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fog--fog/lib/fog/aws/auto_scaling.rb
2012-11-13 18:32:07 -08:00

286 lines
9.5 KiB
Ruby

require 'fog/aws'
module Fog
module AWS
class AutoScaling < Fog::Service
extend Fog::AWS::CredentialFetcher::ServiceMethods
class IdentifierTaken < Fog::Errors::Error; end
class ResourceInUse < Fog::Errors::Error; end
class ValidationError < Fog::Errors::Error; end
requires :aws_access_key_id, :aws_secret_access_key
recognizes :host, :path, :port, :scheme, :persistent, :region, :use_iam_profile, :aws_session_token, :aws_credentials_expire_at, :instrumentor, :instrumentor_name
request_path 'fog/aws/requests/auto_scaling'
request :create_auto_scaling_group
request :create_launch_configuration
request :create_or_update_tags
request :delete_auto_scaling_group
request :delete_launch_configuration
request :delete_notification_configuration
request :delete_policy
request :delete_scheduled_action
request :delete_tags
request :describe_adjustment_types
request :describe_auto_scaling_groups
request :describe_auto_scaling_instances
request :describe_auto_scaling_notification_types
request :describe_launch_configurations
request :describe_metric_collection_types
request :describe_notification_configurations
request :describe_policies
request :describe_scaling_activities
request :describe_scaling_process_types
request :describe_scheduled_actions
request :describe_tags
request :describe_termination_policy_types
request :disable_metrics_collection
request :enable_metrics_collection
request :execute_policy
request :put_notification_configuration
request :put_scaling_policy
request :put_scheduled_update_group_action
request :resume_processes
request :set_desired_capacity
request :set_instance_health
request :suspend_processes
request :terminate_instance_in_auto_scaling_group
request :update_auto_scaling_group
model_path 'fog/aws/models/auto_scaling'
model :activity
collection :activities
model :configuration
collection :configurations
model :group
collection :groups
model :instance
collection :instances
model :policy
collection :policies
class Real
include Fog::AWS::CredentialFetcher::ConnectionMethods
attr_accessor :region
# Initialize connection to AutoScaling
#
# ==== Notes
# options parameter must include values for :aws_access_key_id and
# :aws_secret_access_key in order to create a connection
#
# ==== Examples
# as = AutoScaling.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
# * AutoScaling object with connection to AWS.
def initialize(options={})
require 'fog/core/parser'
@use_iam_profile = options[:use_iam_profile]
setup_credentials(options)
@connection_options = options[:connection_options] || {}
@instrumentor = options[:instrumentor]
@instrumentor_name = options[:instrumentor_name] || 'fog.aws.auto_scaling'
options[:region] ||= 'us-east-1'
@region = options[:region]
@host = options[:host] || "autoscaling.#{options[:region]}.amazonaws.com"
@path = options[:path] || '/'
@port = options[:port] || 443
@persistent = options[:persistent] || false
@scheme = options[:scheme] || 'https'
@connection = Fog::Connection.new("#{@scheme}://#{@host}:#{@port}#{@path}", @persistent, @connection_options)
end
def reload
@connection.reset
end
private
def request(params)
refresh_credentials_if_expired
idempotent = params.delete(:idempotent)
parser = params.delete(:parser)
body = AWS.signed_params(
params,
{
:aws_access_key_id => @aws_access_key_id,
:aws_session_token => @aws_session_token,
:hmac => @hmac,
:host => @host,
:path => @path,
:port => @port,
:version => '2011-01-01'
}
)
if @instrumentor
@instrumentor.instrument("#{@instrumentor_name}.request", params) do
_request(body, idempotent, parser)
end
else
_request(body, idempotent, parser)
end
end
def _request(body, idempotent, parser)
begin
response = @connection.request({
:body => body,
:expects => 200,
:idempotent => idempotent,
:headers => { 'Content-Type' => 'application/x-www-form-urlencoded' },
:host => @host,
:method => 'POST',
:parser => parser
})
rescue Excon::Errors::HTTPStatusError => error
if match = error.message.match(/<Code>(.*)<\/Code>.*<Message>(.*)<\/Message>/)
case match[1]
when 'AlreadyExists'
#raise Fog::AWS::AutoScaling::IdentifierTaken.new(match[2])
raise Fog::AWS::AutoScaling::IdentifierTaken.slurp(error, match[2])
when 'ResourceInUse'
raise Fog::AWS::AutoScaling::ResourceInUse.slurp(error, match[2])
when 'ValidationError'
raise Fog::AWS::AutoScaling::ValidationError.slurp(error, match[2])
else
raise Fog::Compute::AWS::Error.slurp(error, "#{match[1]} => #{match[2]}")
end
else
raise
end
end
response
end
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('sha256', @aws_secret_access_key)
end
end
class Mock
include Fog::AWS::CredentialFetcher::ConnectionMethods
attr_accessor :region
def self.data
@data ||= Hash.new do |hash, region|
owner_id = Fog::AWS::Mock.owner_id
hash[region] = Hash.new do |region_hash, key|
region_hash[key] = {
:adjustment_types => [
'ChangeInCapacity',
'ExactCapacity',
'PercentChangeInCapacity'
],
:auto_scaling_groups => {},
:scaling_policies => {},
:health_states => [
'Healthy',
'Unhealthy'
],
:launch_configurations => {},
:metric_collection_types => {
:granularities => [
'1Minute'
],
:metrics => [
'GroupMinSize',
'GroupMaxSize',
'GroupDesiredCapacity',
'GroupInServiceInstances',
'GroupPendingInstances',
'GroupTerminatingInstances',
'GroupTotalInstances'
]
},
:notification_configurations => {},
:notification_types => [
'autoscaling:EC2_INSTANCE_LAUNCH',
'autoscaling:EC2_INSTANCE_LAUNCH_ERROR',
'autoscaling:EC2_INSTANCE_TERMINATE',
'autoscaling:EC2_INSTANCE_TERMINATE_ERROR',
'autoscaling:TEST_NOTIFICATION'
],
:owner_id => owner_id,
:process_types => [
'AZRebalance',
'AddToLoadBalancer',
'AlarmNotification',
'HealthCheck',
'Launch',
'ReplaceUnhealthy',
'ScheduledActions',
'Terminate'
],
:termination_policy_types => [
'ClosestToNextInstanceHour',
'Default',
'NewestInstance',
'OldestInstance',
'OldestLaunchConfiguration'
]
}
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] || 'us-east-1'
unless ['ap-northeast-1', 'ap-southeast-1', 'ap-southeast-2', 'eu-west-1', 'sa-east-1', 'us-east-1', 'us-west-1', 'us-west-2'].include?(@region)
raise ArgumentError, "Unknown region: #{@region.inspect}"
end
end
def region_data
self.class.data[@region]
end
def data
self.region_data[@aws_access_key_id]
end
def reset_data
self.region_data.delete(@aws_access_key_id)
end
def setup_credentials(options)
@aws_access_key_id = options[:aws_access_key_id]
end
end
end
end
end