Google Cloud DNS Puppet Module

Table of Contents

1. Module Description - What the module does and why it is useful
2. Setup - The basics of getting started with Google Cloud DNS
3. Usage - Configuration options and additional functionality
4. Reference - An under-the-hood peek at what the module is doing and how
5. Limitations - OS compatibility, etc.
6. Development - Guide for contributing to the module

Module Description

This Puppet module manages the resource of Google Cloud DNS. You can manage its resources using standard Puppet DSL and the module will, under the hood, ensure the state described will be reflected in the Google Cloud Platform resources.

Setup

To install this module on your Puppet Master (or Puppet Client/Agent), use the Puppet module installer:

puppet module install google-gdns

Optionally you can install support to all Google Cloud Platform products at once by installing our "bundle" google-cloud module:

puppet module install google-cloud

Since this module depends on the googleauth and google-api-client gems, you will also need to install those, with

/opt/puppetlabs/puppet/bin/gem install googleauth google-api-client

If you prefer, you could also add the following to your puppet manifest:

	package { [
			'googleauth',
			'google-api-client',
		]:
			ensure   => present,
			provider => puppet_gem,
	}

Usage

Credentials

All Google Cloud Platform modules use an unified authentication mechanism, provided by the google-gauth module. Don't worry, it is automatically installed when you install this module.

gauth_credential { 'mycred':
  path     => $cred_path, # e.g. '/home/nelsonjr/my_account.json'
  provider => serviceaccount,
  scopes   => [
    'https://www.googleapis.com/auth/ndev.clouddns.readwrite',
  ],
}

Please refer to the google-gauth module for further requirements, i.e. required gems.

Examples

gdns_managed_zone

gdns_managed_zone { 'id-for-testzone-3-com':
  ensure      => present,
  name        => 'testzone-3-com',
  dns_name    => 'test.somewild-example.com.',
  description => 'Test Example Zone',
  project     => $project, # e.g. 'my-test-project'
  credential  => 'mycred',
}

gdns_project

gdns_project { 'google.com:graphite-playground':
  credential                         => 'mycred',
  quota_managed_zones                => 10000,
  quota_total_rrdata_size_per_change => 100000,
}

gdns_resource_record_set

gdns_managed_zone { 'some-managed-zone':
  ensure      => present,
  name        => 'testzone-4-com',
  dns_name    => 'testzone-4.com.',
  description => 'Test Example Zone',
  project     => $project, # e.g. 'my-test-project'
  credential  => 'mycred',
}

gdns_resource_record_set { 'www.testzone-4.com.':
  ensure       => present,
  managed_zone => 'some-managed-zone',
  type         => 'A',
  ttl          => 600,
  target       => [
    '10.1.2.3',
    '40.5.6.7',
    '80.9.10.11'
  ],
  project      => $project, # e.g. 'my-test-project'
  credential   => 'mycred',
}

gdns_resource_record_set { 'sites.testzone-4.com.':
  ensure       => present,
  managed_zone => 'some-managed-zone',
  type         => 'CNAME',
  target       => 'www.testzone-4.com.',
  project      => $project, # e.g. 'my-test-project'
  credential   => 'mycred',
}

gdns_resource_record_set { 'deleteme.testzone-4.com.':
  ensure       => absent,
  managed_zone => 'some-managed-zone',
  type         => 'A',
  project      => $project, # e.g. 'my-test-project'
  credential   => 'mycred',
}

Classes

Public classes

• gdns_managed_zone: A zone is a subtree of the DNS namespace under one administrative responsibility. A ManagedZone is a resource that represents a DNS zone hosted by the Cloud DNS service.
• gdns_project: A project resource. The project is a top level container for resources including Cloud DNS ManagedZones.
• gdns_resource_record_set: A single DNS record that exists on a domain name (i.e. in a managed zone). This record defines the information about the domain and where the domain / subdomains direct to. The record will include the domain/subdomain name, a type (i.e. A, AAA, CAA, MX, CNAME, NS, etc)

About output only properties

Some fields are output-only. It means you cannot set them because they are provided by the Google Cloud Platform. Yet they are still useful to ensure the value the API is assigning (or has assigned in the past) is still the value you expect.

