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nixos/qemu-vm: add option for named network interfaces

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Adds a new option to the virtualisation modules that enables specifying explicitly named network interfaces in QEMU VMs.
The existing `virtualisation.vlans` option is still supported for cases where the name of the network interface is irrelevant.
This commit is contained in:
Graham Dennis 2023-05-22 13:38:52 +10:00
parent e6e049b7a2
commit 93502aa3b1
5 changed files with 140 additions and 96 deletions
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32
nixos/modules/virtualisation/qemu-vm.nix
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@ -564,7 +564,8 @@ in
virtualisation.vlans =
mkOption {
type = types.listOf types.ints.unsigned;
default = [ 1 ];
default = if config.virtualisation.interfaces == {} then [ 1 ] else [ ];
defaultText = lib.literalExpression ''if config.virtualisation.interfaces == {} then [ 1 ] else [ ]'';
example = [ 1 2 ];
description =
lib.mdDoc ''
@ -579,6 +580,35 @@ in
'';
};
virtualisation.interfaces = mkOption {
default = {};
example = {
enp1s0.vlan = 1;
};
description = lib.mdDoc ''
Network interfaces to add to the VM.
'';
type = with types; attrsOf (submodule {
options = {
vlan = mkOption {
type = types.ints.unsigned;
description = lib.mdDoc ''
VLAN to which the network interface is connected.
'';
};
assignIP = mkOption {
type = types.bool;
default = false;
description = lib.mdDoc ''
Automatically assign an IP address to the network interface using the same scheme as
virtualisation.vlans.
'';
};
};
});
};
virtualisation.writableStore =
mkOption {
type = types.bool;