lib/fog/aws/dns.rb
module Fog
module AWS
class DNS < Fog::Service
extend Fog::AWS::CredentialFetcher::ServiceMethods
requires :aws_access_key_id, :aws_secret_access_key
recognizes :host, :path, :port, :scheme, :version, :persistent, :use_iam_profile, :aws_session_token, :aws_credentials_expire_at, :instrumentor, :instrumentor_name, :region, :sts_endpoint
model_path 'fog/aws/models/dns'
model :record
collection :records
model :zone
collection :zones
request_path 'fog/aws/requests/dns'
request :create_health_check
request :create_hosted_zone
request :delete_health_check
request :get_health_check
request :get_hosted_zone
request :delete_hosted_zone
request :list_health_checks
request :list_hosted_zones
request :change_resource_record_sets
request :list_resource_record_sets
request :get_change
class Mock
include Fog::AWS::CredentialFetcher::ConnectionMethods
def self.data
@data ||= Hash.new do |hash, region|
hash[region] = Hash.new do |region_hash, key|
region_hash[key] = {
:buckets => {},
:limits => {
:duplicate_domains => 5
},
:zones => {},
:changes => {}
}
end
end
end
def self.reset
@data = nil
end
def initialize(options={})
@use_iam_profile = options[:use_iam_profile]
setup_credentials(options)
@region = options[:region]
end
def data
self.class.data[@region][@aws_access_key_id]
end
def reset_data
self.class.data[@region].delete(@aws_access_key_id)
end
def signature(params)
"foo"
end
def setup_credentials(options)
@aws_access_key_id = options[:aws_access_key_id]
end
end
class Real
include Fog::AWS::CredentialFetcher::ConnectionMethods
# Initialize connection to Route 53 DNS service
#
# ==== Notes
# options parameter must include values for :aws_access_key_id and
# :aws_secret_access_key in order to create a connection
#
# ==== Examples
# dns = Fog::AWS::DNS.new(
# :aws_access_key_id => your_aws_access_key_id,
# :aws_secret_access_key => your_aws_secret_access_key
# )
#
# ==== Parameters
# * options<~Hash> - config arguments for connection. Defaults to {}.
#
# ==== Returns
# * dns object with connection to aws.
def initialize(options={})
@use_iam_profile = options[:use_iam_profile]
setup_credentials(options)
@instrumentor = options[:instrumentor]
@instrumentor_name = options[:instrumentor_name] || 'fog.aws.dns'
@connection_options = options[:connection_options] || {}
@host = options[:host] || 'route53.amazonaws.com'
@path = options[:path] || '/'
@persistent = options.fetch(:persistent, true)
@port = options[:port] || 443
@scheme = options[:scheme] || 'https'
@version = options[:version] || '2013-04-01'
@connection = Fog::XML::Connection.new("#{@scheme}://#{@host}:#{@port}#{@path}", @persistent, @connection_options)
end
def reload
@connection.reset
end
private
def setup_credentials(options)
@aws_access_key_id = options[:aws_access_key_id]
@aws_secret_access_key = options[:aws_secret_access_key]
@aws_session_token = options[:aws_session_token]
@aws_credentials_expire_at = options[:aws_credentials_expire_at]
@hmac = Fog::HMAC.new('sha1', @aws_secret_access_key)
end
def request(params, &block)
refresh_credentials_if_expired
params[:headers] ||= {}
params[:headers]['Date'] = Fog::Time.now.to_date_header
params[:headers]['x-amz-security-token'] = @aws_session_token if @aws_session_token
params[:headers]['X-Amzn-Authorization'] = "AWS3-HTTPS AWSAccessKeyId=#{@aws_access_key_id},Algorithm=HmacSHA1,Signature=#{signature(params)}"
params[:path] = "/#{@version}/#{params[:path]}"
if @instrumentor
@instrumentor.instrument("#{@instrumentor_name}.request", params) do
_request(params, &block)
end
else
_request(params, &block)
end
end
def _request(params, &block)
@connection.request(params, &block)
rescue Excon::Errors::HTTPStatusError => error
match = Fog::AWS::Errors.match_error(error)
if match.empty?
raise
else
raise case match[:code]
when 'NoSuchHostedZone', 'NoSuchChange' then
Fog::AWS::DNS::NotFound.slurp(error, match[:message])
else
Fog::AWS::DNS::Error.slurp(error, "#{match[:code]} => #{match[:message]}")
end
end
end
def signature(params)
string_to_sign = params[:headers]['Date']
signed_string = @hmac.sign(string_to_sign)
Base64.encode64(signed_string).chomp!
