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Jack-Benny Persson 2012-01-26 06:23:16 +01:00
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README Normal file
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rMachines
This is the very first relase of the rMachines script.
It is a very simple Bash script to collect uptime and who data from remote
machines and then presenting that data on a very simple HTML page.
For this to work you need to setup SSH keys on the remote user on the machines
that will be used to collect the data.
The keys need to be password free becuase it's a non-interactive script.
Usually this is a bad idea considering it's securtiy implications.
So use it on your own risk!!
Jack-Benny Persson
jake@cyberinfo.se

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rmachines.sh Executable file
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#!/bin/bash
################################################################################
# #
# Copyright (C) 2011 Jack-Benny Persson <jake@cyberinfo.se> #
# #
# 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA #
# #
################################################################################
### rMachines version 0.1 ###
### Add your machines to MACHINES. WEBPAGE is the output HTML file.
### The HTML file must to writable by the user running the script.
### If you add the -d option to the script, it will run over and over
### again and update the info every $SLEEP seconds. Add a & to run it
### in the background. For a cron job, don't add the -d option!
### RUSER is the remote user account. That user must have a valid SSH key.
MACHINES=("localhost host2 host3 host4")
WEBPAGE="test.html"
SLEEP=30
RUSER="jake"
##Sanity checks
if [ ! -w "$WEBPAGE" ]; then
printf "You don't have write permission to ${WEBPAGE}\n";
exit 192
fi
for i in ${MACHINES[*]}; do
ssh -o PasswordAuthentication=no -l ${RUSER} $i uptime > /dev/null
if [ "$?" -gt 0 ]; then
printf "There was a problem accessing $i \n"
exit 192
fi
done
#Main routine (run checks and build HTML page)
Main()
{
printf "<html><head><title>My rMachines</title></head>\n<body>\n\n" >\
${WEBPAGE}
printf "<h1>\nMy rMachines\n</h1>\n" >> ${WEBPAGE}
printf "" >> ${WEBPAGE}
for i in ${MACHINES[*]}; do
printf "<b>$i</b>" >> ${WEBPAGE}
printf "\n<br>\n======================\n<br>\n" >> ${WEBPAGE}
ssh -l ${RUSER} $i uptime >> ${WEBPAGE}
printf "<br>\n" >> ${WEBPAGE}
ssh -l ${RUSER} $i who >> ${WEBPAGE}
printf "<p>\n" >> ${WEBPAGE}
done
printf "\n\n</body>\n" >> ${WEBPAGE}
printf "</html>\n" >> ${WEBPAGE}
}
## Check if we want to run the script infinitive times (for background jobs)
if [[ "$1" = "-d" ]]; then
while true
do
Main
sleep ${SLEEP}
done
## Run just once (for cron jobs)
else
Main
fi
exit 0