jenkins 搭建

1. 环境搭建

1.1 环境

10.0.0.237 gitlab
10.0.0.227 jenkins
10.0.0.217 nginx-lb
10.0.0.82 developer-2/websrv-2
10.0.0.81 developer-1/websrv-1

1.2 developer-2上完成wordpress项目创建

[18:25:47 root@developer-2 ~]#tar xf wordpress-5.7.2.tar.gz 
[18:28:17 root@developer-2 ~]#cd wordpress/
[18:28:25 root@developer-2 ~/wordpress]#git remote -v
fatal: not a git repository (or any of the parent directories): .git
[18:28:27 root@developer-2 ~/wordpress]#git init
Initialized empty Git repository in /root/wordpress/.git/

1.3 关联仓库, 首次提交代码

[18:28:29 root@developer-2 ~/wordpress]#git remote add origin http://gitlab.abc.com/devops/wordpress.git
[18:28:57 root@developer-2 ~/wordpress]#git add .
[18:29:02 root@developer-2 ~/wordpress]#git commit -m '首次提交代码'

[18:29:25 root@developer-2 ~/wordpress]#git push origin master

图片.png

1.4 Jenkins创建freestyle项目, 然后配置gitlab仓库项目对应地址

图片.png

1.5 测试构建

图片.png

2. 手动实现集群架构代码上线

2.1 nginx负载均衡配置

[13:07:11 root@lb /etc/nginx/conf.d]#vim wordpress.conf

upstream wordpress {                                                                                                                                                                

    server 10.0.0.81:9000;
    server 10.0.0.82:9000;

}

server {
    server_name wordpress.abc.com;
    listen 80;
    location / {
    
        root /data/project/wordpress;
        index index.php index.html index.html;       
    }

    location ~ \.php$ {
    
        root /code/wordpress;
        fastcgi_pass wordpress;
        fastcgi_index index.php;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        include fastcgi_params;

    }


}
~                                                                                                                                                                                   
~

[13:08:54 root@lb ~]#mkdir /data/project/wordpress -p

[13:08:57 root@lb ~]#nginx -t
nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
nginx: configuration file /etc/nginx/nginx.conf test is successful
[13:18:54 root@lb ~]#nginx -s reload

2.2 配置10.0.0.81-php

[13:11:44 root@developer-1 ~]#yum -y install php-fpm php-mysqlnd php-json
mkdir /code/wordpress

[13:14:13 root@developer-1 ~]#vim /etc/php-fpm.d/www.conf 

user = nginx
group = nginx
listen = 9000
listen.owner = nginx
listen.group = nginx
listen.mode = 0660  
;listen.allowed_clients = 127.0.0.1

[13:15:17 root@developer-1 ~]#systemctl enable --now php-fpm
Created symlink /etc/systemd/system/multi-user.target.wants/php-fpm.service → /usr/lib/systemd/system/php-fpm.service.

2.3 配置10.0.0.82-php

[13:11:45 root@developer-2 ~]#yum -y install php-fpm php-mysqlnd php-json
mkdir /code/wordpress

[13:16:21 root@developer-2 ~]#vim /etc/php-fpm.d/www.conf 
user = nginx
group = nginx
listen = 9000
listen.owner = nginx
listen.group = nginx
listen.mode = 0660  
;listen.allowed_clients = 127.0.0.1

[13:16:59 root@developer-2 ~]#systemctl enable --now php-fpm
Created symlink /etc/systemd/system/multi-user.target.wants/php-fpm.service → /usr/lib/systemd/system/php-fpm.service.

