in .jenkins-ssh-agent-rsa.pub

查看并替换yanl

root@jenkins:~# cat .jenkins-ssh-agent-rsa.pub 
ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDPIv6Hjrl0r4QroJe++/xx3wMJesjoKW7Or16ilVTEXLP5PahwJyNlRZIJN5JdmFwu6QV/izQw0JvyceOo5Gebo1LZW6qZmhMJAJB537U38l1Wex7iIpnTlugrLkq2CtaOPKNEYEXBXH0SOaZuTosMoSLI83CBHlWWzAKcd/WRWQOMB48eABGvxC8LZDzrsA/uA3kIRaJS56PeWkBWK/OU/inCfzmSUVbN5uY3eRV/WHZ32R2dk9ELbmBjcxt+w2h+a0aWCuWj4wSQd8Oy0LfFTuuP+PwCpWasJqhIf3r+nms72oXk1qS9P7peFGybSDGePbW8BD209gJ3UzERif/j root@jenkins

 cat docker-compose-ssh-agent.yml 
version: '3.6'volumes:ssh_agent01_data: {}ssh_agent02_data: {}networks:jenkins_net:driver: bridgeipam:config:- subnet: 172.31.9.0/24services:ssh-agent01:image: jenkins/ssh-agent:jdk11hostname: ssh-agent01.magedu.com#user: jenkinsenvironment:TZ: Asia/ShanghaiJENKINS_AGENT_HOME: /home/jenkinsJENKINS_AGENT_SSH_PUBKEY: ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDPIv6Hjrl0r4QroJe++/xx3wMJesjoKW7Or16ilVTEXLP5PahwJyNlRZIJN5JdmFwu6QV/izQw0JvyceOo5Gebo1LZW6qZmhMJAJB537U38l1Wex7iIpnTlugrLkq2CtaOPKNEYEXBXH0SOaZuTosMoSLI83CBHlWWzAKcd/WRWQOMB48eABGvxC8LZDzrsA/uA3kIRaJS56PeWkBWK/OU/inCfzmSUVbN5uY3eRV/WHZ32R2dk9ELbmBjcxt+w2h+a0aWCuWj4wSQd8Oy0LfFTuuP+PwCpWasJqhIf3r+nms72oXk1qS9P7peFGybSDGePbW8BD209gJ3UzERif/j  root@jenkins# SSH PRIVATE KEY and PUBLIC KEY is generated by you.networks:jenkins_net:ipv4_address: 172.31.9.21aliases:- ssh-slave01- ssh-agent01ports:- "22022:22"#restart: alwaysssh-agent02:image: jenkins/ssh-agent:jdk11hostname: ssh-agent02.magedu.com#user: jenkinsenvironment:TZ: Asia/Shanghai#JENKINS_AGENT_HOME: /home/jenkinsJENKINS_AGENT_SSH_PUBKEY: ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDPIv6Hjrl0r4QroJe++/xx3wMJesjoKW7Or16ilVTEXLP5PahwJyNlRZIJN5JdmFwu6QV/izQw0JvyceOo5Gebo1LZW6qZmhMJAJB537U38l1Wex7iIpnTlugrLkq2CtaOPKNEYEXBXH0SOaZuTosMoSLI83CBHlWWzAKcd/WRWQOMB48eABGvxC8LZDzrsA/uA3kIRaJS56PeWkBWK/OU/inCfzmSUVbN5uY3eRV/WHZ32R2dk9ELbmBjcxt+w2h+a0aWCuWj4wSQd8Oy0LfFTuuP+PwCpWasJqhIf3r+nms72oXk1qS9P7peFGybSDGePbW8BD209gJ3UzERif/j  root@jenkins# SSH PRIVATE KEY and PUBLIC KEY is generated by you.networks:jenkins_net:ipv4_address: 172.31.9.22aliases:- ssh-slave02- ssh-agent02ports:- "22122:22"#restart: always

运行容器
root@jenkins:~/learning-jenkins-cicd/07-jenkins-agents# docker-compose -f docker-compose-ssh-agent.yml up

在jenkins创建，私钥保存为认证凭证

cat  .jenkins-ssh-agent-rsa
-----BEGIN OPENSSH PRIVATE KEY-----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-----END OPENSSH PRIVATE KEY-----

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jenkins添加从节点
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192.168.1.51 是jenkins容器运行所在的宿主机
Host Key Verification Strategy 选non
/opt/java/openjdk/bin/java 是容器里面的java路径
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基于Docker容器的动态Agent

#192.168.1.52
docker service 添加
vim /usr/lib/systemd/system/docker.service
-H tcp://0.0.0.0:2376

root@ubuntu20:~/.ssh# systemctl daemon-reload
root@ubuntu20:~/.ssh# systemctl restart docker.service

jenkins 服务器测试

root@jenkins:~# curl http://192.168.1.52:2376/version
{"Platform":{"Name":"Docker Engine - Community"},"Components":[{"Name":"Engine","Version":"24.0.7","Details":{"ApiVersion":"1.43","Arch":"amd64","BuildTime":"2023-10-26T09:08:01.000000000+00:00","Experimental":"false","GitCommit":"311b9ff","GoVersion":"go1.20.10","KernelVersion":"5.4.0-81-generic","MinAPIVersion":"1.12","Os":"linux"}},{"Name":"containerd","Version":"1.6.24","Details":{"GitCommit":"61f9fd88f79f081d64d6fa3bb1a0dc71ec870523"}},{"Name":"runc","Version":"1.1.9","Details":{"GitCommit":"v1.1.9-0-gccaecfc"}},{"Name":"docker-init","Version":"0.19.0","Details":{"GitCommit":"de40ad0"}}],"Version":"24.0.7","ApiVersion":"1.43","MinAPIVersion":"1.12","GitCommit":"311b9ff","GoVersion":"go1.20.10","Os":"linux","Arch":"amd64","KernelVersion":"5.4.0-81-generic","BuildTime":"2023-10-26T09:08:01.000000000+00:00"}