Bash / Expect script for add a node into an old F5 LoadBalancer's pool.

F5_addHost.sh

#!/bin/bash
which expect > /dev/null
if [ "$?" -eq "1" ];then echo FAILURE
else
if [ -z "$1" ] || [ -z "$2" ] || [ -z "$3" ];then echo FAILURE Some var is undefined set PASS $1 POOL $2 ipAndPort $3;exit;fi
PASS=$1 
POOL=$2 
ipAndPort=$3
tempFile=/tmp/resultado
#Variable
scriptName=addNode.exp
expectCommand="ssh theeye@10.2.2.2 'modify ltm pool \$pool members add { $ipAndPort }'"
#
rm $tempFile
cat <<EOF > $scriptName
#!/usr/bin/expect -f
set force_conservative 0  ;
if {\$force_conservative} {
	set send_slow {1 .1}
	proc send {ignore arg} {
		sleep .1
		exp_send -s -- \$arg
	}
}

set password [lindex \$argv 0];
set pool [lindex \$argv 1];

set timeout -1
spawn \$env(SHELL)
match_max 100000
expect "$ "
send -- "$expectCommand"
sleep 1
send -- "\r"
expect -exact "\r
Password: "
send -- "\$password\r"
expect "$ "
send -- "exit\r"
expect eof

EOF

chmod +x $scriptName
state="success" 
expect ./$scriptName $PASS $POOL 
echo $state
fi