CentOS 7设置开机启动服务，添加自定义系统服务

CentOS 7设置开机启动服务

• 建立服务文件
• 保存目录
• 设置开机自启动
• 其他命令

1.建立服务文件

文件路径

vim /usr/lib/systemd/system/nginx.service

服务文件内容

1.nginx.service

[Unit]
Description=nginx - high performance web server
After=network.target remote-fs.target nss-lookup.target

[Service]
Type=forking
ExecStart=/usr/local/nginx/sbin/nginx -c /usr/local/nginx/conf/nginx.conf
ExecReload=/usr/local/nginx/sbin/nginx -s reload
ExecStop=/usr/local/nginx/sbin/nginx -s stop

[Install]
WantedBy=multi-user.target

2.mysql.service

[Unit]
Description=mysql
After=network.target remote-fs.target nss-lookup.target

[Service]
Type=forking
ExecStart=/usr/local/mysql/support-files/mysql.server start
#ExecReload=/usr/local/mysql/support-files/mysql.server restart
#ExecStop=/usr/local/mysql/support-files/mysql.server stop
#PrivateTmp=true

[Install]
WantedBy=multi-user.target

3.php-fpm.service

[Unit]
Description=php
After=network.target remote-fs.target nss-lookup.target

[Service]
Type=forking
ExecStart=/usr/local/php/sbin/php-fpm

[Install]
WantedBy=multi-user.target

3.memcached.service

[Unit]
Description=Memcached
Before=httpd.service
After=network.target

[Service]
Type=forking
#EnvironmentFile=-/usr/local/memcached/mconfig
ExecStart=/usr/local/memcached/bin/memcached -d -u root -p 11211 -m 128 -c 1000 -P '/usr/local/memcached/memcached.pid'
ExecStop=/bin/kill -s QUIT

[Install]
WantedBy=multi-user.target

4.redis.service

[Unit]
Description=Redis
After=network.target remote-fs.target nss-lookup.target

[Service]
Type=forking
ExecStart=/usr/local/bin/redis-server /etc/redis.conf
ExecStop=kill -INT `cat /tmp/redis.pid`
User=www
Group=www

[Install]
WantedBy=multi-user.target

5.supervisord.service

[Unit]
Description=Process Monitoring and Control Daemon
After=rc-local.service

[Service]
Type=forking
ExecStart=/usr/bin/supervisord -c /etc/supervisord.conf
SysVStartPriority=99

[Install]
WantedBy=multi-user.target

文件内容解释

[Unit]:服务的说明
Description:描述服务
After:描述服务类别

[Service]服务运行参数的设置
Type=forking是后台运行的形式
ExecStart为服务的具体运行命令
ExecReload为重启命令
ExecStop为停止命令
PrivateTmp=True表示给服务分配独立的临时空间
注意：启动、重启、停止命令全部要求使用绝对路径

[Install]服务安装的相关设置，可设置为多用户

2.保存目录

以754的权限保存在目录：

/usr/lib/systemd/system 

3.设置开机自启动

任意目录下执行

systemctl enable nginx.service 

4.其他命令

启动nginx服务

systemctl start nginx.service

设置开机自启动

systemctl enable nginx.service

停止开机自启动

systemctl disable nginx.service

查看服务当前状态

systemctl status nginx.service

重新启动服务

systemctl restart nginx.service

查看所有已启动的服务

systemctl list-units --type=service