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feat: allow changing interface name in VM

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Patrick 2025-01-03 00:22:38 +01:00
parent 6a4736e077
commit 2502ff50ab
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2 changed files with 27 additions and 15 deletions
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10
modules/guests/default.nix
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@ -202,7 +202,14 @@ in {
description = "An attrset correlating the host interface to which the microvm should be attached via macvtap, with its mac address"; description = "An attrset correlating the host interface to which the microvm should be attached via macvtap, with its mac address";
type = types.attrsOf ( type = types.attrsOf (
types.submodule (submod-iface: { types.submodule (submod-iface: {
options.mac = mkOption { options = {
hostLink = mkOption {
type = types.str;
description = "The name of the host side link to which this interface will bind.";
default = submod-iface.config._module.args.name;
example = "lan";
};
mac = mkOption {
type = types.net.mac; type = types.net.mac;
description = "The MAC address for the guest's macvtap interface"; description = "The MAC address for the guest's macvtap interface";
default = let default = let
@ -217,6 +224,7 @@ in {
)) ))
."${submod.config._module.args.name}-${submod-iface.config._module.args.name}"; ."${submod.config._module.args.name}-${submod-iface.config._module.args.name}";
}; };
};
}) })
); );
default = {}; default = {};

8
modules/guests/microvm.nix
View file

@ -47,12 +47,16 @@ in {
# MACVTAP bridge to the host's network # MACVTAP bridge to the host's network
interfaces = flip mapAttrsToList guestCfg.microvm.interfaces ( interfaces = flip mapAttrsToList guestCfg.microvm.interfaces (
interface: {mac, ...}: { _: {
mac,
hostLink,
...
}: {
type = "macvtap"; type = "macvtap";
id = "vm-${replaceStrings [":"] [""] mac}"; id = "vm-${replaceStrings [":"] [""] mac}";
inherit mac; inherit mac;
macvtap = { macvtap = {
link = interface; link = hostLink;
mode = "bridge"; mode = "bridge";
}; };
} }