通过jenkins发布java项目到目标主机上的详细步骤

发布java项目的步骤：

• 拉取代码并打包
• mvn clean package
• 备份目标服务器上已有的要发布项目
• 将包传到目标服务器的webapss目录中
• 需做免密登录
• 重启目标服务器的tomcat服务
• 修改项目的配置
• 重启目标服务器的tomcat服务

项目要求:

两台主机上分别安装jenkins，tomcat

jenkins主机上操作

#两台主机做免密登录
[root@localhost ~]# ssh-keygen -t rsa
Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa):
Created directory '/root/.ssh'.
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /root/.ssh/id_rsa.
Your public key has been saved in /root/.ssh/id_rsa.pub.
The key fingerprint is:
SHA256:0zPiM+3ypvmYPisJbeL8LhA2QApiAVqwF9C+gyASonU root@localhost.localdomain
The key's randomart image is:
+---[RSA 3072]----+
|OB+              |
|Xoo.E            |
|*=..             |
|=.=      .       |
|+o + .  S +      |
|. + o o. + o     |
|   = + .+ .      |
|    + o oB.      |
|     +ooBO+      |
+----[SHA256]-----+

[root@localhost ~]# ssh-copy-id root@192.168.8.131
/usr/bin/ssh-copy-id: INFO: Source of key(s) to be installed: "/root/.ssh/id_rsa.pub"
The authenticity of host '192.168.8.131 (192.168.8.131)' can't be established.
ECDSA key fingerprint is SHA256:WbxvLgdwExwRlMT4gaAC1bVyIovZnAwwX1DX8dv6Rs0.
Are you sure you want to continue connecting (yes/no/[fingerprint])? yes
/usr/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any that are already installed
/usr/bin/ssh-copy-id: INFO: 1 key(s) remain to be installed -- if you are prompted now it is to install the new keys
root@192.168.8.131's password: 

Number of key(s) added: 1

Now try logging into the machine, with:   "ssh 'root@192.168.8.131'"
and check to make sure that only the key(s) you wanted were added.

#安装软件
[root@localhost ~]# yum -y install git maven

新建项目

拉取代码链接：https://gitee.com/neawalke/tomcat-java-demo.git

当拉取的代码是私有仓库

测试访问页面

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