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Jenkins Docker靜態(tài)agent節(jié)點(diǎn)的構(gòu)建過程

更新時間：2021年10月28日 11:54:51 作者：富士康質(zhì)檢員張全蛋

這篇文章主要介紹了Jenkins Docker靜態(tài)agent節(jié)點(diǎn)的構(gòu)建,靜態(tài)節(jié)點(diǎn)就是通過java -jar這條命令去啟動起來就可以了，本文通過圖文實(shí)例相結(jié)合給大家介紹的非常詳細(xì)，需要的朋友可以參考下

靜態(tài)節(jié)點(diǎn)就是固定的在一臺機(jī)器上面，通過一些固定的命令將其啟動起來，動態(tài)節(jié)點(diǎn)就是來了多個任務(wù)，可以幫你創(chuàng)建多個agent去跑。而不像靜態(tài)節(jié)點(diǎn)來了多個任務(wù)，那么就會等待這個任務(wù)隊(duì)列，然后進(jìn)行這個構(gòu)建。這就是靜態(tài)和動態(tài)的區(qū)別。

靜態(tài)節(jié)點(diǎn)就是通過java -jar這條命令去啟動起來就可以了。

1. 靜態(tài)節(jié)點(diǎn)實(shí)踐

首先，在Jenkins 中創(chuàng)建一個jnlp類型的agent，拿到連接所需要的認(rèn)證和秘鑰信息。

jar -jar這條命令后面有很多的參數(shù)，不管是配置動態(tài)節(jié)點(diǎn)還是靜態(tài)節(jié)點(diǎn)，這些參數(shù)都會用到。

java -jar agent.jar -jnlpUrl http://192.168.1.200:8080/computer/buildtest01/jenkins-agent.jnlp -secret 047a2627be5ee128c1a93f281051acc7bbbbd5221dcb56ae9fa408a494e72c2f -workDir "/home/jenkins"

1.1 Docker靜態(tài)節(jié)點(diǎn)

啟動鏡像，傳遞認(rèn)證參數(shù)。(使用docker的話其實(shí)就是使用一個鏡像，鏡像里面運(yùn)行了一個agent，然后將這些參數(shù)傳遞進(jìn)去)

在虛擬機(jī)上面下載agent.jar包然后手動執(zhí)行這些命令就可以了

在命令行中啟動節(jié)點(diǎn)
 
java -jar agent.jar -jnlpUrl http://139.198.166.235:8080/computer/build%2D02/jenkins-agent.jnlp -secret 942d7e769a43f65388751ee954af20e90fa0c5f8bdb19e0584db4cc61adab8ba -workDir "/var/jenkins"
Run from agent command line, with the secret stored in a file:
 
echo 942d7e769a43f65388751ee954af20e90fa0c5f8bdb19e0584db4cc61adab8ba > secret-file
java -jar agent.jar -jnlpUrl http://139.198.166.235:8080/computer/build%2D02/jenkins-agent.jnlp -secret @secret-file -workDir "/var/jenkins"

如果是在docker里面就需要找一個agent鏡像：inbound-agent鏡像 : Docker Hub

## 測試

[root@jenkins-agent ~]# docker run --init jenkins/inbound-agent -url http://139.198.166.235:8080 -workDir=/home/jenkins 942d7e769a43f65388751ee954af20e90fa0c5f8bdb19e0584db4cc61adab8ba build-02
 
 
 
