desc "Task description";
 
task "taskname", sub { ... };
task "taskname", "server1", ..., "server20", sub { ... };
 
group "group" => "server1", "server2", ...;
 
user "user";
 
password "password";
 
environment live => sub {
  user "root";
  password "foobar";
  pass_auth;
  group frontend => "www01", "www02";
};