set user => "root"; group "frontend" => "server1", "server2", "server3", "server4"; group "local" => "mango", "debian01"; desc "Show uptime"; task "uptime", group => "local", sub { run "uptime"; }; desc "Show free space"; task "show_disk_free", sub { run "df -h"; }; desc "Upload file"; task "upload", "mango", sub { upload "/tmp/test.txt", "/tmp/test.txt"; };