2.4 部署MySQL

10.0.0.83

[15:30:51 root@mysql ~]#yum -y install mysql-server
[15:30:51 root@mysql ~]#systemctl enable --now mysqld
[15:30:51 root@mysql ~]#mysql -e "create database wordpress"
[15:30:51 root@mysql ~]#mysql -e 'create user wordpress@"10.0.0.%" identified by "wordpress"'
[15:30:51 root@mysql ~]#mysql -e 'grant all on wordpress.* to wordpress@"10.0.0.%"'

2.5 部署wordpress

# 此前wordpress代码已经从developer-2推送到gitlab
这里需要先修改wordpress中的mysql配置, 然后再次推送到master分支, 并且打标签tag v1.1

[15:34:34 root@developer-2 ~]#cd wordpress/
[15:34:38 root@developer-2 ~/wordpress]#cp wp-config-sample.php wp-config.php
[15:38:07 root@developer-2 ~/wordpress]#vim wp-config.php 
...
...
define( 'DB_NAME', 'wordpress' );                                                                                                                                                   

/** MySQL数据库用户名 */
define( 'DB_USER', 'wordpress' );

/** MySQL数据库密码 */
define( 'DB_PASSWORD', 'wordpress' );

/** MySQL主机 */
define( 'DB_HOST', '10.0.0.83' );
...
...
[15:40:25 root@developer-2 ~/wordpress]#chown -R nginx.nginx ~/wordpress

# 推送到gitlab

[15:40:47 root@developer-2 ~/wordpress]#git add .
[15:42:23 root@developer-2 ~/wordpress]#git commit -m "添加数据库信息"
[15:42:44 root@developer-2 ~/wordpress]#git push origin master
Enumerating objects: 4, done.
Counting objects: 100% (4/4), done.
Compressing objects: 100% (3/3), done.
Writing objects: 100% (3/3), 1.65 KiB | 1.65 MiB/s, done.
Total 3 (delta 1), reused 0 (delta 0), pack-reused 0
To gitlab.abc.com:devops/wordpress.git
   e982fa1..9a39511  master -> master

[15:44:04 root@developer-2 ~/wordpress]#git tag -a 'v1.1' -m '添加数据库地址'
[15:44:13 root@developer-2 ~/wordpress]#git tag
v1.1
[15:44:15 root@developer-2 ~/wordpress]#git push origin v1.1
Enumerating objects: 1, done.
Counting objects: 100% (1/1), done.
Writing objects: 100% (1/1), 189 bytes | 189.00 KiB/s, done.
Total 1 (delta 0), reused 0 (delta 0), pack-reused 0
To gitlab.abc.com:devops/wordpress.git
 * [new tag]         v1.1 -> v1.1

图片.png

2.6 再次构建, 之后把jenkins目录下的代码复制到php服务器和nginx上

[15:48:37 root@jenkins /var/lib/jenkins/workspace/wordpress]#scp -r * 10.0.0.81:/code/wordpress
[15:48:37 root@jenkins /var/lib/jenkins/workspace/wordpress]#scp -r * 10.0.0.82:/code/wordpress
[15:51:04 root@jenkins /var/lib/jenkins/workspace/wordpress]#scp -r * 10.0.0.217:/data/project/wordpress

2.7 浏览器访问wordpress.abc.com

图片.png

# 此时, 后端php服务器即使宕机一个, 也不影响访问
# 此外, nginx本地也要有wordpress代码, 因为静态页面需要nginx来响应

3. 实现代码自动上线

# 配置jenkins免秘钥登录10.0.0.217
ssh-copy-id -i ~/.ssh/id_rsa.pub root@10.0.0.217

3.1 上线脚本

[16:17:50 root@jenkins /data/scripts]#vim wordpress.sh

#!/bin/bash
DATE=`date +%Y-%m-%d-%H-%M-%S`
php_server="10.0.0.81 10.0.0.82"

#代码在jenkins上打包路径, 并且有jenkins复制到php服务器该路径
sdir="/opt"
#代码在服务器上的部署路径
ddir="/code"
#1. 进入jenkins项目目录, 将代码打包
get_code(){

    cd ${WORKSPACE} && \
    tar czf ${sdir}/wordpress-${DATE}.tar.gz ./*

}

#2. 将内容通告scp拷贝到php集群

scp_php_server(){

for host in $php_server; do
    scp ${sdir}/wordpress-${DATE}.tar.gz root@$host:${sdir}
    ssh root@$host "mkdir -p ${ddir}/wordpress-${DATE} && \
                    tar xf ${sdir}/wordpress-${DATE}.tar.gz -C ${ddir}/wordpress-${DATE} && \
                    rm -rf ${ddir}/wordpress && \
                    ln -s ${ddir}/wordpress-${DATE} ${ddir}/wordpress"
done
}

