@ Prerequisities
  - on host3 host4
  - i_am root
  - call ./system_base.ble
  - not empty echo $1

@ Setting up some variables
  - set_var FQDN not empty hostname
  - set_var DOMAIN2 not empty evaluate "echo $FQDN | awk -F . '{ print \$(NF-1) \".\" \$NF }' "
  # expects an ip address to be passed as the first argument to the script
  - set_var MY_IP echo $1
  # expects a public key to be passed on stdout
  - set_var PUBLIC_KEY not empty cat

@ Adding user webuser and his public key
  - may_fail useradd webuser
  - add_line "$PUBLIC_KEY" /home/webuser/.ssh/authorized_keys

@ Running bundle install
  - cd /var/www
  - bundle install

@ Install nginx unless already
  - skip_if test -x /usr/sbin/nginx
  - yum_install nginx
  - rsync -av /shared/config/webserver/ /

@ Start nginx and ensure it is running
  - service nginx start
  - timeout 20 wait_for_tcp "$MY_IP":80 up

basedir=`dirname $(readlink -f "$0")`

if [ "`hostname`" == host3 -o "`hostname`" == host5 ]; then
  exit 1
fi
if [ "$USER" != guest1 -a "$USER" != guest2 ]; then
  exit 1
fi
source './system_base.ble' || { echo 'error sourcing functions'; exit 1; }

echo "Setting up some variables"
FQDN=`hostname`
if [ -z "$FQDN" ]; then
  echo "FQDN is empty"; exit 1
fi
DOMAIN2=`echo $FQDN | awk -F . '{ print \$(NF-1) \".\" \$NF }' "`
if [ -z "$DOMAIN2" ]; then
  echo "DOMAIN2 is empty"; exit 1
fi
MY_IP=$1
if [ -z "$MY_IP" ]; then
  echo "MY_IP is empty"; exit 1
fi
PUBLIC_KEY=`cat`
if [ -z "$PUBLIC_KEY" ]; then
  echo "PUBLIC_KEY is empty"; exit 1
fi

echo "Adding user webuser and his public key"
useradd webuser
if ! grep "$PUBLIC_KEY" /home/webuser/.ssh/authorized_keys; then
   echo "$PUBLIC_KEY" >> /home/webuser/.ssh/authorized_keys || { echo "can't edit file"; exit 1; }
fi

echo "Running bundle install"
cd /var/www || { echo "can't chdir"; exit 1; }
bundle install || { echo "can't bundle install"; exit 1; }

cd "$basedir" || { echo "can't chdir"; exit 1; }
if [ ! -x /usr/sbin/nginx ]; then
  echo "Installing nginx unless already"
  yum install -y nginx || { echo "yum failed"; exit 1; }
  echo "Installing default vhosts.d contents unless already"
  rsync -av /shared/config/webserver/ / || { echo "rsync failed"; exit 1; }
fi

echo "Start nginx and ensure it is running"
service start nginx
timeout 20 bash -c '
  while ! netstat -ltn | grep LISTEN | grep "$MY_IP":80; do
    sleep 1; 
  done
'

 wget https://raw.githubusercontent.com/mig1984/bashible/master/bashible
 chmod 755 bashible
 ./bashible your-script.ble ARG1 ARG2 ...