Oct 28, 2021 2:19:25 AM hudson.remoting.jnlp.Main createEngine
INFO: Setting up agent: build-02
Oct 28, 2021 2:19:25 AM hudson.remoting.jnlp.Main$CuiListener <init>
INFO: Jenkins agent is running in headless mode.
Oct 28, 2021 2:19:25 AM hudson.remoting.Engine startEngine
INFO: Using Remoting version: 4.11
Oct 28, 2021 2:19:25 AM org.jenkinsci.remoting.engine.WorkDirManager initializeWorkDir
INFO: Using /home/jenkins/remoting as a remoting work directory
Oct 28, 2021 2:19:25 AM org.jenkinsci.remoting.engine.WorkDirManager setupLogging
INFO: Both error and output logs will be printed to /home/jenkins/remoting
Oct 28, 2021 2:19:25 AM hudson.remoting.jnlp.Main$CuiListener status
INFO: Locating server among [http://139.198.166.235:8080/]
Oct 28, 2021 2:19:25 AM org.jenkinsci.remoting.engine.JnlpAgentEndpointResolver resolve
INFO: Remoting server accepts the following protocols: [JNLP4-connect, Ping]
Oct 28, 2021 2:19:25 AM hudson.remoting.jnlp.Main$CuiListener status
INFO: Agent discovery successful
  Agent address: 139.198.166.235
  Agent port:    50000
  Identity:      67:e8:d2:73:d1:cf:01:f6:6c:a4:cb:b3:0f:25:8c:3d
Oct 28, 2021 2:19:25 AM hudson.remoting.jnlp.Main$CuiListener status
INFO: Handshaking
Oct 28, 2021 2:19:25 AM hudson.remoting.jnlp.Main$CuiListener status
INFO: Connecting to 139.198.166.235:50000
Oct 28, 2021 2:19:25 AM hudson.remoting.jnlp.Main$CuiListener status
INFO: Trying protocol: JNLP4-connect
Oct 28, 2021 2:19:25 AM org.jenkinsci.remoting.protocol.impl.BIONetworkLayer$Reader run
INFO: Waiting for ProtocolStack to start.
Oct 28, 2021 2:19:26 AM hudson.remoting.jnlp.Main$CuiListener status
INFO: Remote identity confirmed: 67:e8:d2:73:d1:cf:01:f6:6c:a4:cb:b3:0f:25:8c:3d
Oct 28, 2021 2:19:26 AM hudson.remoting.jnlp.Main$CuiListener status
INFO: Connected

## 運(yùn)行

[root@jenkins-agent ~]# docker run -itd --name build-02 jenkins/inbound-agent -url http://139.198.166.235:8080 -workDir=/home/jenkins 942d7e769a43f65388751ee954af20e90fa0c5f8bdb19e0584db4cc61adab8ba build-02
bd2500223dabb45ff41c234a8871651f93b38264458c4d2bed40f821577b8944
 
 
[root@jenkins-agent ~]# docker ps
CONTAINER ID   IMAGE                   COMMAND                  CREATED          STATUS          PORTS     NAMES
bd2500223dab   jenkins/inbound-agent   "/usr/local/bin/jenk??   18 seconds ago   Up 18 seconds             build-02

這里需要注意，docker的靜態(tài)agent里面什么都沒有，比如構(gòu)建工具是沒有的

[root@jenkins-agent ~]# docker exec -it build-02 bash
jenkins@bd2500223dab:~$ mvn
bash: mvn: command not found

所以解決辦法是將agent鏡像作為基礎(chǔ)鏡像，將構(gòu)建工具打進(jìn)去，那么你就可以使用了，或者將工具掛載進(jìn)去。

docker run -itd --name build-02 \
-v /usr/local/apache-maven-3.8.1:/home/jenkins/apache-maven-3.8.1 \
jenkins/inbound-agent -url http://139.198.166.235:8080 -workDir=/home/jenkins 942d7e769a43f65388751ee954af20e90fa0c5f8bdb19e0584db4cc61adab8ba build-02

jenkins@2a682b01263b:~$ /home/jenkins/apache-maven-3.8.1/bin/mvn -v
Apache Maven 3.8.1 (05c21c65bdfed0f71a2f2ada8b84da59348c4c5d)
Maven home: /home/jenkins/apache-maven-3.8.1
Java version: 11.0.12, vendor: Eclipse Foundation, runtime: /opt/java/openjdk
Default locale: en, platform encoding: UTF-8
OS name: "linux", version: "3.10.0-693.el7.x86_64", arch: "amd64", family: "unix"

同理使用docker命令也一樣掛載進(jìn)去。

到此這篇關(guān)于Jenkins Docker靜態(tài)agent節(jié)點(diǎn)的構(gòu)建的文章就介紹到這了,更多相關(guān)Jenkins Docker 節(jié)點(diǎn)內(nèi)容請搜索腳本之家以前的文章或繼續(xù)瀏覽下面的相關(guān)文章希望大家以后多多支持腳本之家！

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