DEVOPS技术实践_01:jenkins集成平台

一、准备环境

准备三台机器

角色	IP地址	用户名	密码
jenkins-master	172.25.254.130	admin	meiyoumima
gitlab	172.25.254.131	tseter	meiyoumima
jenkins-slave（Maven	172.25.254.134	N/A	N/A

二、jenkins-master安装

2.1 安装Java

[root@jenkins-master ~]# yum install java-1.8.0-openjdk-devel.x86_64

[root@jenkins-master ~]# vi /etc/profile

export JAVA_HOME=/usr/lib/jvm/usr/lib/jvm/java-1.8.-openjdk-1.8.0.201.b09-.el7_6.x86_64
export CLASSPATH=.:$JAVA_HOME/jre/lib/rt.jar:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
export PATH=$PATH:$JAVA_HOME/bin

[root@jenkins-master ~]# source /etc/profile

[root@jenkins-master ~]# java -version

openjdk version "1.8.0_201"
OpenJDK Runtime Environment (build 1.8.0_201-b09)
OpenJDK -Bit Server VM (build 25.201-b09, mixed mode)
[root@jenkins-master ~]# vi /etc/profile

2.2 安装jenkins

[root@jenkins-master ~]# cd /usr/local/src/

[root@jenkins-master src]# wget http://mirrors.jenkins.io/war-stable/latest/jenkins.war

[root@jenkins-master src]# nohup java -jar /usr/local/src/jenkins.war --httpPort=9000 &

[root@jenkins-master src]# tail -f nohup.out

Jenkins initial setup is required. An admin user has been created and a password generated.
Please use the following password to proceed to installation:
 
5d3a5a8d50304bcf90845c6b55e4e280
 
This may also be found at: /root/.jenkins/secrets/initialAdminPassword

[root@jenkins-master ~]# cat /root/.jenkins/secrets/initialAdminPassword

5d3a5a8d50304bcf90845c6b55e4e280

安装插件

创建用户

三、安装gitlab

3.1 安装依赖

[root@gitlab ~]# yum install -y curl policycoreutils-python openssh-server

[root@gitlab ~]# systemctl enable sshd

[root@gitlab ~]# systemctl restart sshd

[root@gitlab ~]# yum install -y postfix

[root@gitlab ~]# firewall-cmd --add-service=ssh --permanent

[root@gitlab ~]# firewall-cmd --add-service=http --permanent

[root@gitlab ~]# firewall-cmd --reload

3.2 添加GitLab社区版Package

[root@gitlab ~]# curl https://packages.gitlab.com/install/repositories/gitlab/gitlab-ce/script.rpm.sh | sudo bash

[root@gitlab ~]#  yum install -y gitlab-ce

3.3 配置GitLab站点Url

GitLab默认的配置文件路径是/etc/gitlab/gitlab.rb

默认的站点Url配置项是：external_url 'http://gitlab.example.com'

这里我将GitLab站点Url修改external_url 'http://172.25.254.131'


3.4 启动gitlab

[root@gitlab ~]# gitlab-ctl reconfigure

Running handlers:
Running handlers complete
Chef Client finished, / resources updated in  minutes  seconds
gitlab Reconfigured!

四、jenkins配置slave

4.1 master端配置

点击系统管理------------------->全局安全配置----------------->设置TCP端口

系统管理-节点管理-新建节点：

店家slave1

4.2 配置slave

在slave节点上安装agent.jar

[root@node5 ~]# yum -y install java-1.8.0-openjdk-devel.x86_64

[root@node5 ~]# vim /etc/profile

export JAVA_HOME=/usr/lib/jvm/java-1.8.-openjdk-1.8.0.201.b09-.el7_6.x86_64
export CLASSPATH=.:$JAVA_HOME/jre/lib/rt.jar:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
export PATH=$PATH:$JAVA_HOME/bin

[root@node5 ~]# java -version

openjdk version "1.8.0_201"
OpenJDK Runtime Environment (build 1.8.0_201-b09)
OpenJDK -Bit Server VM (build 25.201-b09, mixed mode)

[root@node5 ~]# mkdir /usr/local/jenkins-slave

[root@node5 ~]# cd /usr/local/jenkins-slave/

[root@node5 jenkins-slave]# ll

-rw-r--r--.  root root  Apr    agent.jar

根据提示执行

[root@node5 jenkins-slave]#  java -jar agent.jar -jnlpUrl http://172.25.254.130:9000/computer/slave1/slave-agent.jnlp -secret e8b183c671c0f5efa09380c04bc54dedd1299528d2fce5d358a4c7b7b5af437d -workDir "/var/jenkins"

