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133 lines
4.2 KiB
Ruby
133 lines
4.2 KiB
Ruby
require 'fog/aws/core'
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module Fog
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module AWS
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class EMR < Fog::Service
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extend Fog::AWS::CredentialFetcher::ServiceMethods
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class IdentifierTaken < Fog::Errors::Error; end
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requires :aws_access_key_id, :aws_secret_access_key
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recognizes :region, :host, :path, :port, :scheme, :persistent, :use_iam_profile, :aws_session_token, :aws_credentials_expire_at
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request_path 'fog/aws/requests/emr'
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request :add_instance_groups
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request :add_job_flow_steps
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request :describe_job_flows
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request :modify_instance_groups
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request :run_job_flow
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request :set_termination_protection
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request :terminate_job_flows
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# model_path 'fog/aws/models/rds'
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# model :server
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# collection :servers
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# model :snapshot
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# collection :snapshots
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# model :parameter_group
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# collection :parameter_groups
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#
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# model :parameter
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# collection :parameters
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#
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# model :security_group
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# collection :security_groups
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class Mock
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def initialize(options={})
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Fog::Mock.not_implemented
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end
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end
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class Real
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include Fog::AWS::CredentialFetcher::ConnectionMethods
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# Initialize connection to EMR
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#
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# ==== Notes
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# options parameter must include values for :aws_access_key_id and
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# :aws_secret_access_key in order to create a connection
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#
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# ==== Examples
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# emr = EMR.new(
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# :aws_access_key_id => your_aws_access_key_id,
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# :aws_secret_access_key => your_aws_secret_access_key
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# )
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#
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# ==== Parameters
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# * options<~Hash> - config arguments for connection. Defaults to {}.
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# * region<~String> - optional region to use. For instance, in 'eu-west-1', 'us-east-1' and etc.
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#
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# ==== Returns
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# * EMR object with connection to AWS.
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def initialize(options={})
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@use_iam_profile = options[:use_iam_profile]
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setup_credentials(options)
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@connection_options = options[:connection_options] || {}
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options[:region] ||= 'us-east-1'
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@host = options[:host] || "elasticmapreduce.#{options[:region]}.amazonaws.com"
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@path = options[:path] || '/'
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@persistent = options[:persistent] || false
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@port = options[:port] || 443
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@scheme = options[:scheme] || 'https'
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@connection = Fog::Connection.new("#{@scheme}://#{@host}:#{@port}#{@path}", @persistent, @connection_options)
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@region = options[:region]
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end
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def reload
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@connection.reset
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end
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private
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def setup_credentials(options)
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@aws_access_key_id = options[:aws_access_key_id]
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@aws_secret_access_key = options[:aws_secret_access_key]
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@aws_session_token = options[:aws_session_token]
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@aws_credentials_expire_at = options[:aws_credentials_expire_at]
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@hmac = Fog::HMAC.new('sha256', @aws_secret_access_key)
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end
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def request(params)
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refresh_credentials_if_expired
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idempotent = params.delete(:idempotent)
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parser = params.delete(:parser)
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body = Fog::AWS.signed_params(
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params,
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{
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:aws_access_key_id => @aws_access_key_id,
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:aws_session_token => @aws_session_token,
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:hmac => @hmac,
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:host => @host,
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:path => @path,
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:port => @port,
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:version => '2009-03-31' #'2010-07-28'
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}
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)
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begin
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response = @connection.request({
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:body => body,
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:expects => 200,
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:headers => { 'Content-Type' => 'application/x-www-form-urlencoded' },
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:idempotent => idempotent,
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:method => 'POST',
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:parser => parser
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})
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rescue Excon::Errors::HTTPStatusError
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raise
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end
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response
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end
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end
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end
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end
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end
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