Set up DHCP failed when setting static ip by cloud-init

[conghuayu]

Prerequisites

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• I am running the latest version
• I checked the documentation and found no answer
• I checked to make sure that this issue has not already been filed

Issue Details

• Version of AdGuard Home server:
  • v0.106.3
• How did you install AdGuard Home:
  • install.sh (with root privilege)

AdGuardHome -v --version output:
https://pastebin.ubuntu.com/p/fwZqBztMY5/

Expected Behavior

set up DHCP server

Actual Behavior

return an errbox "Error: control/dhcp/set_config | enabling dhcp: setting static ip: open /etc/dhcpcd.conf: no such file or directory | 500"

Screenshots

config:

err box:

Details

I use Proxmox VE as virtual environment and run AGH on a Debian 10.9.0 with 2 cores and 1GB ram vm.
Gateway is a router(R6850) and the ip address is 10.0.0.1
According to the document, static ip is needed when using AGH, so I give it a static ip by cloud-init. (in this case which is 10.0.1.3 and the netmask is 22)

But cloud-init configure the ip address by adding a config file to /etc/network/interfaces.d/50-cloud-init
content of 50-cloud-init
rather than directly rewrite the /etc/network/interfaces
content of interfaces

So maybe DHCP process only check the /etc/network/interfaces and find that it is still not static and return the err.
The reason I guess so is that as long as I set up static ip through /etc/network/interfaces just looks like this
content of interfaces (manually setting static ip)
the DHCP function works fine.

And here is the log.

I want to know is this a bug or a feature?
is there a best practice to set up DHCP when using both linux with cloud-init and AGH?

[ainar-g]

The main error should be fixed on edge and beta channels. We'll still need to see if we should make some changes wrt /etc/network/interfaces.d/.

[ainar-g]

Okay, it seems like we should take source directives into account. We'll see if we'll be able to do that in the v0.107.0 cycle.

[EugeneOne1]

@conghuayu, the latest build in the edge channel provides support for source directives in etc/network/interfaces file. Could you please check, if it works with your configuration?

[EugeneOne1]

@conghuayu, we'll close the issue for now. Please feel free to reopen it if the problem persists.