Support the dns_powerdns plugin

closes GH-189

.fixtures.yml

@@ -4,6 +4,7 @@ fixtures:
     dhcp:     'git://github.com/theforeman/puppet-dhcp'
     dns:      'git://github.com/theforeman/puppet-dns'
     foreman:  'git://github.com/theforeman/puppet-foreman'
+    mysql:    'git://github.com/puppetlabs/puppetlabs-mysql.git'
     puppet:   'git://github.com/theforeman/puppet-puppet'
     stdlib:   'git://github.com/puppetlabs/puppetlabs-stdlib.git'
     tftp:     'git://github.com/theforeman/puppet-tftp'

README.md

@@ -5,6 +5,21 @@ interact with, e.g. DNS, DHCP and Puppet and TFTP.
 
 Part of the Foreman installer: http://github.com/theforeman/foreman-installer
 
+## PowerDNS support
+
+To use the PowerDNS plugin, the following variables need to be set on the main
+`foreman_proxy` class.
+
+    $dns          => true
+    $dns_managed  => false
+    $dns_provider => 'dns_powerdns'
+
+Then you also need to include `foreman_proxy::plugin::dns::powerdns`.
+
+The powerdns plugin can optionally manage the database. If that's used, then
+the puppetlabs-mysql module must be added to the modulepath, otherwise it's not
+required.
+
 ## Compatibility
 
 This module only supports Smart Proxy 1.6 or higher as of version 2.0, as the

manifests/plugin/dns/powerdns.pp

@@ -0,0 +1,46 @@
+# = Foreman Proxy PowerDNS DNS plugin
+#
+# This class installs the PowerDNS DNS plugin for Foreman proxy
+#
+# === Parameters:
+#
+# $mysql_hostname::  MySQL server hostname
+#
+# $mysql_username::  MySQL server username
+#
+# $mysql_password::  MySQL server password
+#
+# $mysql_database::  MySQL server database
+#
+# $manage_database:: Whether to manage the mysql database. Also includes the mysql server.
+#
+# $pdnssec::         pdnssec command to run rectify-zone with. Can be an empty string.
+#
+class foreman_proxy::plugin::dns::powerdns (
+  $mysql_hostname  = $::foreman_proxy::plugin::dns::powerdns::params::mysql_hostname,
+  $mysql_username  = $::foreman_proxy::plugin::dns::powerdns::params::mysql_username,
+  $mysql_password  = $::foreman_proxy::plugin::dns::powerdns::params::mysql_password,
+  $mysql_database  = $::foreman_proxy::plugin::dns::powerdns::params::mysql_database,
+  $manage_database = $::foreman_proxy::plugin::dns::powerdns::params::manage_database,
+  $pdnssec         = $::foreman_proxy::plugin::dns::powerdns::params::pdnssec,
+) inherits foreman_proxy::plugin::dns::powerdns::params {
+  validate_bool($manage_database)
+  validate_string($mysql_hostname, $mysql_username, $mysql_password, $mysql_database, $pdnssec)
+
+  if $manage_database {
+    include ::mysql::server
+    mysql::db { $mysql_database:
+      user     => $mysql_username,
+      password => $mysql_password,
+      host     => $mysql_hostname,
+      grant    => ['ALL'],
+    }
+  }
+
+  foreman_proxy::plugin { 'dns_powerdns':
+  } ->
+  foreman_proxy::settings_file { 'dns_powerdns':
+    module        => false,
+    template_path => 'foreman_proxy/plugin/dns_powerdns.yml.erb',
+  }
+}

manifests/plugin/dns/powerdns/params.pp

@@ -0,0 +1,8 @@
+class foreman_proxy::plugin::dns::powerdns::params {
+  $mysql_hostname  = 'localhost'
+  $mysql_username  = 'pdns'
+  $mysql_password  = cache_data('smart_proxy_dns_powerdns_password', random_password(16))
+  $mysql_database  = 'pdns'
+  $manage_database = false
+  $pdnssec         = 'pdnssec'
+}

spec/classes/foreman_proxy__plugin__dns__powerdns_spec.rb

@@ -0,0 +1,72 @@
+require 'spec_helper'
+
+describe 'foreman_proxy::plugin::dns::powerdns' do
+  let :facts do
+    on_supported_os['redhat-7-x86_64']
+  end
+
+  let :pre_condition do
+    'include ::foreman_proxy'
+  end
+
+  context 'default parameters' do
+    let :params do
+      {
+        :mysql_password => 'password',
+      }
+    end
+
+    it { should compile.with_all_deps }
+
+    it 'should install the correct plugin' do
+      should contain_foreman_proxy__plugin('dns_powerdns')
+    end
+
+    it 'should contain the correct configuration' do
+      verify_exact_contents(catalogue, '/etc/foreman-proxy/settings.d/dns_powerdns.yml', [
+        '---',
+        ':powerdns_mysql_hostname: "localhost"',
+        ':powerdns_mysql_username: "pdns"',
+        ':powerdns_mysql_password: "password"',
+        ':powerdns_mysql_database: "pdns"',
+        ':powerdns_pdnssec: "pdnssec"',
+      ])
+    end
+  end
+
+  context 'with manage_database => true' do
+    let :params do
+      {
+        :mysql_password  => 'password',
+        :manage_database => true,
+      }
+    end
+
+    it { should compile.with_all_deps }
+
+    it 'should install the correct plugin' do
+      should contain_foreman_proxy__plugin('dns_powerdns')
+    end
+
+    it 'should contain the correct configuration' do
+      verify_exact_contents(catalogue, '/etc/foreman-proxy/settings.d/dns_powerdns.yml', [
+        '---',
+        ':powerdns_mysql_hostname: "localhost"',
+        ':powerdns_mysql_username: "pdns"',
+        ':powerdns_mysql_password: "password"',
+        ':powerdns_mysql_database: "pdns"',
+        ':powerdns_pdnssec: "pdnssec"',
+      ])
+    end
+
+    it 'should manage the database' do
+      should contain_class('mysql::server')
+
+      should contain_mysql__db('pdns') \
+        .with_user('pdns') \
+        .with_password('password') \
+        .with_host('localhost') \
+        .with_grant(['ALL'])
+    end
+  end
+end

templates/plugin/dns_powerdns.yml.erb

@@ -0,0 +1,6 @@
+---
+:powerdns_mysql_hostname: "<%= scope.lookupvar('::foreman_proxy::plugin::dns::powerdns::mysql_hostname') %>"
+:powerdns_mysql_username: "<%= scope.lookupvar('::foreman_proxy::plugin::dns::powerdns::mysql_username') %>"
+:powerdns_mysql_password: "<%= scope.lookupvar('::foreman_proxy::plugin::dns::powerdns::mysql_password') %>"
+:powerdns_mysql_database: "<%= scope.lookupvar('::foreman_proxy::plugin::dns::powerdns::mysql_database') %>"
+:powerdns_pdnssec: "<%= scope.lookupvar('::foreman_proxy::plugin::dns::powerdns::pdnssec') %>"