CentOS7下配置Supervisor自启动的两种方法

很多网友留言问如何配置Supervisor 自启动,现将如何在CentOS7下配置Supervisor自启动的两种方法整理如下:

一、方法一

直接将启动命令加入到/etc/rc.d/rc.local中(简单但不推荐)

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vi /etc/rc.d/rc.local

在现有的内容后面加入supervisor的启动命令
supervisord -c /etc/supervisord.conf
/etc/rc.d/rc.local
注意:一定要执行 chmod +x /etc/rc.d/rc.local

chmod +x /etc/rc.d/rc.local

给文件加入可执行权限
根据官方的提示,该方式是不被建议的,强烈建议创建自己的systemd services或udev规则来启动自已的应用,也就是方法二。

二、方法二

通过创建systemd services来实现自启动 (推荐)
进入到/usr/lib/systemd/system/目录

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[root@localhost ~]# cd /usr/lib/systemd/system/

找到supervisord及supervisorctl命令的路径

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[root@localhost system]# which supervisord
/usr/local/bin/supervisord
[root@localhost system]# which supervisorctl
/usr/local/bin/supervisorctl

创建文件supervisord.service

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vi supervisord.service

复制以下代码。注意:supervisord及supervisorctl命令的路径根据实际情况进行修改

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#supervisord.service

[Unit]
Description=Supervisor daemon

[Service]
Type=forking
ExecStart=/usr/local/bin/supervisord -c /etc/supervisord.conf
ExecStop=/usr/local/bin/supervisorctl shutdown
ExecReload=/usr/local/bin/supervisorctl reload
KillMode=process
Restart=on-failure
RestartSec=42s

[Install]
WantedBy=multi-user.target

启用服务

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[root@localhost system]# systemctl enable supervisord
Created symlink from /etc/systemd/system/multi-user.target.wants/supervisord.service to /usr/lib/systemd/system/supervisord.service

启动服务

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[root@localhost ~]# systemctl start supervisord

查看服务状态

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[root@localhost ~]# systemctl status supervisord
● supervisord.service - Supervisor daemon
Loaded: loaded (/usr/lib/systemd/system/supervisord.service; enabled; vendor preset: disabled)
Active: active (running) since Thu 2021-11-11 11:11:36 CST; 12s ago
Process: 3822 ExecStart=/usr/local/bin/supervisord -c /etc/supervisord.conf (code=exited, status=0/SUCCESS)
Main PID: 3850 (supervisord)
CGroup: /system.slice/supervisord.service
├─3850 /usr/local/bin/python3.8 /usr/local/bin/supervisord -c /etc/supervisord.conf
├─3916 uwsgi --ini /home/flask_web/uwsgi.ini
├─3918 uwsgi --ini /home/flask_web/uwsgi.ini
└─3919 uwsgi --ini /home/flask_web/uwsgi.ini

验证一下是否为开机启动

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[root@localhost system]# systemctl is-enabled supervisord
enabled

reboot重启服务器后,可以发现supervisor随服务器启动后自动启动了。

至此,本文介绍了CentOS7下配置Supervisor自启动的两种方法,推荐使用第二中方式。

作者博客:http://xiejava.ishareread.com/

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