log_rotate.diff

diff --git a/lib/Mojo/Log.pm b/lib/Mojo/Log.pm
index 63d50d5..846b9bd 100644
--- a/lib/Mojo/Log.pm
+++ b/lib/Mojo/Log.pm
@@ -56,6 +56,8 @@ sub new {
   return $self;
 }
 
+sub reopen { delete shift->{handle} }
+
 sub warn { shift->log(warn => @_) }
 
 sub _format {
diff --git a/lib/Mojo/Server/Prefork.pm b/lib/Mojo/Server/Prefork.pm
index d3f39a6..73b34e3 100644
--- a/lib/Mojo/Server/Prefork.pm
+++ b/lib/Mojo/Server/Prefork.pm
@@ -93,6 +93,10 @@ sub run {
       ($w->{graceful} = steady_time) and last unless $w->{graceful};
     }
   };
+  local $SIG{USR1} = sub {
+    $self->app->log->reopen;
+    kill 'USR1', $_ for keys %{$self->{pool}};
+  };
 
   # Preload application before starting workers
   $self->start->app->log->info("Manager $$ started");
@@ -191,6 +195,7 @@ sub _spawn {
   # Clean worker environment
   $SIG{$_} = 'DEFAULT' for qw(CHLD INT TERM TTIN TTOU);
   $SIG{QUIT} = sub { $loop->max_connections(0) };
+  $SIG{USR1} = sub { $self->app->log->reopen };
   delete @$self{qw(poll reader)};
   srand;
 
diff --git a/lib/Mojolicious/Plugin/Mount.pm b/lib/Mojolicious/Plugin/Mount.pm
index 5a78acd..1d4ef6a 100644
--- a/lib/Mojolicious/Plugin/Mount.pm
+++ b/lib/Mojolicious/Plugin/Mount.pm
@@ -7,7 +7,7 @@ sub register {
   my ($self, $app, $conf) = @_;
 
   my $path  = (keys %$conf)[0];
-  my $embed = Mojo::Server->new->load_app($conf->{$path});
+  my $embed = Mojo::Server->new->load_app($conf->{$path})->log($app->log);
 
   # Extract host
   my $host;