Ruby Virtual Server and Pool Creation

Problem this snippet solves:

A simple script to add and delete both Virtual IPs and Pools in: Ruby

Code :

require 'rubygems'
require 'rest-client'
require 'json'

# define program-wide variables
BIGIP_ADDRESS = 'test-ltm-03.element.local'
BIGIP_USER = 'admin'
BIGIP_PASS = 'admin'

SLEEP_TIME = 20

VS_NAME = 'test-http-virtual_ruby'
VS_ADDRESS = '1.1.1.1'
VS_PORT = '80'

POOL_NAME = 'test-http-pool_ruby'
POOL_LB_METHOD = 'least-connections-member'
POOL_MEMBERS = [ '10.0.0.1:80', '10.0.0.2:80', '10.0.0.3:80' ]

# create/delete methods
def create_pool bigip, name, members, lb_method
# convert member format
members.collect { |member| { :kind => 'ltm:pool:members', :name => member} }

# define test pool
payload = {
:kind => 'tm:ltm:pool:poolstate',
:name => name,
:description => 'A Ruby rest-client test pool',
:loadBalancingMode => lb_method,
:monitor => 'http',
:members => members
}

bigip['ltm/pool'].post payload.to_json
end

def create_http_virtual bigip, name, address, port, pool
# define test virtual
payload = { 
:kind => 'tm:ltm:virtual:virtualstate',
:name => name,
:description => 'A Ruby rest-client test virtual server',
:destination => "#{address}:#{port}",
:mask => '255.255.255.255',
:ipProtocol => 'tcp',
:sourceAddressTranslation => { :type => 'automap' },
:profiles => [
{ :kind => 'ltm:virtual:profile', :name => 'http' }, 
{ :kind => 'ltm:virtual:profile', :name => 'tcp' }
],
:pool => pool
}

bigip['ltm/virtual'].post payload.to_json
end

def delete_pool bigip, name
url = "ltm/pool/#{name}"
bigip[url].delete
end

def delete_virtual bigip, name
url = "ltm/virtual/#{name}"
bigip[url].delete
end

# REST resource for BIG-IP that all other requests will use
bigip = RestClient::Resource.new(
"https://#{BIGIP_ADDRESS}/mgmt/tm/", 
:user => BIGIP_USER, 
:password => BIGIP_PASS, 
:headers => { :content_type => 'application/json' }
)
puts "created REST resource for BIG-IP at #{BIGIP_ADDRESS}..."

# create pool
create_pool bigip, POOL_NAME, POOL_MEMBERS, POOL_LB_METHOD
puts "created pool \"#{POOL_NAME}\" with members #{POOL_MEMBERS.join(', ')}..."

# create virtual
create_http_virtual bigip, VS_NAME, VS_ADDRESS, VS_PORT, POOL_NAME
puts "created virtual server \"#{VS_NAME}\" with destination #{VS_ADDRESS}:#{VS_PORT}..."

# sleep for a little while
puts "sleeping for #{SLEEP_TIME} seconds, check for successful creation..."
sleep SLEEP_TIME

# delete virtual
delete_virtual bigip, VS_NAME
puts "deleted virtual server \"#{VS_NAME}\"..."

# delete pool
delete_pool bigip, POOL_NAME
puts "deleted pool \"#{POOL_NAME}\"..."