放后台启动

[root@node5 jenkins-slave]#nohup java -jar agent.jar -jnlpUrl http://172.25.254.130:9000/computer/slave1/slave-agent.jnlp -secret e8b183c671c0f5efa09380c04bc54dedd1299528d2fce5d358a4c7b7b5af437d -workDir "/var/jenkins" &

[root@node5 jenkins-slave]# tail nohup.out

Apr ,  :: PM hudson.remoting.jnlp.Main$CuiListener status
INFO: Handshaking
Apr ,  :: PM hudson.remoting.jnlp.Main$CuiListener status
INFO: Connecting to 172.25.254.130:
Apr ,  :: PM hudson.remoting.jnlp.Main$CuiListener status
INFO: Trying protocol: JNLP4-connect
Apr ,  :: PM hudson.remoting.jnlp.Main$CuiListener status
INFO: Remote identity confirmed: e7:b8:::e5::c4:3f:a2:ca:9d::::7a:ce
Apr ,  :: PM hudson.remoting.jnlp.Main$CuiListener status
INFO: Connected

刷新页面

成功连接

五、Jenkins构建maven项目

5.1安装maven

[root@node5 jenkins-slave]# mkdir /usr/local/maven

[root@node5 jenkins-slave]# cd /usr/local/maven

[root@node5 maven]# wget http://apache.communilink.net/maven/maven-3/3.6.1/binaries/apache-maven-3.6.1-bin.tar.gz

[root@node5 maven]# tar -xf apache-maven-3.6.1-bin.tar.gz

[root@node5 maven]# ll

total
drwxr-xr-x.  root root  Apr  : apache-maven-3.6.
-rw-r--r--.  root root  Apr  : apache-maven-3.6.-bin.tar.gz

[root@node5 maven]# cd apache-maven-3.6.1

[root@node5 apache-maven-3.6.1]# pwd

/usr/local/maven/apache-maven-3.6.

[root@node5 apache-maven-3.6.1]# vim /etc/profile

export M2_HOME=/usr/local/maven/apache-maven-3.6.
export PATH=$PATH:$M2_HOME/bin

[root@node5 apache-maven-3.6.1]# mvn -version

The JAVA_HOME environment variable is not defined correctly
This environment variable is needed to run this program
NB: JAVA_HOME should point to a JDK not a JRE

是因为Java的环境变量配置错误

修改

export JAVA_HOME=/usr/lib/jvm/java-1.8.-openjdk-1.8.0.201.b09-.el7_6.x86_64
export CLASSPATH=.:$JAVA_HOME/jre/lib/rt.jar:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
export PATH=$PATH:$JAVA_HOME/bin
export M2_HOME=/usr/local/maven/apache-maven-3.6.
export PATH=$PATH:$M2_HOME/bin

[root@node5 apache-maven-3.6.1]# source /etc/profile

[root@node5 apache-maven-3.6.1]# mvn -version

Apache Maven 3.6. (d66c9c0b3152b2e69ee9bac180bb8fcc8e6af555; --05T03::+:)
Maven home: /usr/local/maven/apache-maven-3.6.
Java version: 1.8.0_201, vendor: Oracle Corporation, runtime: /usr/lib/jvm/java-1.8.-openjdk-1.8.0.201.b09-.el7_6.x86_64/jre
Default locale: en_US, platform encoding: UTF-
OS name: "linux", version: "3.10.0-693.el7.x86_64", arch: "amd64", family: "unix"
[root@node5 apache-maven-3.6.]# vim /etc/profile

[root@node5 apache-maven-3.6.1]# mvn

[INFO] Finished at: --10T23::+:

5.2简单测试Maven项目

在github找一个maven项目

https://github.com/initcron/mvn-test

[root@node5 ~]# mkdir /git

[root@node5 ~]# cd /git

[root@node5 git]# git clone https://github.com/initcron/mvn-test

[root@node5 git]# ll

drwxr-xr-x.  root root  Apr  : mvn-test

[root@node5 git]# cd mvn-test/

[root@node5 mvn-test]# ll

所有的maven项目都有一个pom.xml的文件

5.3 maven简单用法

[root@node5 mvn-test]# mvn clean    #清除缓存数据

[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  8.527 s
[INFO] Finished at: --11T00::+:

[root@node5 mvn-test]# cat pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
  <modelVersion>4.0.</modelVersion>
  <groupId>com.example.app</groupId>
  <artifactId>maven-app</artifactId>
  <packaging>jar</packaging>
  <version>1.3-SNAPSHOT</version>
  <name>maven-app</name>
  <url>http://maven.apache.org</url>
  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.</version>
      <scope>test</scope>
    </dependency>
  </dependencies>
</project>

