Centos7设置lnmp服务自启动
通用设置
其实centos7设置服务自启动大都是一样的套路：
1. 新增/lib/systemd/system/service_name.service文件，在文件里设置[Unit],[Service],[Intall]的内容，保存；
2. 使用systemctl daemon-reload命令重载；
3. 使用systemctl enable service_name命令设置开机自启动。
systemctl的操作命令
systemctl status nginx # 查看是否启动
systemctl start nginx # 启动
systemctl stop nginx # 停止
systemctl restart nginx # 重启
systemctl is-enabled nginx # 查看是否自启动
systemctl enable nginx # 设置自启动
systemctl disable nginx # 取消自启动
nginx.service、php-fpm.servicemysql需要安装documentation、mysqld.service文件设置
Nginx设置流程：inx/resources/wiki/start/topics/examples/systemd/
/lib/systemd/system/nginx.service
[Unit]
Description=The NGINX HTTP and reverse proxy server
After=syslog.target network.target remote-fs.target nss-lookup.target
[Service]
Type=forking
PIDFile=/usr/local/nginx/logs/nginx.pid
ExecStartPre=/usr/local/nginx/sbin/nginx -t
ExecStart=/usr/local/nginx/sbin/nginx
ExecReload=/bin/kill -s HUP $MAINPID
ExecStop=/bin/kill -s QUIT $MAINPID
PrivateTmp=true
[Install]
WantedBy=multi-user.target
/usr/lib/systemd/system/php-fpm.service
[Unit]
Description=The PHP FastCGI Process Manager
After=syslog.target network.target
[Service]
Type=simple
PIDFile=/run/php-fpm.pid
ExecStart=/usr/local/php/sbin/php-fpm --nodaemonize --fpm-config /usr/local/php/f
ExecReload=/bin/kill -USR2 $MAINPID
ExecStop=/bin/kill -SIGINT $MAINPID
[Install]
WantedBy=multi-user.target
/usr/lib/systemd/system/mysqld.service
[Unit]
Description=MySQL Server
Documentation=man:mysqld(8)
Documentation=sql/doc/refman/en/using-systemd.html
After=network.target
After=syslog.target
[Install]
WantedBy=multi-user.target
[Service]
User=mysql
Group=mysql
Type=forking
PIDFile=/var/lib/mysql/localhost.localdomain.pid
# Disable service start and stop timeout logic of systemd for mysqld service.
TimeoutSec=0
# Execute pre and post scripts as root
PermissionsStartOnly=true
# Start main service
ExecStart=/usr/local/mysql/bin/mysqld --daemonize --pid-file=/var/lib/mysql/localhost.localdomain.pid $MYSQLD_OPTS
# Sets open_files_limit
LimitNOFILE = 5000
Restart=on-failure
RestartPreventExitStatus=1
PrivateTmp=false

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