For example in a DNS the name servers are assigned by the Google Cloud DNS service. Checking these values once created is useful to make sure your upstream and/or root DNS masters are in sync. Or if you decide to use the object ID, e.g. the VM unique ID, for billing purposes. If the VM gets deleted and recreated it will have a different ID, despite the name being the same. If that detail is important to you you can verify that the ID of the object did not change by asserting it in the manifest.

Parameters

gdns_managed_zone

A zone is a subtree of the DNS namespace under one administrative responsibility. A ManagedZone is a resource that represents a DNS zone hosted by the Cloud DNS service.

Example

gdns_managed_zone { 'id-for-testzone-3-com':
  ensure      => present,
  name        => 'testzone-3-com',
  dns_name    => 'test.somewild-example.com.',
  description => 'Test Example Zone',
  project     => $project, # e.g. 'my-test-project'
  credential  => 'mycred',
}

Reference

gdns_managed_zone { 'id-of-resource':
  creation_time   => time,
  description     => string,
  dns_name        => string,
  id              => integer,
  name            => string,
  name_server_set => [
    string,
    ...
  ],
  name_servers    => [
    string,
    ...
  ],
  project         => string,
  credential      => reference to gauth_credential,
}

description

A mutable string of at most 1024 characters associated with this resource for the user's convenience. Has no effect on the managed zone's function.

dns_name

The DNS name of this managed zone, for instance "example.com.".

name

Required. User assigned name for this resource. Must be unique within the project.

name_server_set

Optionally specifies the NameServerSet for this ManagedZone. A NameServerSet is a set of DNS name servers that all host the same ManagedZones. Most users will leave this field unset.

Output-only properties

• id: Output only. Unique identifier for the resource; defined by the server.

• name_servers: Output only. Delegate your managed_zone to these virtual name servers; defined by the server

• creation_time: Output only. The time that this resource was created on the server. This is in RFC3339 text format.

gdns_project

A project resource. The project is a top level container for resources including Cloud DNS ManagedZones.

Example

gdns_project { 'google.com:graphite-playground':
  credential                         => 'mycred',
  quota_managed_zones                => 10000,
  quota_total_rrdata_size_per_change => 100000,
}

Reference

gdns_project { 'id-of-resource':
  number     => integer,
  quota      => {
    managed_zones                => integer,
    resource_records_per_rrset   => integer,
    rrset_additions_per_change   => integer,
    rrset_deletions_per_change   => integer,
    rrsets_per_managed_zone      => integer,
    total_rrdata_size_per_change => integer,
  },
  project    => string,
  credential => reference to gauth_credential,
}

Output-only properties

• number: Output only. Unique numeric identifier for the resource; defined by the server.

• quota: Output only. Quota allowed in project

quota/managed_zones

Output only. Maximum allowed number of managed zones in the project.

quota/resource_records_per_rrset

Output only. Maximum allowed number of ResourceRecords per ResourceRecordSet.

quota/rrset_additions_per_change

Output only. Maximum allowed number of ResourceRecordSets to add per ChangesCreateRequest.

quota/rrset_deletions_per_change

Output only. Maximum allowed number of ResourceRecordSets to delete per ChangesCreateRequest.

quota/rrsets_per_managed_zone

Output only. Maximum allowed number of ResourceRecordSets per zone in the project.

quota/total_rrdata_size_per_change

Output only. Maximum allowed size for total rrdata in one ChangesCreateRequest in bytes.

gdns_resource_record_set

A single DNS record that exists on a domain name (i.e. in a managed zone). This record defines the information about the domain and where the domain / subdomains direct to.

