This gist explains how to use access rules with Cloud Load Balancers

load_balancer_access_rules.md

#Cloud Load Balancers Access Rules

This document describes the access rules for cloud load balancers.

Create Service

Using a US-based account:

service = Fog::Rackspace::LoadBalancers.new({ :rackspace_username => RACKSPACE_USER_NAME, # Your Rackspace Username :rackspace_api_key => RACKSPACE_API, # Your Rackspace API key :rackspace_region => :ord, # Defaults to :dfw :connection_options => {} # Optional })

Using a UK-based account:

service = Fog::Rackspace::LoadBalancers.new({
	:rackspace_username  => RACKSPACE_USER_NAME,        # Your Rackspace Username
	:rackspace_api_key   => RACKSPACE_API,              # Your Rackspace API key
	:rackspace_auth_url  => Fog::Rackspace::UK_AUTH_ENDPOINT,
	:rackspace_region    => :lon,
	:connection_options  => {}                          # Optional
})

To learn more about obtaining cloud credentials refer to the Getting Started with Fog and the Rackspace Open Cloud document.

List Access Rules

To list access rules for a load balancer lb execute the following:

lb.access_rules

This returns a collection of Fog::Rackspace::LoadBalancers::AccessRule models:

 <Fog::Rackspace::LoadBalancers::AccessRules
[
  <Fog::Rackspace::LoadBalancers::AccessRule
    id=39011,
    address="10.10.0.15",
    type="ALLOW"
  >,
  <Fog::Rackspace::LoadBalancers::AccessRule
    id=39013,
    address="10.10.1.0/24",
    type="ALLOW"
  >
]>

Creating Access Rule

Cloud Load balancers will allow to you to create ALLOW or DENY rules by IP Address or by CIDR.

To allow 10.10.1.1 you would execute the following:

lb.access_rules.create :address => 10.10.1.1, :type => "ALLOW"

To deny IP range 172.156.1.0 - 172.156.1.255 you would execute the following:

lb.access_rules.create :address => '172.156.1.0/24', :type => "DENY"

Note: ALLOW and DENY must be in all capitals or the service will raise a Fog::Rackspace::LoadBalancers::BadRequest exception.

Deleting Rules

To delete a specific role you can execute the following:

rule.destroy

To remove all rules from the load balancer execute the following:

service.delete_all_access_rules(lb.id)

Markdown confuses me.

Why, for example, isn't the example for the U.S. wrapped in a nice grey border?
Under "Using a US-based account:" you have a regular old paragraph.
Under "Using a UK-based account:" you have a nice "code block".

I took a stare at the markdown, and it looks the SAME. Arrgh!

EDIT: there IS a difference - the first para isn't indented a full tabstop. Hope this helps!
-pbr.

Sounds like you figured it out, the Gray code block shows up when the line is indented.

You should checkout http://mouapp.com/. I use it to create my markdown.