cookbook-nat

Cookbook to set up a non CentOS NAT instance for AWS VPCs.

This is an opiniated cookbook and makes a bunch of assumptions about how your NAT instance and VPC is set up so it may not work for your needs.

It is assumed that:

• There will be one NAT instance per AZ
• Your private subnets have a network tag with the value private
• Your route tables for private subnets have a network tag with the value private

This way NAT instances can be placed in an AutoScaling group. When they come up a simple Chef run can update the relevant routes.

Requirements

Only tested on Ubuntu 14.04, but should work on earlier versions. Depends on our aws cookbook.

Recipes

nat::default

Runs the aws, network and hints recipes.

Attributes

nat::default

Key	Type	Description
["nat"]["cidr"]	String	Source IP range to masquerade. Defaults to 10.10.0.0/16

Usage

Just include nat in your node's run_list:

{
  "run_list": [
    "recipe[nat]"
  ]
}