[yocto] Best practice dynamic service file

[ChenQi]

On 03/05/2019 05:46 AM, Jonas Andersson wrote:
> Hi,
>
> I have an systemd recipe to start an application as a service, i have 
> included an service file.
> Now I am looking for an solution to be able to set settings in the 
> service file from Yocto variables, i have found recipes that use 
> python to build files during build.
>
> What is best practice for this?
>
> /Jonas
>
>

Use placeholders like VAR_TO_SUBSTITUDE, and then use 'sed' command to 
replace it in do_install.
e.g.
sed -i -e 's/VAR_TO_SUBSTITUDE/${VAR_IN_RECIPE}/g' path/to/my.service

Best Regards,
Chen Qi
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