install vitality :
  #if.show: false # by default
  if: which vitality
  else: npm install -g vitality


install vitality same:
  if: which vitality
  else:
    - echo 'Start installing vitality'
    - npm install -g vitality
    - echo 'vitality was installed -g'
#
#mongo:
#  if:   which mongo
#  else: sudo apt-get install -y mongodb
#
#mysql:
#  if:   which mysql
#  else:
#    - /bin/bash -c "sudo debconf-set-selections <<< 'mysql-server mysql-server/root_password password root'"
#    - /bin/bash -c "sudo debconf-set-selections <<< 'mysql-server mysql-server/root_password_again password root'"
#    - /bin/bash -c "sudo apt-get -y install mysql-server"