server :myserver, :address => "abc.com", :user => "appuser", :keys => "~/.ssh/my_key"
server :another, :addresses => ["abc.com","def.com"], :user => "appuser", :password => "xxx"

task :link_file do
  run "link_file"
end

task :setup do
  link_file
  run "setup1"
  run "setup2"
  scp :local => "~/setup.cmd", :remote => "/mnt/setup.cmd"
end

task :cleanup do
  run "rm -rf /tmp/*"
end

task :bail_out do
  run "bail_out_commands"
end

task :deploy, :server => :myserver do
  setup
  run "touch /tmp/restart.txt"
end

task :multiple_restart, :servers => [:myserver, :another], :parallel => false do
  after :setup do
    cleanup
  end
  local "prepare_something"
  scp :local => "~/numbers.txt", :remote => "/mnt/numbers.txt"
  run "touch /tmp/restart.txt"
  cleanup
end