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nixos/vms: Add UUID and MAC address options

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This commit is contained in:
Jack O'Sullivan 2022-05-12 21:06:46 +01:00
parent 1eac3c8577
commit 5563d1be46
3 changed files with 12 additions and 2 deletions
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6
devshell/commands.nix
View File

@ -42,6 +42,12 @@ in
help = pkgs.agenix.meta.description;
command = ''exec ${pkgs.agenix}/bin/agenix --identity "$PRJ_ROOT/.keys/dev.key" "$@"'';
}
{
name = "qemu-genmac";
category = "utilities";
help = "Generate MAC address suitable for QEMU";
command = ''printf "52:54:00:ab:%02x:%02x\n" $((RANDOM%256)) $((RANDOM%256))'';
}
{
name = "fmt";

3
nixos/boxes/colony.nix
View File

@ -39,7 +39,8 @@
};
vms = {
instances.test = {
networks.virtual = {};
uuid = "59f51efb-7e6d-477b-a263-ed9620dbc87b";
networks.virtual.mac = "52:54:00:ab:f1:52";
drives = {
disk = {
backend = {

5
nixos/modules/vms.nix
View File

@ -44,6 +44,7 @@ let
options = {
bridge = mkOpt' str name "Network bridge to connect to.";
model = mkOpt' str "virtio-net" "Device type for network interface.";
mac = mkOpt' str null "Guest MAC address.";
extraOptions = mkOpt' qemuOpts { } "Extra QEMU options to set for the NIC.";
};
};
@ -70,6 +71,7 @@ let
timeout = mkOpt' ints.unsigned 30 "Clean shutdown timeout (in seconds).";
};
uuid = mkOpt' str null "QEMU machine UUID.";
machine = mkOpt' str "q35" "QEMU machine type.";
enableKVM = mkBoolOpt' true "Whether to enable KVM.";
enableUEFI = mkBoolOpt' true "Whether to enable UEFI.";
@ -92,6 +94,7 @@ let
i.qemuFlags ++
[
"name ${n}"
"uuid ${i.uuid}"
"machine ${i.machine}"
"cpu ${i.cpu}"
"smp cpus=${toString i.smp.cpus},threads=${toString i.smp.threads}"
@ -113,7 +116,7 @@ let
(optional i.spice.enable "spice unix=on,addr=/run/vms/${n}/spice.sock,disable-ticketing=on") ++
(flatten (mapAttrsToList (nn: c: [
"netdev bridge,id=${nn},br=${c.bridge}"
("device ${c.model},netdev=${nn}" + (extraQEMUOpts c.extraOptions))
("device ${c.model},netdev=${nn},mac=${c.mac}" + (extraQEMUOpts c.extraOptions))
]) i.networks)) ++
(flatten (mapAttrsToList (dn: c: [
"blockdev node-name=${dn}-backend,${c.backend}"