Script to start a docker machine and add associated (sub)domains to the host file

start-docker-machine.sh

# Script to start a docker machine and add associated (sub)domains to the host file
# arguments:
#  - name of the docker machine
#  - list of subdomains separated by a comma
#
# example
#   start_machine myproject www,api
# will result to start the machine myproject and create myproject.dev, www.myproject.dev and api.myproject.dev to access the machine IP
function start_machine {
  started=false
  for machine in $(docker-machine ls | grep "virtualbox.*Running" | cut -d ' ' -f 1)
  do
    if [ "$machine" != "$1" ]
    then
      docker-machine stop $machine
    else
      started=true
    fi
  done
  if [ $started = false ]
  then
    echo "Regenerate certs of $1"
    docker-machine regenerate-certs $1
    echo "Starting machine $1"
    docker-machine start $1
  fi
  eval $(docker-machine env $1)

  powder stop
  hostfile=/etc/hosts
  tld=dev

  sudo sed -i.bak '/# Docker/,/# end Docker/d' $hostfile

  ip=$(echo $DOCKER_HOST | sed "s/tcp:\/\///" | sed "s/:[0-9]*//")
  echo "Adding domains to $DOCKER_MACHINE_NAME machine ($ip)"
  echo "# Docker" | sudo tee -a $hostfile > /dev/null
  echo "$ip\t$1.$tld" | sudo tee -a $hostfile > /dev/null
  echo "$ip\twww.$1.$tld" | sudo tee -a $hostfile > /dev/null
  echo " - $1.$tld"
  echo " - www.$1.$tld"
  for domain in $(echo $2 | tr ',' '\n')
  do
    echo "$ip\t$domain.$1.$tld" | sudo tee -a $hostfile > /dev/null
    echo " - $domain.$1.$tld"
  done
  echo "# end Docker" | sudo tee -a $hostfile > /dev/null

}