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This instructable will show a script that can be used to automate backups of a foundry networks switch/router/firewall.

Step 1: Requirements

This script uses expect to automate the backups and runs on a linux system.

If you have never check out expect, Oreilly has a great book "Exploring Expect"
http://oreilly.com/catalog/9781565920903/

Step 2: Variables

Set up some variables. You will need to change the username, password, foundry and prompt variables.

#!/usr/bin/expect
#Expect script to backup config of foundry devices
#Joe McManus

#Set some vars
set timeout 60
set user "telnet"
set password "password"
set foundry "foundry.foo.bar.com"
set basedir "/mnt/netapp/backups/foundry.foo.bar.com"
set log "[timestamp -format %Y-%m-%d]-config.txt"
set mailto "joe@foo.com"
set mailsubject "Error: foundry backup failed [timestamp -format %Y-%m-%d] "
set mailfail ""
set prompt "telnet@FLS648"

Step 3: Connect

This part of the script attempts to connect to the foundry.
send_user "Foundry Backup Script\n"

send_user "Connecting to $foundry\n"

spawn telnet $foundry
expect {
"Password:" {
send "$password\r"
expect {
"$prompt" {
send_user "Connected"
} "failure" {
send_user "Invalid password, exiting"
set mailfail "Invalid password, exiting"
close
} timeout {
send_user "No prompt returned"
set mailfail "No prompt returned"
close
}
}
} "No route to host" {
send_user "Unable to connect to $foundry\n"
set mailfail "Unable to connect to $foundry\n"
} "Name or service not known" {
send_user "Unable to connect to $foundry\n"
set mailfail "Unable to connect to $foundry\n"
} timeout{
send_user "Timeout conncting to $foundry"
set mailfail "Timeout conncting to $foundry"
close
}
}

if { $mailfail != "" } {
exec /bin/mail -s$mailsubject $mailto << "
$mailfail"
exit
}

Step 4: Disable Paging.

Disable the "more" prompt so we can download the config.

send "enable\r"
expect {
"$prompt Switch#" {
send_user "Enabled"
} default {
send_user "Enable failed"
set mailfail "ScreenOS did not except paging option."
close
}
}

if { $mailfail != "" } {
exec /bin/mail -s$mailsubject $mailto << "
$mailfail"
exit
}

send "skip-page-display\r"
expect {
"Disable page display mode*$prompt" {
send_user "\nPaging Disabled\n"
} default {
send "ScreenOS did not except paging option.\n"
set mailfail "ScreenOS did not except paging option."
close
}
timeout {
send_user "ScreenOS did not except paging option\n"
set mailfail "ScreenOS did not except paging option."
close
}
}
if { $mailfail != "" } {
exec /bin/mail -s$mailsubject $mailto << "
$mailfail"
exit
}

Step 5: Get Config

This part of the script gets the configuration.

send_user "Downloading Configuration\n"
log_file $basedir/$log
send "show running\r"
expect {
"$prompt" {
log_file
send_user "\nConfiguration Downloaded\n"
}
timeout {
send_user "\nError during configuration download."
set mailfail "Error during configuration download."
}
}
close
if { $mailfail != "" } {
exec /bin/mail -s$mailsubject $mailto << "
$mailfail"
exit
}

Step 6: Check File Size

Check the filesize.

set filesize [file size $basedir/$log]
if { $filesize <= 512 } {
send_user "Netscreen config is too small, please investigate\n"
set mailfail "Netscreen config is too small, please investigate\n"
exec /bin/mail -s$mailsubject $mailto << "
$mailfail"
exit

}

Step 7: Cleanup

Clean up configs older than two weeks.

#Remove config older than 2 weeks
exec find $basedir -name '*config.txt*' -mtime +14

Step 8: Put It All Together

Put it all together. The script is attached, it will email on failures.

About This Instructable

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Bio: I like to tinker with just about anything, sometimes it works out in the end. Have fun looking at the projects, try tearing something open ... More »
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