deploy(){

    get_code
    scp_php_server

}
deploy

图片.png

3.2 执行构建

图片.png

3.3 访问网站

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3.4 实现项目代码升级发布

developer-2上修改代码, 在wordpress目录下创建jenkins/index.php, 模拟php代码更改

[19:15:37 root@developer-2 ~]#cd wordpress/
[19:15:39 root@developer-2 ~/wordpress]#ls
index.php    readme.html      wp-admin            wp-comments-post.php  wp-config-sample.php  wp-cron.php  wp-links-opml.php  wp-login.php  wp-settings.php  wp-trackback.php
license.txt  wp-activate.php  wp-blog-header.php  wp-config.php         wp-content            wp-includes  wp-load.php        wp-mail.php   wp-signup.php    xmlrpc.php
[19:15:42 root@developer-2 ~/wordpress]#mkdir jenkins
[19:15:45 root@developer-2 ~/wordpress]#vim jenkins/index.php
<?php
    echo "v1.2"
?>

推送到gitlab

[19:22:36 root@developer-2 ~/wordpress]#git remote -v
origin  http://gitlab.abc.com/devops/wordpress.git (fetch)
origin  http://gitlab.abc.com/devops/wordpress.git (push)
[19:22:39 root@developer-2 ~/wordpress]#git add .
[19:22:46 root@developer-2 ~/wordpress]#git commit -m '添加jenkins/index.php-v1.2'
[master aecf334] 添加jenkins/index.php-v1.2
 1 file changed, 3 insertions(+)
 create mode 100644 jenkins/index.php
[19:22:57 root@developer-2 ~/wordpress]#git push origin master
Username for 'http://gitlab.abc.com': developer-2
Password for 'http://developer-2@gitlab.abc.com': 
Enumerating objects: 5, done.
Counting objects: 100% (5/5), done.
Compressing objects: 100% (2/2), done.
Writing objects: 100% (4/4), 367 bytes | 367.00 KiB/s, done.
Total 4 (delta 1), reused 0 (delta 0), pack-reused 0
To http://gitlab.abc.com/devops/wordpress.git
   45ee43a..aecf334  master -> master

[19:23:40 root@developer-2 ~/wordpress]#git tag -a 'v1.2' -m 'jenkins/index.php-v1.2'
[19:23:58 root@developer-2 ~/wordpress]#git push origin v1.2
Username for 'http://gitlab.abc.com': developer-2
Password for 'http://developer-2@gitlab.abc.com': 
Enumerating objects: 1, done.
Counting objects: 100% (1/1), done.
Writing objects: 100% (1/1), 172 bytes | 172.00 KiB/s, done.
Total 1 (delta 0), reused 0 (delta 0), pack-reused 0
To http://gitlab.abc.com/devops/wordpress.git
 * [new tag]         v1.2 -> v1.2

Jenkins拉取master代码, 执行构建

[19:26:27 root@developer-1 /code/wordpress]#ll jenkins/
total 4
-rw-r--r-- 1 root root 25 Jun  1 19:25 index.php


[19:26:37 root@developer-2 /code/wordpress]#ll jenkins/
total 4
-rw-r--r-- 1 root root 25 Jun  1 19:25 index.php

访问测试

图片.png

3.5 配置基于tag发布的参数化构建

图片.png

修改构建脚本

[19:39:46 root@jenkins /var/lib/jenkins/workspace]#vim /data/scripts/wordpress.sh 

#!/bin/bash
DATE=`date +%Y-%m-%d-%H-%M-%S`
php_server="10.0.0.81 10.0.0.82"

#代码在jenkins上打包路径, 并且有jenkins复制到php服务器该路径
sdir="/opt"
#代码在服务器上的部署路径
ddir="/code"
#1. 进入jenkins项目目录, 将代码打包
get_code(){

    cd ${WORKSPACE} && \
    tar czf ${sdir}/wordpress-${DATE}-${git_version}.tar.gz ./*

