Merge recent 'staging' into closure-size

Let's get rid of those merge conflicts.

nixos/modules/virtualisation/container-config.nix

@@ -19,6 +19,9 @@ with lib;
     # Shut up warnings about not having a boot loader.
     system.build.installBootLoader = "${pkgs.coreutils}/bin/true";
 
+    # Not supported in systemd-nspawn containers.
+    security.audit.enable = false;
+
   };
 
 }

nixos/modules/virtualisation/nixos-container.pl

@@ -97,10 +97,10 @@ if ($action eq "create") {
     if ($ensureUniqueName) {
         my $base = $containerName;
         for (my $nr = 0; ; $nr++) {
-            $containerName = "$base-$nr";
             $confFile = "/etc/containers/$containerName.conf";
             $root = "/var/lib/containers/$containerName";
             last unless -e $confFile || -e $root;
+            $containerName = "$base-$nr";
         }
     }
 

nixos/modules/virtualisation/nova.nix

@@ -146,7 +146,7 @@ in
 
         path =
           [ pkgs.sudo pkgs.vlan pkgs.nettools pkgs.iptables pkgs.qemu_kvm
-            pkgs.e2fsprogs pkgs.utillinux pkgs.multipath_tools pkgs.iproute
+            pkgs.e2fsprogs pkgs.utillinux pkgs.multipath-tools pkgs.iproute
             pkgs.bridge-utils
           ];
 

nixos/modules/virtualisation/rkt.nix

@@ -58,5 +58,7 @@ in
         ExecStart = "${pkgs.rkt}/bin/rkt gc ${cfg.gc.options}";
       };
     };
+
+    users.extraGroups.rkt = {};
   };
 }