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Attempt to implement and test setting static ips from instance metadata

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This commit is contained in:
Kaare Hoff Skovgaard 2025-07-07 00:06:55 +02:00
parent dd1cfa79e7
commit 47dbb7cdd3
Signed by: khs
GPG key ID: C7D890804F01E9F0
16 changed files with 258 additions and 59 deletions
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34
nix/modules/nixos/hetzner/default.nix
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@ -1,6 +1,7 @@
{
config,
lib,
pkgs,
system,
...
}:
@ -10,16 +11,16 @@ in
{
options.khscodes.hetzner = {
enable = lib.mkEnableOption "Enables the machine as a hetzner machine";
ipv6-addr = lib.mkOption {
type = lib.types.nullOr lib.types.str;
description = "IPv6 address of the server, for now detecting this from the server itself is not supported";
default = null;
};
diskName = lib.mkOption {
type = lib.types.str;
default = "nixos";
description = "Name of the root disk device";
};
metadataApiUri = lib.mkOption {
type = lib.types.nullOr lib.types.str;
default = null;
description = "Sets the metadata API url that the server will contact to gather metadata information from. Should probably only be used for testing";
};
};
config = lib.mkIf cfg.enable {
@ -48,10 +49,29 @@ in
networkConfig = {
DHCP = "ipv4";
};
routes = [ { Gateway = "fe80::1"; } ];
linkConfig.RequiredForOnline = "routable";
address = lib.mkIf (cfg.ipv6-addr != null) [ cfg.ipv6-addr ];
};
};
systemd.services.hetzner-static-ip = {
enable = true;
wants = [ "network-online.target" ];
after = [ "network-online.target" ];
wantedBy = [ "multi-user.target" ];
serviceConfig = {
Type = "oneshot";
RemainAfterExit = true;
ExecStart = ''
${lib.getExe pkgs.khscodes.hetzner-static-ip} configure
'';
};
environment =
{
PATH = lib.mkForce "";
}
// lib.attrsets.optionalAttrs (cfg.metadataApiUri != null) {
INSTANCE_API_URI = cfg.metadataApiUri;
};
};
};
}