}

#2. 将内容通告scp拷贝到php集群

scp_php_server(){

for host in $php_server; do
    scp ${sdir}/wordpress-${DATE}-${git_version}.tar.gz root@$host:${sdir}
    ssh root@$host "mkdir -p ${ddir}/wordpress-${DATE}-${git_version} && \
                    tar xf ${sdir}/wordpress-${DATE}-${git_version}.tar.gz -C ${ddir}/wordpress-${DATE}-${git_version} && \
                    rm -rf ${ddir}/wordpress && \
                    ln -s ${ddir}/wordpress-${DATE}-${git_version} ${ddir}/wordpress"
done
}
                                                                                                                                                                                    
deploy(){

    get_code
    scp_php_server

}
deploy

执行构建, 可以看到一共有两个Gitlab上的tag版本

图片.png

多提交几个版本, 测试升级和回滚

# v1.3
[19:45:14 root@developer-2 ~/wordpress/jenkins]#vim index.php 

<?php
    echo "v1.3"                                                                                                                                                                     
?>

[19:45:24 root@developer-2 ~/wordpress/jenkins]#git add index.php 
[19:45:27 root@developer-2 ~/wordpress/jenkins]#git commit -m '提交v1.3'
[master 1c396e6] 提交v1.3
 1 file changed, 1 insertion(+), 1 deletion(-)
[19:45:36 root@developer-2 ~/wordpress/jenkins]#git push origin master
Username for 'http://gitlab.abc.com': developer-2
Password for 'http://developer-2@gitlab.abc.com': 
Enumerating objects: 7, done.
Counting objects: 100% (7/7), done.
Compressing objects: 100% (2/2), done.
Writing objects: 100% (4/4), 336 bytes | 112.00 KiB/s, done.
Total 4 (delta 1), reused 0 (delta 0), pack-reused 0
To http://gitlab.abc.com/devops/wordpress.git
   aecf334..1c396e6  master -> master
[19:45:49 root@developer-2 ~/wordpress/jenkins]#git tag -a 'v1.3' -m '提交v1.3'
[19:46:02 root@developer-2 ~/wordpress/jenkins]#git push origin v1.3
Username for 'http://gitlab.abc.com': developer-2
Password for 'http://developer-2@gitlab.abc.com': 
Enumerating objects: 1, done.
Counting objects: 100% (1/1), done.
Writing objects: 100% (1/1), 173 bytes | 173.00 KiB/s, done.
Total 1 (delta 0), reused 0 (delta 0), pack-reused 0
To http://gitlab.abc.com/devops/wordpress.git
 * [new tag]         v1.3 -> v1.3


# v1.4

[19:45:40 root@developer-2 ~/wordpress/jenkins]#vim index.php 

<?php
    echo "v1.4"                                                                                                                                                                     
?>

[19:46:51 root@developer-2 ~/wordpress/jenkins]#git add index.php 
[19:47:15 root@developer-2 ~/wordpress/jenkins]#git commit -m '提交v1.4'
[master 0e28f98] 提交v1.4
 1 file changed, 1 insertion(+), 1 deletion(-)
[19:47:20 root@developer-2 ~/wordpress/jenkins]#git push origin master
Username for 'http://gitlab.abc.com': developer-2
Password for 'http://developer-2@gitlab.abc.com': 
Enumerating objects: 7, done.
Counting objects: 100% (7/7), done.
Compressing objects: 100% (2/2), done.
Writing objects: 100% (4/4), 337 bytes | 337.00 KiB/s, done.
Total 4 (delta 1), reused 0 (delta 0), pack-reused 0
To http://gitlab.abc.com/devops/wordpress.git
   1c396e6..0e28f98  master -> master
[19:47:30 root@developer-2 ~/wordpress/jenkins]#git tag -a 'v1.4' -m '提交v1.4'
[19:47:39 root@developer-2 ~/wordpress/jenkins]#git push origin v1.4
Username for 'http://gitlab.abc.com': developer-2
Password for 'http://developer-2@gitlab.abc.com': 
Enumerating objects: 1, done.
Counting objects: 100% (1/1), done.
Writing objects: 100% (1/1), 172 bytes | 172.00 KiB/s, done.
Total 1 (delta 0), reused 0 (delta 0), pack-reused 0
To http://gitlab.abc.com/devops/wordpress.git
 * [new tag]         v1.4 -> v1.4