打包

[root@node5 mvn-test]# mvn install

[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  : min
[INFO] Finished at: --11T00::+:
[INFO] ------------------------------------------------------------------------

会生成一个target目录

5.4 测试

[root@node5 mvn-test]# mvn test

[root@node5 mvn-test]# ll

drwxr-xr-x.  root root  Apr  : target

[root@node5 mvn-test]# cd target/

[root@node5 target]# ll

drwxr-xr-x.  root root    Apr  : classes
-rw-r--r--.  root root  Apr  : maven-app-1.3-SNAPSHOT.jar   #生成一个可以直接运行的jar包
drwxr-xr-x.  root root    Apr  : maven-archiver
drwxr-xr-x.  root root    Apr  : maven-status
drwxr-xr-x.  root root    Apr  : surefire-reports
drwxr-xr-x.  root root    Apr  : test-classes

[root@node5 target]# java -jar maven-app-1.3-SNAPSHOT.jar

上传到自己本地的仓库

六、手动构建项目

6.1 创建一个新的project

6.2 把这个项目clone到本地

[root@node5 mvn-test01]# cd /git/

[root@node5 git]# git clone http://172.25.254.131/tester/mvn-test01.git

[root@node5 git]# ll

drwxr-xr-x.  root root  Apr  : mvn-test
drwxr-xr-x.  root root  Apr  : mvn-test01

[root@node5 mvn-test01]# mv ../mvn-test/* ./
[root@node5 mvn-test01]# ll

-rw-r--r--.  root root  Apr  : pom.xml
drwxr-xr-x.  root root   Apr  : src
drwxr-xr-x.  root root  Apr  : target

6.3 提交

[root@node5 mvn-test01]# git add *

[root@node5 mvn-test01]# git commit -m 'test'

*** Please tell me who you are.
 
Run
 
  git config --global user.email "you@example.com"
  git config --global user.name "Your Name"
 
to set your account's default identity.
Omit --global to set the identity only in this repository.
 
fatal: unable to auto-detect email address (got 'root@node5.(none)')

[root@node5 mvn-test01]# git init

Reinitialized existing Git repository in /git/mvn-test01/.git/

[root@node5 mvn-test01]# git config user.name 'tester'

[root@node5 mvn-test01]# git config user.email joy04007@gmail.com

[root@node5 mvn-test01]# git add *

[root@node5 mvn-test01]# git commit -m 'test'

 create mode  pom.xml
 create mode  src/main/java/com/example/app/App.java
 create mode  src/test/java/com/example/app/AppTest.java
 create mode  target/classes/com/example/app/App.class
 create mode  target/maven-app-1.3-SNAPSHOT.jar
 create mode  target/maven-archiver/pom.properties
 create mode  target/maven-status/maven-compiler-plugin/compile/default-compile/createdFiles.lst
 create mode  target/maven-status/maven-compiler-plugin/compile/default-compile/inputFiles.lst
 create mode  target/maven-status/maven-compiler-plugin/testCompile/default-testCompile/createdFiles.lst
 create mode  target/maven-status/maven-compiler-plugin/testCompile/default-testCompile/inputFiles.lst
 create mode  target/surefire-reports/TEST-com.example.app.AppTest.xml
 create mode  target/surefire-reports/com.example.app.AppTest.txt
 create mode  target/test-classes/com/example/app/AppTest.class

[root@node5 mvn-test01]# git push

warning: push.default is unset; its implicit value is changing in
Git 2.0 from 'matching' to 'simple'. To squelch this message
and maintain the current behavior after the default changes, use:
 
  git config --global push.default matching
 
To squelch this message and adopt the new behavior now, use:
 
  git config --global push.default simple
 
See 'git help config' and search for 'push.default' for further information.
(the 'simple' mode was introduced in Git 1.7.. Use the similar mode
'current' instead of 'simple' if you sometimes use older versions of Git)
 
Username for 'http://172.25.254.131': tester
Password for 'http://tester@172.25.254.131':
No refs in common and none specified; doing nothing.
Perhaps you should specify a branch such as 'master'.
Everything up-to-date

[root@node5 mvn-test01]# git push origin  master

Username for 'http://172.25.254.131': tester
Password for 'http://tester@172.25.254.131':
Counting objects: , done.
Delta compression using up to  threads.
Compressing objects: % (/), done.
Writing objects: % (/), 6.13 KiB |  bytes/s, done.
Total  (delta ), reused  (delta )
To http://172.25.254.131/tester/mvn-test01.git
 * [new branch]      master -> master

6.4 打开gitlab验证

构建成功