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Systemd 简单使用

 3 years ago
source link: https://windard.com/blog/2018/03/13/Systemd
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Systemd 简单使用

2018-03-13

Systemd 是 Linux 系统工具，用来启动守护进程，已成为大多数发行版的标准配置。可以通过systemctl --version 命令来查看使用的版本

之前有人问我 supervisor 和 pm2 相比，哪个更好？这两者都是进程管理和进程监控的，为什么不试一下 Linux 下自带的好用的 Systemd 呢 …

centOS 上所有 services 在 /usr/lib/systemd/system/ , Ubuntu 上所有 services 在 /lib/systemd/system/ 或者 /etc/systemd/system/

  • 查看所有服务 systemctl --system 或者 systemctl

  • 重载所有服务 systemctl daemon-reload

  • 启动服务 systemctl start docker 或者 systemctl start docker.service
  • 停止服务 systemctl stop docker
  • 重启服务 systemctl restart docker
  • 重载服务 systemctl reload docker
  • 杀死服务 systemctl kill docker

  • 查看服务 systemctl show docker

  • 开机启动 systemctl enable docker
  • 取消开机启动 systemctl disable docker
  • 检查是否开机启动 systemctl is-enabled docker

创建一个 services

以进程管理工具 supervisor 为例 /usr/lib/systemd/system/supervisord.service

[Unit]
Description=Supervisor daemon

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

[Install]
WantedBy=multi-user.target

然后再 systemctl daemon-reload 即可

本文固定链接：https://windard.com/blog/2018/03/13/Systemd
原创文章,转载请注明出处：Systemd 简单使用 By Windard


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