The record will include the domain/subdomain name, a type (i.e. A, AAA, CAA, MX, CNAME, NS, etc)

Example

gdns_managed_zone { 'some-managed-zone':
  ensure      => present,
  name        => 'testzone-4-com',
  dns_name    => 'testzone-4.com.',
  description => 'Test Example Zone',
  project     => $project, # e.g. 'my-test-project'
  credential  => 'mycred',
}

gdns_resource_record_set { 'www.testzone-4.com.':
  ensure       => present,
  managed_zone => 'some-managed-zone',
  type         => 'A',
  ttl          => 600,
  target       => [
    '10.1.2.3',
    '40.5.6.7',
    '80.9.10.11'
  ],
  project      => $project, # e.g. 'my-test-project'
  credential   => 'mycred',
}

gdns_resource_record_set { 'sites.testzone-4.com.':
  ensure       => present,
  managed_zone => 'some-managed-zone',
  type         => 'CNAME',
  target       => 'www.testzone-4.com.',
  project      => $project, # e.g. 'my-test-project'
  credential   => 'mycred',
}

gdns_resource_record_set { 'deleteme.testzone-4.com.':
  ensure       => absent,
  managed_zone => 'some-managed-zone',
  type         => 'A',
  project      => $project, # e.g. 'my-test-project'
  credential   => 'mycred',
}

Reference

gdns_resource_record_set { 'id-of-resource':
  managed_zone => reference to gdns_managed_zone,
  name         => string,
  target       => [
    string,
    ...
  ],
  ttl          => integer,
  type         => 'A', 'AAAA', 'CAA', 'CNAME', 'MX', 'NAPTR', 'NS', 'PTR', 'SOA', 'SPF', 'SRV' or 'TXT',
  project      => string,
  credential   => reference to gauth_credential,
}

name

Required. For example, www.example.com.

type

Required. One of valid DNS resource types.

ttl

Number of seconds that this ResourceRecordSet can be cached by resolvers.

target

As defined in RFC 1035 (section 5) and RFC 1034 (section 3.6.1)

managed_zone

Required. Identifies the managed zone addressed by this request. Can be the managed zone name or id.

Limitations

This module has been tested on:

• RedHat 6, 7
• CentOS 6, 7
• Debian 7, 8
• Ubuntu 12.04, 14.04, 16.04, 16.10
• SLES 11-sp4, 12-sp2
• openSUSE 13
• Windows Server 2008 R2, 2012 R2, 2012 R2 Core, 2016 R2, 2016 R2 Core

Testing on other platforms has been minimal and cannot be guaranteed.

Development

Automatically Generated Files

Some files in this package are automatically generated by Magic Modules.

We use a code compiler to produce this module in order to avoid repetitive tasks and improve code quality. This means all Google Cloud Platform Puppet modules use the same underlying authentication, logic, test generation, style checks, etc.

Learn more about the way to change autogenerated files by reading the CONTRIBUTING.md file.

Contributing

Contributions to this library are always welcome and highly encouraged.

See CONTRIBUTING.md for more information on how to get started.

Running tests

This project contains tests for rspec, rspec-puppet and rubocop to verify functionality. For detailed information on using these tools, please see their respective documentation.

Testing quickstart: Ruby > 2.0.0

gem install bundler
bundle install
bundle exec rspec
bundle exec rubocop

Debugging Tests

In case you need to debug tests in this module you can set the following variables to increase verbose output:

Variable	Side Effect
PUPPET_HTTP_VERBOSE=1	Prints network access information by Puppet provier.
PUPPET_HTTP_DEBUG=1	Prints the payload of network calls being made.
GOOGLE_HTTP_VERBOSE=1	Prints debug related to the network calls being made.
GOOGLE_HTTP_DEBUG=1	Prints the payload of network calls being made.

During test runs (using rspec) you can also set:

Variable	Side Effect
RSPEC_DEBUG=1	Prints debug related to the tests being run.
RSPEC_HTTP_VERBOSE=1	Prints network expectations and access.