# v1.5

[19:48:16 root@developer-2 ~/wordpress/jenkins]#vim index.php 

<?php    echo "v1.5"                                                                                                                                                                     
?>

[19:48:38 root@developer-2 ~/wordpress/jenkins]#git add index.php 
[19:48:45 root@developer-2 ~/wordpress/jenkins]#git commit -m '提交v1.5'
[master 5e57f67] 提交v1.5
 1 file changed, 1 insertion(+), 1 deletion(-)
[19:48:51 root@developer-2 ~/wordpress/jenkins]#git push origin master
Username for 'http://gitlab.abc.com': developer-2
Password for 'http://developer-2@gitlab.abc.com': 
Enumerating objects: 7, done.
Counting objects: 100% (7/7), done.
Compressing objects: 100% (2/2), done.
Writing objects: 100% (4/4), 336 bytes | 336.00 KiB/s, done.
Total 4 (delta 1), reused 0 (delta 0), pack-reused 0
To http://gitlab.abc.com/devops/wordpress.git
   0e28f98..5e57f67  master -> master
[19:49:01 root@developer-2 ~/wordpress/jenkins]#git tag -a 'v1.5' -m '提交v1.5'
[19:49:14 root@developer-2 ~/wordpress/jenkins]#git push origin v1.5
Username for 'http://gitlab.abc.com': developer-2
Password for 'http://developer-2@gitlab.abc.com': 
Enumerating objects: 1, done.
Counting objects: 100% (1/1), done.
Writing objects: 100% (1/1), 172 bytes | 172.00 KiB/s, done.
Total 1 (delta 0), reused 0 (delta 0), pack-reused 0
To http://gitlab.abc.com/devops/wordpress.git
 * [new tag]         v1.5 -> v1.5

测试升级和回滚

图片.png

发布v1.5

图片.png

回退到v1.2

图片.png

3.6 实现选择部署还是回滚

修改jenkins, 添加选项参数

图片.png

修改构建脚本

[19:58:59 root@jenkins /var/lib/jenkins/workspace]#vim /data/scripts/wordpress.sh 

#!/bin/bash
DATE=`date +%Y-%m-%d-%H-%M-%S`
php_server="10.0.0.81 10.0.0.82"

#代码在jenkins上打包路径, 并且有jenkins复制到php服务器该路径
sdir="/opt"
#代码在服务器上的部署路径
ddir="/code"
#1. 进入jenkins项目目录, 将代码打包
get_code(){

    cd ${WORKSPACE} && \
    tar czf ${sdir}/wordpress-${DATE}-${git_version}.tar.gz ./*

}

#2. 将内容通告scp拷贝到php集群

scp_php_server(){

for host in $php_server; do
    scp ${sdir}/wordpress-${DATE}-${git_version}.tar.gz root@$host:${sdir}
    ssh root@$host "mkdir -p ${ddir}/wordpress-${DATE}-${git_version} && \
                    tar xf ${sdir}/wordpress-${DATE}-${git_version}.tar.gz -C ${ddir}/wordpress-${DATE}-${git_version} && \
                    rm -rf ${ddir}/wordpress && \
                    ln -s ${ddir}/wordpress-${DATE}-${git_version} ${ddir}/wordpress"
done
}


deploy(){
        get_code
        scp_php_server

}
rollback(){

        echo "rollback"

}

if [ ${deploy_env} == "deploy" ]; then
    deploy
elif [ ${deploy_env} == "rollback" ]; then 
    rollback 
fi

