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nixos/networking: allow users to override FQDN

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This may be useful for users where `${cfg.hostname}.${cfg.domain}` isn't
actually the fully quantified domain name of the server.
This commit is contained in:
Michael Hoang 2025-03-20 18:29:19 +09:00
parent 2631b0b7ab
commit 4d537721f7
1 changed files with 7 additions and 6 deletions
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13
nixos/modules/tasks/network-interfaces.nix
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@ -578,21 +578,22 @@ in
};
networking.fqdn = mkOption {
readOnly = true;
type = types.str;
default =
if (cfg.hostName != "" && cfg.domain != null) then
"${cfg.hostName}.${cfg.domain}"
else
throw ''
The FQDN is required but cannot be determined. Please make sure that
both networking.hostName and networking.domain are set properly.
The FQDN is required but cannot be determined from `networking.hostName`
and `networking.domain`. Please ensure these options are set properly or
set `networking.fqdn` directly.
'';
defaultText = literalExpression ''"''${networking.hostName}.''${networking.domain}"'';
description = ''
The fully qualified domain name (FQDN) of this host. It is the result
of combining `networking.hostName` and `networking.domain.` Using this
option will result in an evaluation error if the hostname is empty or
The fully qualified domain name (FQDN) of this host. By default, it is
the result of combining `networking.hostName` and `networking.domain.`
Using this option will result in an evaluation error if the hostname is empty or
no domain is specified.
Modules that accept a mere `networking.hostName` but prefer a fully qualified