systemd 使用rc.local 说明

Posted 2020-12-19 rongfengliang

rc.local 是一个早期的产物用来进行启动配置的管理（还可以进行开机自启动服务的管理）实际上systemd 也是可以直接使用
rc.local ,使用上很简单，就是添加执行权限，同时添加自己的shell 代码就可以了

一些说明

实际上 rc.local 添加了执行权限之后，使用的就是rc-local 的一个systemd 的服务

 

#  This file is part of systemd.

#

#  systemd is free software; you can redistribute it and/or modify it

#  under the terms of the GNU Lesser General Public License as published by

#  the Free Software Foundation; either version 2.1 of the License, or

#  (at your option) any later version.

?

# This unit gets pulled automatically into multi-user.target by

# systemd-rc-local-generator if /etc/rc.d/rc.local is executable.

[Unit]

Description=/etc/rc.d/rc.local Compatibility

ConditionFileIsExecutable=/etc/rc.d/rc.local

After=network.target

?

[Service]

Type=forking

ExecStart=/etc/rc.d/rc.local start

TimeoutSec=0

RemainAfterExit=yes

自定义配置

基于systemd启动的配置

# /etc/systemd/system/my-startup.service

[Service]

Type=oneshot

RemainAfterExit=yes

ExecStart=/usr/local/libexec/my-startup-script

?

[Install]

WantedBy=multi-user.target

参考资料

https://unix.stackexchange.com/questions/471824/what-is-the-correct-substitute-for-rc-local-in-systemd-instead-of-re-creating-rc
https://www.redhat.com/sysadmin/replacing-rclocal-systemd