Including file in /etc/dhcpcd.conf

NotionCommotion · 04-24-2017, 07:38 PM

I would like to include a file in my /etc/dhcpcd.conf which will include the following, and another application will edit this file and cause the machine to reboot. Note that this is not really a server, but a raspberry pi running a different application which has a small embedded webserver to change configuration settings. I've tried include "/path/to/my/file.conf"; but upon rebooting, the Pi doesn't have a static IP so uses a dynamic one. But if I include these actual lines in my /etc/dhcpcd.conf file instead of the include statement, it works fine. I suppose I can have my application directly edit /etc/dhcpcd.conf, but thought it would be better with the include file. What should I be doing? Thanks

Code:

interface eth0
static ip_address=10.120.11.30/24
static routers=10.120.11.1
static domain_name_servers=10.120.11.1

AwesomeMachine · 04-25-2017, 12:20 AM

What are you actually trying to do. It sounds like you're making things more complex than they need to be. If you require a different configuration, kill the dhcpcd process and restart it with the configuration you want.

Then, instead of editing a file and rebooting you can keep the device up and just reconfigure by calling a script that kills the process and starts it again with command line parameters suitable to the new interface configuration.

You might have to run more than one command in the script, but rebooting is such a harsh way to deal with the problem.

NotionCommotion · 04-25-2017, 12:45 AM

Thanks AwesomeMachine,

Yeah, rebooting is a bit primitive, but I want the changes to be persistent and as such need to edit the physical file.

EDIT. Changed to restarting network per your recommendations, but still curious whether I put an "include file" in dhcpcd.conf.