#! /bin/bash
#vzgot.mksrvz
#-------------------------------------------------------------------
#procedure to install a specific VZserver 
#$1 is the vserver node name    (will become nodename.your_domain.name)
#-------------------------------------------------------------------
NODENAME=$1
DOMAIN=`dnsdomainname`
VSR=$NODENAME.$DOMAIN
#===================================================================
#setting default distribution and Architecture.
DISTRIB="fc12"
CPUARCH="i386"
#===================================================================
#defining default template name 
#you can modify it according your own template setup name rule
TPL=linux-$DISTRIB-$CPUARCH-vzserver.tar.gz
#===================================================================
#lock procedure
lockproc()

{
LOCKFILE=/var/lock/`basename $0`.$1.lck

trap "rm -f $LOCKFILE ; exit 1" 1 2 3 15
if (set -C; : > $LOCKFILE) 2> /dev/null ; then
    echo $$ >> $LOCKFILE
  else
    echo "Another '`basename $0` $1' is running, existing at once!"
    echo "remove $LOCKFILE, if it is not the case"
    rm -f $LOCKFILE
    exit 0;
  fi
}
#-------------------------------------------------------------------
#abort procedure
abort ()

{
echo "$1"
rm -f $LOCKFILE
exit 1;
}

#===================================================================
#main process

#locking building process
lockproc $1
#===================================================================
#getting all the needed information from the vzgot_list file
sed 's/#.*//g' /etc/vzgot/vzgot_list	  |	\
		 grep -v '^[[:space:]]*$' |	\
		 grep $NODENAME		  |	\
while read -r NODE TEMPLATE DISTRIB CPUARCH
  do

#setting distribution
  FLINUX="RedHat"
  case "$DISTRIB" in
    "ovzel5.4"	|				\
    "el5.2"	|				\
    "el5.3"	|				\
    "el5.4"	|				\
    "el4.8"	|				\
    "el4.7"	|				\
    "el4.6"	|				\
    "ovzfc12"	|				\
    "fc13"	|				\
    "fc12"	|				\
    "fc11"	|				\
    "fc10"	|				\
    "fc9"	|				\
    "fc8"	|				\
    "fc7"	|				\
    "fc6"	|				\
    "fc5"	|				\
    "fc4"	|				\
    "fc3"	|				\
    "fc2"	|				\
    "rhel4"	|				\
    "rh9"	|				\
    "rh8.0"	|				\
    "rh7.3"	)
      FLINUX="RedHat"	#Redhat family distribution
      ;;
    "ovzubu9.4"	|				\
    "ubu9.4"	|				\
    "ubu8.4"	)
      FLINUX="Debian"	#Debian family distribution
      ;;
    "*"		)
      abort "Unknown Linux distribution, exiting"
      exit 1 
      ;;
    esac;
#===================================================================
#extracting node ip number
  IPNUM=`dig +short $VSR | grep -v [a-z]`
  if [ -z "$IPNUM" ] ; then
    abort "No IP number found for $VSR hostname"
    fi
#-------------------------------------------------------------------
#lets create the node file system
  TPL=$TEMPLATE.tar.gz
  vzgot create $NODENAME $TPL $DISTRIB $CPUARCH
  RETVAL=$?
  if [ $RETVAL -ne 0 ] ; then 
    abort "Unable to create $NODENAME root file system"
    fi
#-------------------------------------------------------------------
#lets do the node first boot
  vzgot firstboot -D $FLINUX -i $IPNUM -d $DOMAIN -n $NODENAME $NODENAME
  RETVAL=$?
  if [ $RETVAL -ne 0 ] ; then 
    abort "Unable to do $NODENAME first boot"
    fi
#-------------------------------------------------------------------
#lets start vzgot
  vzgot boot $NODENAME
  RETVAL=$?
  if [ $RETVAL -ne 0 ] ; then 
    abort "Unable to boot $NODENAME"
    fi
  #everything fine
  echo "$NODENAME is now installed and 'up and running'"
#===================================================================
  done
#END
rm -f $LOCKFILE