CentOS 7 下Jenkins安装部署教程

#添加Yum源
sudo wget -O /etc/yum.repos.d/jenkins.repo https://pkg.jenkins.io/redhat-stable/jenkins.repo

#导入密钥
sudo rpm --import https://pkg.jenkins.io/redhat-stable/jenkins.io.key

sudo yum install -y jenkins

sudo firewall-cmd --add-port=8080/tcp --permanent
sudo firewall-cmd --reload

#修改jenkins启动脚本
sudo vi /etc/init.d/jenkins

#修改candidates增加java可选路径：/usr/java/jdk1.8.0_181/bin/java
candidates="
/etc/alternatives/java
/usr/lib/jvm/java-1.8.0/bin/java
/usr/lib/jvm/jre-1.8.0/bin/java
/usr/lib/jvm/java-1.7.0/bin/java
/usr/lib/jvm/jre-1.7.0/bin/java
/usr/bin/java
/usr/java/jdk1.8.0_181/bin/java
"

#重载服务（由于前面修改了Jenkins启动脚本）
sudo systemctl daemon-reload

#启动Jenkins服务
sudo systemctl start jenkins

#将Jenkins服务设置为开机启动
#由于Jenkins不是Native Service，所以需要用chkconfig命令而不是systemctl命令
sudo /sbin/chkconfig jenkins on

#新增Jenkins专用Nginx配置文件
sudo vi /etc/nginx/conf.d/jenkins.conf

#输入以下内容并保存
server {
    listen       80;        #监听80端口
    server_name  jenkins.ken.io; #监听的域名
    access_log  /var/log/nginx/jenkins.access.log main;
    error_log  /var/log/nginx/jenkins.error.log error;

    location / {            #转发或处理
        proxy_pass http://127.0.0.1:8080; 
    }
    error_page   500 502 503 504  /50x.html;#错误页
    location = /50x.html {
        root   /usr/share/nginx/html;
    }
}

sudo nginx -s reload

#查看错误信息
/var/log/nginx/jenkins.error.log

#错误信息示例
connect() to 127.0.0.1:8001 failed (13: Permission denied) while connecting to upstream, client: 127.0.0.1

#关闭SELinux： 
sed -i '/SELINUX/s/enforcing/disabled/' /etc/selinux/config 
#重启：
reboot

cat /var/lib/jenkins/secrets/initialAdminPassword