How to Control ELB with aws-sdk

gistfile1.rb

require 'aws-sdk'

AWS.config(:access_key_id => ACCESS_KEY, :secret_access_key => SECRET_KEY, :ec2_endpoint => REGION, :elb_endpoint => ELB_REGION)

@elb_client = AWS::ELB.new().client

# show description
@elb_client.describe_load_balancers({load_balancer_names: ["ELB_NAME"]})

# get a lb
lb = AWS::ELB.new.load_balancers["elb-test"]

#get listeners
listeners = lb.listeners

# create new listener
listeners.create(
  :port => 8000,
  :protocol => :tcp, # or :HTTP(s),:SSL
  :instance_port => 8000,
  :instance_protocol => :tcp # or :HTTP(s),:SSL
)

#set policy
listeners["8000"].policy = :POLICY_NAME

# delete a listener
listeners["8000"].delete