How do i change property values for a systemd service?
pangolinsos last edited by
set-property option of systemctl.
set-property NAME ASSIGNMENT... Set the specified unit properties at runtime where this is supported. This allows changing configuration parameter properties such as resource control settings at runtime. Not all properties may be changed at runtime, but many resource control settings (primarily those in systemd.resource-control(5)) may. The changes are applied instantly, and stored on disk for future boots, unless --runtime is passed, in which case the settings only apply until the next reboot. The syntax of the property assignment follows closely the syntax of assignments in unit files. Example: systemctl set-property foobar.service CPUShares=777 Note that this command allows changing multiple properties at the same time, which is preferable over setting them individually. Like unit file configuration settings, assigning the empty list to list parameters will reset the list.
Note: It does mention no all properties can be changed at runtime.
To set the CPUShares of the httpd service. Note, This is just random figure to demonstrate the command. The change will be made permanently to the unit file; to make it a temporary change add the
$ sudo systemctl set-property httpd.service CPUShares=1000
Verify the setting.
$ systemctl show httpd.service -p CPUShares CPUShares=1000
Note: When working with unit files manually, there are some other steps involved these are not explained as part of this article.
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