#!/bin/bash

#########################################################################################################
#barber.greg@gmail.com
#copyright 2006 Greg Barber
#
#This program is free software; you can redistribute it and/or modify
#    it under the terms of the GNU General Public License as published by
#    the Free Software Foundation; either version 2 of the License, or
#    (at your option) any later version.
#
#    This program is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU General Public License for more details.
#
#   You should have received a copy of the GNU General Public License along
#    with this program; if not, write to the Free Software Foundation, Inc.,
#    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
#
#Author: Greg Barber
#barber.greg@gmail.com
#Purpose: Generate a report of machine name, current kernel release & version and all packages listed in the rpm database.											
#Changes: 1-17-2007											
#Added commands to extract disk information and Logical Volume Management information.
#Changes 5-8-2007
#Added commands to extract link speed, duplex, and auto-negotiation information from ethtool			
#Changes 6-14-2007
#Wasn't parsing all the CPU info fixed in the awk statement
#Added functions to allow report to be generated in html format or plain text
#Added full path to ethtool was causing an error before the change
#Added variable so the report will save to the user's home directory

#Changes 9-13-2007
#Changed the call to /sbin/pvdisplay to /sbin/lvm pvdisplay to improve compatibility with RedHat
#Changes the call to /sbin/lvdisplay to /sbin/lvm lvdisplay to improve compatibility with RedHat
#Added a test so that lvdisplay will not run if there are no physical volumes found
#Cleaned up the output by adding spaces between items
#Added .html extension to the output of the HTML version of the report
#Added a section to list running services
#Changes 9-14-2007
#Fixed issue with output of Physical Volumes information appearing on one line
#Changes 9-20-2007
#Added a variable to output OS release version (only works with RedHat or SuSE currently)
########################################################################################################

RELEASE=$(uname -r)
VERSION=$(uname -v)
NODE=$(uname -n)
DATE=$(date +%Y-%m-%d)
CPU=$(sed -n -e '/model name/p' /proc/cpuinfo | awk '{print $4,$5,$6,$7,$9}')
REPORT=$HOME/$NODE-server-report-$DATE

#The primary interface will be different if we are running a xen kernel, this will test if we are running a xen kernel and get the proper interface in either case
if echo "$RELEASE" | grep -q "xen"
   then
      INTERFACE=$(/sbin/ifconfig | sed -n -e '/peth/p' | awk '{print $1}')
   else
      INTERFACE=$(/sbin/ifconfig | sed -n -e '/eth/p' | awk '{print $1}')
fi

#Determind the OS release version
if [ -e /etc/SuSE-release ]
   then
      OSVER=$(cat /etc/SuSE-release)
   elif [ -e /etc/redhat-release ]
      then
         OSVER=$(cat /etc/redhat-release)
   else
      OSVER=$(cat /dev/null)
fi

IP=$(/sbin/ifconfig | sed -n  -e '/Bcast/p' | cut -d : -f 2 | awk '{print $1}')

#ethtool needs to be run as root, if not running as root set the variable to a warning message
if [ `whoami` = "root" ]
   then
      LINK_SPEED=$(/usr/sbin/ethtool $INTERFACE | grep Speed | cut -d : -f 2)
else
   LINK_SPEED="You need to be root to get this information from ethtool"
fi

#ethtool needs to be run as root, if not running as root set the variable to a warning message
if [ `whoami` = "root" ]
   then     
      DUPLEX=$(/usr/sbin/ethtool $INTERFACE | grep Duplex | cut -d : -f 2)
else
   DUPLEX="You need to be root to get this information from ethtool"
fi 

#ethtool needs to be run as root, if not running as root set the variable to a warning message
if [ `whoami` = "root" ]
   then
      AUTO_NEG=$(/usr/sbin/ethtool $INTERFACE | grep "Auto-negotiation" | cut -d : -f 2)
else 
   AUTO_NEG="You need to be root to get this information from ethtool"
fi

function usage
{
  echo "Usage: server-report [OPTION] "
  echo " " 
  echo "Options: "
  echo " " 
  echo "-p, --plain-text       prints a report in plain text format"
  echo "-H, --html             prints a report in html format"
  echo "-h, --help             display this help and exit"
  echo " " 
  echo "--version              output version information and exit"
  echo " "
}

function version
{
  echo "server-report version 1.52"
  echo " "
  echo "Copyright (C) 2006 Free Software Foundation, Inc.
  This is free software.  You may redistribute copies of it under the terms of
  the GNU General Public License <http://www.gnu.org/licenses/gpl.html>.
  There is NO WARRANTY, to the extent permitted by law."
  echo " " 
  echo "Written by Greg Barber"
}


function plain
{
   echo -e "\nMACHINE NAME: " $NODE >> $REPORT
   echo -e "\nCPU INFO: " $CPU >> $REPORT
   echo -e "\nIP ADDRESS: " $IP >> $REPORT
   echo -e "\nLINK SPEED: " $LINK_SPEED >> $REPORT
   echo -e "\nDUPLEX: " $DUPLEX >> $REPORT
   echo -e "\nAUTO NEGOTIATION: " $AUTO_NEG >> $REPORT
   echo -e "\nOS RELEASE: " $OSVER >> $REPORT	
   echo -e "\nKERNEL RELEASE: " $RELEASE >> $REPORT 
   echo -e "\nKERNEL VERSION: " $VERSION >> $REPORT
   echo -e "\nINSTALLED PACKAGES:" >> $REPORT
   rpm -qa | sort >> $REPORT
   echo -e `rpm -qa | wc -l` packages installed  >> $REPORT
  

   echo -e "\nDISK SPACE INFORMATION" >> $REPORT
   df -h >> $REPORT
   
         echo -e "\nLVM (PHYSICAL VOLUMES) INFORMATION">> $REPORT
            if [ `whoami` = "root" ]
               then
                  PHY_VOL_INFO=$(/sbin/lvm pvdisplay)
				  if [ "$PHY_VOL_INFO" != "" ]
					then
				           /sbin/lvm pvdisplay >> $REPORT
				   fi 		
		  else
               echo "You need to be root to get this information" >> $REPORT
            fi

         echo -e "LVM (LOGICAL VOLUMES) INFORMATION">> $REPORT
         if [ `whoami` = "root" ]
            then
			   if [ "$PHY_VOL_INFO" != "" ]
                               then			   
					/sbin/lvm lvdisplay >> $REPORT
				fi	
         else
            echo "You need to be root to get this information" >> $REPORT
         fi
	echo -e "RUNNING SERVICES INFORMATION" >> $REPORT
	/sbin/chkconfig --list >> $REPORT
}

function html
{
  echo "<HTML>" > $REPORT
  echo "<HEAD><TITLE>$NODE Server Report</TITLE></HEAD>" >> $REPORT
  echo "<BODY>" >> $REPORT
  echo "<PRE>" >> $REPORT
  echo "REPORT DATE: " `date +%c` >> $REPORT 
  plain
  echo "</PRE>" >> $REPORT
  echo "</BODY>" >> $REPORT
  echo "</HTML>" >> $REPORT
  mv $REPORT $REPORT.html	
}

if [ "$1" = "-p" ] || [ "$1" = "--plain-text" ]
   then
      echo "REPORT DATE: " `date +%c` > $REPORT
      plain
elif [ "$1" = "-H" ] || [ "$1" = "--html" ]
   then
      html
elif [ "$1" = "-h" ] || [ "$1" = "--help" ] 
   then
      usage
elif [ "$1" = "--version" ]
   then
      version
else
   usage
fi

exit 0