capistrano known hosts task

gistfile1.rb

task :hoge do
  temp_file = "/tmp/config.txt"
  ssh_conf  = "/root/.ssh/config"
  run "echo 'Host *'                        > #{temp_file}"
  run "echo 'StrictHostKeyChecking no'     >> #{temp_file}"
  run "echo 'UserKnownHostsFile /dev/null' >> #{temp_file}"
  run "sudo mv  #{temp_file} #{ssh_conf}"
  run "sudo chmod 600 #{ssh_conf}"
  run "sudo chown root:root #{ssh_conf}"
end