# 一、nginx
```bash
vi /lib/systemd/system/nginx.service
```

```toml
[Unit]
Description=The NGINX HTTP and reverse proxy server
#After=syslog.target network.target remote-fs.target nss-lookup.target
After=syslog.target network.target

[Service]
Type=forking
PIDFile=/data/nginx/logs/nginx.pid
ExecStartPre=/data/nginx/sbin/nginx -t
ExecStart=/data/nginx/sbin/nginx
ExecReload=/data/nginx/sbin/nginx -s reload
ExecStop=/bin/kill -s QUIT $MAINPID
PrivateTmp=true

[Install]
WantedBy=multi-user.target
```

# 二、dockerd
# 三、mysqld
# 四、haproxy
```bash
cd /data/install/haproxy-1.8.13/contrib/systemd/
make PREFIX=/usr/local/haproxy
sudo cp haproxy.service /lib/systemd/system/haproxy.service
```
# 五、keepalived
# 六、命令
```bash
systemctl daemon-reload
systemctl enable nginx.service
systemctl start nginx.service
systemctl stop nginx.service
systemctl reload nginx.service
systemctl restart nginx.service
systemctl status nginx.service
```
# 七、参考
* [systemd (简体中文)](https://wiki.archlinux.org/index.php/systemd_(%E7%AE%80%E4%BD%93%E4%B8%AD%E6%96%87))
* [NGINX systemd service file](https://www.nginx.com/resources/wiki/start/topics/examples/systemd/)
* [Control Docker with systemd](https://docs.docker.com/config/daemon/systemd/) [systemd](https://github.com/moby/moby/tree/master/contrib/init/systemd)
* [Managing MySQL Server with systemd](https://dev.mysql.com/doc/refman/8.0/en/using-systemd.html)
* [编译MySQL 5.7加入systemd支持](https://blog.frognew.com/2017/03/compile-mysql-5.7-with-systemd-support.html)
* [MariaDB](https://mariadb.com/kb/en/library/systemd/)
* [PostgreSQL 11](https://www.postgresql.org/docs/current/server-start.html)
* [在systemd单元中使用环境变量](https://coreos.com/os/docs/latest/using-environment-variables-in-systemd-units.html)