部署v1.5

图片.png

回退到v1.3

因为构建脚本还没有添加回退功能, 所以只能看到拉取了v1.3版本

增加回退功能, 先把/code目录下多余的版本删除

l[20:06:01 root@developer-2 /code]#ll
total 8
lrwxrwxrwx 1 root root   40 Jun  1 20:02 wordpress -> /code/wordpress-2021-06-01-20-02-01-v1.5
drwxr-xr-x 6 root root 4096 Jun  1 19:53 wordpress-2021-06-01-19-53-36-v1.2
drwxr-xr-x 6 root root 4096 Jun  1 20:02 wordpress-2021-06-01-20-02-01-v1.5

[20:06:27 root@developer-1 /code]#ll
total 8
lrwxrwxrwx 1 root root   40 Jun  1 20:02 wordpress -> /code/wordpress-2021-06-01-20-02-01-v1.5
drwxr-xr-x 6 root root 4096 Jun  1 19:53 wordpress-2021-06-01-19-53-36-v1.2
drwxr-xr-x 6 root root 4096 Jun  1 20:02 wordpress-2021-06-01-20-02-01-v1.5

修改构建脚本, 增加回退功能

[20:09:11 root@jenkins /var/lib/jenkins/workspace]#vim /data/scripts/wordpress.sh 

#!/bin/bash
DATE=`date +%Y-%m-%d-%H-%M-%S`
php_server="10.0.0.81 10.0.0.82"

#代码在jenkins上打包路径, 并且有jenkins复制到php服务器该路径
sdir="/opt"
#代码在服务器上的部署路径
ddir="/code"
#1. 进入jenkins项目目录, 将代码打包
get_code(){

    cd ${WORKSPACE} && \
    tar czf ${sdir}/wordpress-${DATE}-${git_version}.tar.gz ./*

}

#2. 将内容通告scp拷贝到php集群

scp_php_server(){

for host in $php_server; do
    scp ${sdir}/wordpress-${DATE}-${git_version}.tar.gz root@$host:${sdir}
    ssh root@$host "mkdir -p ${ddir}/wordpress-${DATE}-${git_version} && \
                    tar xf ${sdir}/wordpress-${DATE}-${git_version}.tar.gz -C ${ddir}/wordpress-${DATE}-${git_version} && \
                    rm -rf ${ddir}/wordpress && \
                    ln -s ${ddir}/wordpress-${DATE}-${git_version} ${ddir}/wordpress"
done
}


deploy(){
        get_code
        scp_php_server

}
rollback(){

rollback_file=`ssh root@10.0.0.81 "find /code/ -maxdepth 1 -type d -name "wordpress-*-${git_version}""`

for host in $php_server; do
    ssh root@$host "rm -rf ${ddir}/wordpress && \
                    ln -s ${rollback_file} ${ddir}/wordpress"
done                                                                                                                                                                                


}
if [ ${deploy_env} == "deploy" ]; then
    deploy
elif [ ${deploy_env} == "rollback" ]; then 
    rollback 
fi

测试部署和回退

部署1.3

图片.png

回退到1.2

图片.png

解决重复构建

[20:11:39 root@jenkins /var/lib/jenkins/workspace]#vim /data/scripts/wordpress.sh 

#!/bin/bash
DATE=`date +%Y-%m-%d-%H-%M-%S`
php_server="10.0.0.81 10.0.0.82"

#代码在jenkins上打包路径, 并且有jenkins复制到php服务器该路径
sdir="/opt"
#代码在服务器上的部署路径
ddir="/code"
#1. 进入jenkins项目目录, 将代码打包
get_code(){

    cd ${WORKSPACE} && \
    tar czf ${sdir}/wordpress-${DATE}-${git_version}.tar.gz ./*

}

#2. 将内容通告scp拷贝到php集群

scp_php_server(){

for host in $php_server; do
    scp ${sdir}/wordpress-${DATE}-${git_version}.tar.gz root@$host:${sdir}
    ssh root@$host "mkdir -p ${ddir}/wordpress-${DATE}-${git_version} && \
                    tar xf ${sdir}/wordpress-${DATE}-${git_version}.tar.gz -C ${ddir}/wordpress-${DATE}-${git_version} && \
                    rm -rf ${ddir}/wordpress && \
                    ln -s ${ddir}/wordpress-${DATE}-${git_version} ${ddir}/wordpress"
done
}


deploy(){
        get_code
        scp_php_server

}
rollback(){

rollback_file=`ssh root@10.0.0.81 "find /code/ -maxdepth 1 -type d -name "wordpress-*-${git_version}""`

for host in $php_server; do
    ssh root@$host "rm -rf ${ddir}/wordpress && \
                    ln -s ${rollback_file} ${ddir}/wordpress"
done                                                                                                                                                                                


