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et_nat (12) Versions 3.1.2

Apache v2.0

Berkshelf/Librarian
Policyfile
Knife
cookbook 'et_nat', '~> 3.1.2'
cookbook 'et_nat', '~> 3.1.2', :supermarket
knife cookbook site install et_nat
knife cookbook site download et_nat
README
Dependencies
Quality

et_nat cookbook

Build Status Cookbook Version

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
  • ['nat']['yaml']['monitor_enabled']: Default value is false
  • ['nat']['search_string'] = Default value is 'run_list:recipe\[et_nat\]'

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
  • Can set up snitch-style monitoring using Cronitor
    • Specify monitor_token and monitor_opts in your YAML config to create a new Cronitor monitor
    • Specify monitor_code to use an existing Cronitor monitor
    • See the cronitor gem docs for details on what these fields expect

iptables

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

Author

Author:: EverTrue (devops@evertrue.com)

Dependent cookbooks

magic ~> 1.1
et_fog ~> 1.2

Contingent cookbooks

There are no cookbooks that are contingent upon this one.

Collaborator Number Metric
            

3.1.2 passed this metric

Contributing File Metric
            

3.1.2 failed this metric

Failure: To pass this metric, your cookbook metadata must include a source url, the source url must be in the form of https://github.com/user/repo, and your repo must contain a CONTRIBUTING.md file

Foodcritic Metric
            

3.1.2 passed this metric

License Metric
            

3.1.2 failed this metric

et_nat does not have a valid open source license.
Acceptable licenses include Apache-2.0, apachev2, Apache 2.0, MIT, mit, GPL-2.0, gplv2, GNU Public License 2.0, GPL-3.0, gplv3, GNU Public License 3.0.

No Binaries Metric
            

3.1.2 passed this metric

Publish Metric
            

3.1.2 passed this metric

Supported Platforms Metric
            

3.1.2 failed this metric

et_nat should declare what platform(s) it supports.

Testing File Metric
            

3.1.2 failed this metric

Failure: To pass this metric, your cookbook metadata must include a source url, the source url must be in the form of https://github.com/user/repo, and your repo must contain a TESTING.md file

Version Tag Metric
            

3.1.2 failed this metric

Failure: To pass this metric, your cookbook metadata must include a source url, the source url must be in the form of https://github.com/user/repo, and your repo must include a tag that matches this cookbook version number