configSync automation script

[joe.vishnevsky]

hi guys

I am new to both Lynx and scripting, currently I am responsible for half a dozen F5 Bigip.

Therefore, since I have no openbsd experience I have had to jump in at the very deep end.

My problem is that I need to make a script to enable our bipip version 4.64 to ensure that both active and standby configs are in sync.

My criteria is something like:

issue command "b failover" this will check that node is active or in standby.

Now if it is active I need to run the following command:

b config sync

I am going to configure a cron job however reading shell scripting so far has been bewildering as I have no unix experience. I have come up with this so far:

#!/bin/bash
#< ensuring both F5’s configs are in sync
a=’echo b failover!’
b=’The failover state is ACTIVE.’
echo b failover | sh

echo $a
if [ "$a eq "$b""]
then
b config sync

exit

will this work? if not can you ammend it ?


In addition, if I can be so cheeky If I would like to send success or failure to syslogger???

if possible can someone advise what commands i would need to check both nodes configs and then run a config sync from active to standby or am I asking for too much

[redhead]

#!/bin/bash
#< ensuring both F5's configs are in sync
a='echo b failover!'
b='The failover state is ACTIVE.'
echo b failover | sh
echo $a
if [ "$a eq "$b""]
then
b config sync
exit

This most likely wont work..
Since I have no experience with Big-ip, I’m not very good at communicating with any of the nodes, but something like this migth get you further:

#!/bin/sh
# 
# script to check if backup node is active and in sync with master node
# get ACTIVE or anything else from the node
ACTIVE=`bigip failover`
if [ "$ACTIVE"x != x ]; then
  # there is a value stored in $ACTIVE
  case "$ACTIVE" in
      "The failover state is ACTIVE.")
          logger -t Big-ip -p local3.info "Syncing the two nodes config"
          bigip config sync
      ;;
      * )
          # Anything which dosn't match our criteria
          logger -t Big-ip -p local0.notice "Unexpected return from failover check: $ACTIVE"
      ;;
  esac
else
  # $ACTIVE contains nothing, perhaps an error ?? 
  logger -t Big-ip -p local0.notice "Unexpected NULL from failover check"
fi

In addition, if I can be so cheeky If I would like to send success or failure to syslogger???

Look at the logger(1) program:

NAME
logger – a shell command interface to the syslog(3) system log module

SYNOPSIS
logger [-isd] [-f file] [-p pri] [-t tag] [-u socket] [message …]

[joe.vishnevsky]

This most likely wont work..
Since I have no experience with Big-ip, I’m not very good at communicating with any of the nodes, but something like this migth get you further:

#!/bin/sh
# 
# script to check if backup node is active and in sync with master node
# get ACTIVE or anything else from the node
ACTIVE=`bigip failover`
if [ "$ACTIVE"x != x ]; then
  # there is a value stored in $ACTIVE
  case "$ACTIVE" in
      "The failover state is ACTIVE.")
          logger -t Big-ip -p local3.info "Syncing the two nodes config"
          bigip config sync
      ;;
      * )
          # Anything which dosn't match our criteria
          logger -t Big-ip -p local0.notice "Unexpected return from failover check: $ACTIVE"
      ;;
  esac
else
  # $ACTIVE contains nothing, perhaps an error ?? 
  logger -t Big-ip -p local0.notice "Unexpected NULL from failover check"
fi

Look at the logger(1) program:

Hi Red thanks a lot for that… looks like a goer I will give it a try….

recieved another option from load balancer forum:

syncscript1:

#!/bin/sh
for Status in $(bigpipe failover show | grep -c "The failover state is
ACTIVE")
do
if [ $Status -eq 1 ]
then
bigpipe configsync all
else
echo "This unit is currently in Standby mode"
>> /var/logsync.log

fi

done

based on your script I will combine your logger bit..

once again very much appreciated