}
if [ ${deploy_env} == "deploy" ]; then
    if [ ${GIT_COMMIT} == ${GIT_PREVIOUS_SUCCESSFUL_COMMIT} ]; then
        echo "已经部署过该版本, ${git_version}"
        exit 1
    else
        deploy
    fi
    
    
elif [ ${deploy_env} == "rollback" ]; then 
    rollback 
fi

测试部署v1.2

由于1.2版本此前部署过, 因此会提示已经部署, 直接退出构建

图片.png

接下来要添加部署或者回退后重启php-fpm, 以及将新的代码也复制给nginx

#!/bin/bash                                                                                                                                                                         
DATE=`date +%Y-%m-%d-%H-%M-%S`
php_server="10.0.0.81 10.0.0.82"

#代码在jenkins上打包路径, 并且有jenkins复制到php服务器该路径
sdir="/opt"
#代码在服务器上的部署路径
ddir="/code"
#1. 进入jenkins项目目录, 将代码打包
get_code(){

    cd ${WORKSPACE} && \
    tar czf ${sdir}/wordpress-${DATE}-${git_version}.tar.gz ./*

}

#2. 将内容通告scp拷贝到php集群

scp_php_server(){

for host in $php_server; do
    scp ${sdir}/wordpress-${DATE}-${git_version}.tar.gz root@$host:${sdir}
    ssh root@$host "mkdir -p ${ddir}/wordpress-${DATE}-${git_version} && \
                    tar xf ${sdir}/wordpress-${DATE}-${git_version}.tar.gz -C ${ddir}/wordpress-${DATE}-${git_version} && \
                    rm -rf ${ddir}/wordpress && \
                    ln -s ${ddir}/wordpress-${DATE}-${git_version} ${ddir}/wordpress && \
                    systemctl restart php-fpm && echo 'php重启成功'"
done

scp ${sdir}/wordpress-${DATE}-${git_version}.tar.gz root@10.0.0.217:${sdir}
ssh root@10.0.0.217 "mkdir -p /data/project/wordpress-${DATE}-${git_version} && \
                     tar xf ${sdir}/wordpress-${DATE}-${git_version}.tar.gz -C /data/project/wordpress-${DATE}-${git_version} && \
                     rm -rf /data/project/wordpress && \
                     ln -s /data/project/wordpress-${DATE}-${git_version} /data/project/wordpress"
}


deploy(){
        get_code
        scp_php_server

}

rollback(){

rollback_file=`ssh root@10.0.0.81 "find /code/ -maxdepth 1 -type d -name "wordpress-*-${git_version}""`
rollbackfile_for_nginx=`basename ${rollback_file}`
for host in $php_server; do
    ssh root@$host "rm -rf ${ddir}/wordpress && \
                    ln -s ${rollback_file} ${ddir}/wordpress"
done                                                                                                                                                                                

ssh root@10.0.0.217 "rm -rf /data/project/wordpress && \
                ln -s /data/project/${rollback_file_for_nginx} /data/project/wordpress"


}
if [ ${deploy_env} == "deploy" ]; then
    if [ ${GIT_COMMIT} == ${GIT_PREVIOUS_SUCCESSFUL_COMMIT} ]; then
        echo "已经部署过该版本, ${git_version}"
        exit 1
    else
        deploy
    fi
    
    
elif [ ${deploy_env} == "rollback" ]; then 
    rollback 
fi

实际工作中, 开发会把代码推送到gitlab, 无需运维人员修改代码, 只需要根据不同项目以及业务需求, 完成构建和发布即可

链接：https://www.jianshu.com/p/d7d48882def1

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原文地址：https://www.cnblogs.com/zhangtianle/p/16401173.html