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et_nat (12) Versions 2.0.3

Apache v2.0

Policyfile
Berkshelf
Knife
cookbook 'et_nat', '= 2.0.3', :supermarket
cookbook 'et_nat', '= 2.0.3'
knife supermarket install et_nat
knife supermarket download et_nat
README
Dependencies
Quality 0%

et_nat cookbook

A cookbook to provide a NAT for an EC2 VPC (with HA if desired)

Requirements

  • An EC2 VPC
  • 1 VPC node for a simple NAT or 3 VPC nodes for HA

Usage

When creating instances using this cookbook, in order to assign a public IP address in your VPC, you’ll want to use a command like this:

knife ec2 server create \
    -E prod \
    -N prod-nat \
    -s subnet-xxxxxxxx \
    -f c3.large \
    -g sg-xxxxxxxx \
    -r "recipe[xyz]" \
    --iam-profile nat-ha \
    --associate-public-ip

The --associate-public-ip is especially crucial, as otherwise, the instance will be unable to connect out, nor will it function as a NAT.

Network Configuration

Attributes

  • ['nat']['yaml']['mocking']: Default value is true

Recipes

default

  • Installs Fog for making AWS API calls
  • Uses the other two recipes in this cookbook to set up the NAT mechanisms

ha

  • Provides mechanisms for maintaining high availability of a cluster of NAT instances using Chef Search & a NAT monitor script

iptables

  • Does the bulk of the work to set up the NAT

Author

Author:: Eric Herot (eric.herot@evertrue.com)

Dependent cookbooks

et_fog >= 0.0.0
magic ~> 1.1

Contingent cookbooks

There are no cookbooks that are contingent upon this one.

Foodcritic Metric
            

2.0.3 failed this metric

FC003: Check whether you are running with chef server before using server-specific features: /tmp/cook/97b631f822b8ad264bcd33ef/et_nat/recipes/ha.rb:1