1 files changed, 84 insertions, 0 deletions

diff --git a/custom/libvirtd-guests.nix b/custom/libvirtd-guests.nix
new file mode 100644
index 00000000..36ffa3c9
--- /dev/null
+++ b/custom/libvirtd-guests.nix
@@ -0,0 +1,84 @@
+{ config, pkgs, lib, utils, ... }:
+
+with utils;
+with lib;
+
+let
+  cfg = virtualisation.libvirtd;
+
+  textfile = with types; coercedTo str (pkgs.writeText "spec.xml") path;
+
+  domain = {
+    options = {
+      xml = mkOption {
+        type = 
+      };
+
+      autostart = mkOption {
+        type = types.bool;
+        default = true;
+      };
+    };
+  };
+
+  define = let
+    python = pkgs.python27.withPackages (ps: with ps; [ libvirt ]);
+  in dCfg: ''
+    #!${python}/bin/python
+
+    import libvirt
+    import sys
+
+    conn = libvirt.open(None);
+    if conn == None:
+      print('Failed to open connection to hypervisor', file=sys.stderr)
+      sys.exit(1)
+
+    xmlFile = open(${escapeShellArg dCfg.xml}, 'r')
+    dom = conn.defineXML(xmlFile.read(), 0)
+    xmlFile.close()
+    if dom == None:
+      print('Failed to define domain', file=sys.stderr)
+      sys.exit(1)
+
+    dom.setAutostart(${if dCfg.autostart then "1" else "0"})
+
+    conn.close()
+    sys.exit(0)
+  '';
+in {
+  options = {
+    virtualisation.libvirtd = {
+      domains = mkOption {
+        type = with types; attrsOf (submodule guest);
+        default = {};
+      };
+    };
+  };
+
+  config = mkIf (cfg.domains != {}) {
+    systemd.services."libvirtd-guest@" = {
+      after = [ "libvirtd.service" ];
+      bindsTo = [ "libvirtd.service" ];
+
+      before = [ "libvirt-guests.service" ];
+
+      serviceConfig = {
+        Type = "oneshot";
+        RemainAfterExit = true;
+      };
+
+      path = with pkgs; [ libvirtd ];
+    };
+
+    systemd.services = mapAttrs' (dName: dCfg: nameValuePair ("libvirtd-guest@" + escapeSystemdPath dName + ".service") {
+      serviceConfig = {
+        ExecStart = pkgs.writeScript (dName + ".py") (define dCfg);
+      };
+    }) cfg.domains;
+
+    systemd.services."libvirt-guests.service" = {
+      wants = mapAttrsToList (dName: dCfg: "libvirtd-guest@" + escapeSystemdPath dName + ".service") cfg.domains;
+    };
+  };
+}