automate installing tripwire using expect

By Nate Murray | Published: July 10, 2009

tripwire is a handy part of an intrusion detection system. It’s a nice piece of software but the installer is interactive which makes it a pain to install automatically (e.g. when using PoolParty/EC2). Below is a simple expect script I whipped up to solve the make install problem. Hopefully this will save someone two or three minutes.

# Usage: expect install-tripwire.tcl pass1 pass2 
set PASS1 [lindex $argv 0]
set PASS2 [lindex $argv 1]
 
spawn make install
 
expect "Press ENTER to view the License Agreement."
send "\r"
send "q"
expect "license agreement. \[do not accept\]"
send "accept\r"
expect "Continue with installation? \[y/n\]"
send "y\r"
 
expect "Enter the site keyfile passphrase:"
send "$PASS1\r"
expect "Verify the site keyfile passphrase:"
send "$PASS1\r"
 
expect "Enter the local keyfile passphrase:"
send "$PASS2\r"
expect "Verify the local keyfile passphrase:"
send "$PASS2\r"
 
expect "Please enter your site passphrase:"
send "$PASS1\r"
 
expect "Please enter your site passphrase:"
send "$PASS1\r"
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