Merge pull request #232250 from YBeaugnon/libvirt-hooks (dcafb07e) · Commits · nix / nixpkgs

nixos/modules/virtualisation/libvirtd.nix

+71 −0

Original line number	Diff line number	Diff line
		@@ -129,6 +129,60 @@ let
		};
		};
		};

		hooksModule = types.submodule {
		options = {
		daemon = mkOption {
		type = types.attrsOf types.path;
		default = { };
		description = lib.mdDoc ''
		Hooks that will be placed under /var/lib/libvirt/hooks/daemon.d/
		and called for daemon start/shutdown/SIGHUP events.
		Please see https://libvirt.org/hooks.html for documentation.
		'';
		};

		qemu = mkOption {
		type = types.attrsOf types.path;
		default = { };
		description = lib.mdDoc ''
		Hooks that will be placed under /var/lib/libvirt/hooks/qemu.d/
		and called for qemu domains begin/end/migrate events.
		Please see https://libvirt.org/hooks.html for documentation.
		'';
		};

		lxc = mkOption {
		type = types.attrsOf types.path;
		default = { };
		description = lib.mdDoc ''
		Hooks that will be placed under /var/lib/libvirt/hooks/lxc.d/
		and called for lxc domains begin/end events.
		Please see https://libvirt.org/hooks.html for documentation.
		'';
		};

		libxl = mkOption {
		type = types.attrsOf types.path;
		default = { };
		description = lib.mdDoc ''
		Hooks that will be placed under /var/lib/libvirt/hooks/libxl.d/
		and called for libxl-handled xen domains begin/end events.
		Please see https://libvirt.org/hooks.html for documentation.
		'';
		};

		network = mkOption {
		type = types.attrsOf types.path;
		default = { };
		description = lib.mdDoc ''
		Hooks that will be placed under /var/lib/libvirt/hooks/lxc.d/
		and called for networks begin/end events.
		Please see https://libvirt.org/hooks.html for documentation.
		'';
		};
		};
		};
		in
		{

		@@ -246,6 +300,14 @@ in
		QEMU related options.
		'';
		};

		hooks = mkOption {
		type = hooksModule;
		default = { };
		description = lib.mdDoc ''
		Hooks related options.
		'';
		};
		};


		@@ -337,6 +399,15 @@ in
		ln -s --force ${ovmfpackage}/FV/AAVMF_VARS.fd /run/${dirName}/nix-ovmf/
		ln -s --force ${ovmfpackage}/FV/OVMF_VARS.fd /run/${dirName}/nix-ovmf/
		'')}

		# Symlink hooks to /var/lib/libvirt
		${concatStringsSep "\n" (map (driver:
		''
		mkdir -p /var/lib/${dirName}/hooks/${driver}.d
		rm -rf /var/lib/${dirName}/hooks/${driver}.d/*
		${concatStringsSep "\n" (mapAttrsToList (name: value:
		"ln -s --force ${value} /var/lib/${dirName}/hooks/${driver}.d/${name}") cfg.hooks.${driver})}
		'') (attrNames cfg.hooks))}
		'';

		serviceConfig = {

nixos/tests/libvirtd.nix

+7 −0

Original line number	Diff line number	Diff line
		@@ -11,6 +11,9 @@ import ./make-test-python.nix ({ pkgs, ... }: {
		memorySize = 2048;

		libvirtd.enable = true;
		libvirtd.hooks.qemu.is_working = "${pkgs.writeShellScript "testHook.sh" ''
		touch /tmp/qemu_hook_is_working
		''}";
		};
		boot.supportedFilesystems = [ "zfs" ];
		networking.hostId = "deadbeef"; # needed for zfs
		@@ -57,5 +60,9 @@ import ./make-test-python.nix ({ pkgs, ... }: {
		virthost.shutdown()
		virthost.wait_for_unit("multi-user.target")
		virthost.wait_until_succeeds("ping -c 1 nixos")

		with subtest("test if hooks are linked and run"):
		virthost.succeed("ls /var/lib/libvirt/hooks/qemu.d/is_working")
		virthost.succeed("ls /tmp/qemu_hook_is_working")
		'';
		})