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https://github.com/ilyakooo0/nixpkgs.git
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42adeef9ec
Since e791519f0f ("nixos/qemu-vm: use qemu_kvm"), VMs generated with
nixos-rebuild build-vm use the qemu_kvm package instead of the qemu
package. (The difference between them is that qemu_kvm is only built
with support for the host architecture, not all architectures.)
But with this change, nixos-rebuild build-vm would now depend on
_both_ QEMUs, because the guest agent module was still using the one
from the full QEMU package. There's no need for it to use this
instead of the lighter qemu_kvm, because the guest agent shouldn't be
affected by which platforms QEMU can emulate.
46 lines
1.1 KiB
Nix
46 lines
1.1 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.services.qemuGuest;
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in {
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options.services.qemuGuest = {
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enable = mkOption {
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type = types.bool;
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default = false;
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description = "Whether to enable the qemu guest agent.";
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};
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package = mkOption {
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type = types.package;
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default = pkgs.qemu_kvm.ga;
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defaultText = literalExpression "pkgs.qemu_kvm.ga";
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description = "The QEMU guest agent package.";
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};
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};
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config = mkIf cfg.enable (
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mkMerge [
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{
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services.udev.extraRules = ''
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SUBSYSTEM=="virtio-ports", ATTR{name}=="org.qemu.guest_agent.0", TAG+="systemd" ENV{SYSTEMD_WANTS}="qemu-guest-agent.service"
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'';
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systemd.services.qemu-guest-agent = {
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description = "Run the QEMU Guest Agent";
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serviceConfig = {
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ExecStart = "${cfg.package}/bin/qemu-ga --statedir /run/qemu-ga";
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Restart = "always";
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RestartSec = 0;
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# Runtime directory and mode
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RuntimeDirectory = "qemu-ga";
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RuntimeDirectoryMode = "0755";
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};
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};
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}
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]
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);
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}
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