end
end
def self.hosted_zone_for_alias_target(dns_name)
hosted_zones = if dns_name.match(/^dualstack\./)
elb_dualstack_hosted_zone_mapping
else
elb_hosted_zone_mapping
end
Hash[hosted_zones.select { |k, _|
dns_name =~ /\A.+\.#{k}\.elb\.amazonaws\.com\.?\z/
}].values.last
end
def self.elb_hosted_zone_mapping
@elb_hosted_zone_mapping ||= {
"ap-northeast-1" => "Z2YN17T5R711GT",
"ap-southeast-1" => "Z1WI8VXHPB1R38",
"ap-southeast-2" => "Z2999QAZ9SRTIC",
"eu-west-1" => "Z3NF1Z3NOM5OY2",
"eu-central-1" => "Z215JYRZR1TBD5",
"sa-east-1" => "Z2ES78Y61JGQKS",
"us-east-1" => "Z3DZXE0Q79N41H",
"us-west-1" => "Z1M58G0W56PQJA",
"us-west-2" => "Z33MTJ483KN6FU",
}
end
# See https://docs.aws.amazon.com/general/latest/gr/rande.html#elb_region
# This needs to be kept in sync manually sadly for now as seemingly this data is not available via an API
def self.elb_dualstack_hosted_zone_mapping
@elb_dualstack_hosted_zone_mapping ||= {
"ap-northeast-1" => "Z14GRHDCWA56QT",
"ap-northeast-2" => "ZWKZPGTI48KDX",
"ap-northeast-3" => "Z5LXEXXYW11ES",
"ap-south-1" => "ZP97RAFLXTNZK",
"ap-southeast-1" => "Z1LMS91P8CMLE5",
"ap-southeast-2" => "Z1GM3OXH4ZPM65",
"ca-central-1" => "ZQSVJUPU6J1EY",
"eu-central-1" => "Z215JYRZR1TBD5",
"eu-west-1" => "Z32O12XQLNTSW2",
"eu-west-2" => "ZHURV8PSTC4K8",
"eu-west-3" => "Z3Q77PNBQS71R4",
"us-east-1" => "Z35SXDOTRQ7X7K",
"us-east-2" => "Z3AADJGX6KTTL2",
"us-west-1" => "Z368ELLRRE2KJ0",
"us-west-2" => "Z1H1FL5HABSF5",
"sa-east-1" => "Z2P70J7HTTTPLU",
}
end
# Returns the xml request for a given changeset
def self.change_resource_record_sets_data(zone_id, change_batch, version, options = {})
# AWS methods return zone_ids that looks like '/hostedzone/id'. Let the caller either use
# that form or just the actual id (which is what this request needs)
zone_id = zone_id.sub('/hostedzone/', '')
optional_tags = ''
options.each do |option, value|
case option
when :comment
optional_tags += "<Comment>#{value}</Comment>"
end
end
#build XML
if change_batch.count > 0
changes = "<ChangeBatch>#{optional_tags}<Changes>"
change_batch.each do |change_item|
action_tag = %Q{<Action>#{change_item[:action]}</Action>}
name_tag = %Q{<Name>#{change_item[:name]}</Name>}
type_tag = %Q{<Type>#{change_item[:type]}</Type>}
# TTL must be omitted if using an alias record
ttl_tag = ''
ttl_tag += %Q{<TTL>#{change_item[:ttl]}</TTL>} unless change_item[:alias_target]
weight_tag = ''
set_identifier_tag = ''
region_tag = ''
if change_item[:set_identifier]
set_identifier_tag += %Q{<SetIdentifier>#{change_item[:set_identifier]}</SetIdentifier>}
if change_item[:weight] # Weighted Record
weight_tag += %Q{<Weight>#{change_item[:weight]}</Weight>}
elsif change_item[:region] # Latency record
region_tag += %Q{<Region>#{change_item[:region]}</Region>}
end
end
failover_tag = if change_item[:failover]
%Q{<Failover>#{change_item[:failover]}</Failover>}
end
geolocation_tag = if change_item[:geo_location]
xml_geo = change_item[:geo_location].map { |k,v| "<#{k}>#{v}</#{k}>" }.join
%Q{<GeoLocation>#{xml_geo}</GeoLocation>}
end
resource_records = change_item[:resource_records] || []
resource_record_tags = ''
resource_records.each do |record|
resource_record_tags += %Q{<ResourceRecord><Value>#{record}</Value></ResourceRecord>}
end
# ResourceRecords must be omitted if using an alias record
resource_tag = ''
resource_tag += %Q{<ResourceRecords>#{resource_record_tags}</ResourceRecords>} if resource_records.any?
alias_target_tag = ''
if change_item[:alias_target]
# Accept either underscore or camel case for hash keys.
dns_name = change_item[:alias_target][:dns_name] || change_item[:alias_target][:DNSName]
hosted_zone_id = change_item[:alias_target][:hosted_zone_id] || change_item[:alias_target][:HostedZoneId] || AWS.hosted_zone_for_alias_target(dns_name)
evaluate_target_health = change_item[:alias_target][:evaluate_target_health] || change_item[:alias_target][:EvaluateTargetHealth] || false
evaluate_target_health_xml = !evaluate_target_health.nil? ? %Q{<EvaluateTargetHealth>#{evaluate_target_health}</EvaluateTargetHealth>} : ''
alias_target_tag += %Q{<AliasTarget><HostedZoneId>#{hosted_zone_id}</HostedZoneId><DNSName>#{dns_name}</DNSName>#{evaluate_target_health_xml}</AliasTarget>}
end
health_check_id_tag = if change_item[:health_check_id]
%Q{<HealthCheckId>#{change_item[:health_check_id]}</HealthCheckId>}
end
change_tags = %Q{<Change>#{action_tag}<ResourceRecordSet>#{name_tag}#{type_tag}#{set_identifier_tag}#{weight_tag}#{region_tag}#{failover_tag}#{geolocation_tag}#{ttl_tag}#{resource_tag}#{alias_target_tag}#{health_check_id_tag}</ResourceRecordSet></Change>}
changes += change_tags
end
changes += '</Changes></ChangeBatch>'
end
%Q{<?xml version="1.0" encoding="UTF-8"?><ChangeResourceRecordSetsRequest xmlns="https://route53.amazonaws.com/doc/#{version}/">#{changes}</ChangeResourceRecordSetsRequest>}
end
end
end
# @deprecated
module DNS
# @deprecated
class AWS < Fog::AWS::DNS
# @deprecated
# @overrides Fog::Service.new (from the fog-core gem)
def self.new(*)
Fog::Logger.deprecation 'Fog::DNS::AWS is deprecated, please use Fog::AWS::DNS.'
super
end
end
end
end