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fog--fog/lib/fog/aws/cloud_watch.rb
2011-12-15 12:37:31 +00:00

132 lines
4.2 KiB
Ruby

require File.expand_path(File.join(File.dirname(__FILE__), '..', 'aws'))
module Fog
module AWS
class CloudWatch < Fog::Service
requires :aws_access_key_id, :aws_secret_access_key
recognizes :region, :host, :path, :port, :scheme, :persistent
request_path 'fog/aws/requests/cloud_watch'
request :list_metrics
request :get_metric_statistics
request :put_metric_data
request :describe_alarms
request :put_metric_alarm
request :delete_alarms
request :describe_alarm_history
request :enable_alarm_actions
request :disable_alarm_actions
request :describe_alarms_for_metric
request :set_alarm_state
model_path 'fog/aws/models/cloud_watch'
model :metric
collection :metrics
model :metric_statistic
collection :metric_statistics
model :alarm_datum
collection :alarm_data
model :alarm_history
collection :alarm_histories
model :alarm
collection :alarms
class Mock
def initialize(options={})
end
end
class Real
# Initialize connection to Cloudwatch
#
# ==== Notes
# options parameter must include values for :aws_access_key_id and
# :aws_secret_access_key in order to create a connection
#
# ==== Examples
# elb = CloudWatch.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 {}.
# * region<~String> - optional region to use, in ['eu-west-1', 'us-east-1', 'us-west-1', 'us-west-2', 'ap-southeast-1', 'ap-northeast-1']
#
# ==== Returns
# * CloudWatch object with connection to AWS.
def initialize(options={})
@aws_access_key_id = options[:aws_access_key_id]
@aws_secret_access_key = options[:aws_secret_access_key]
@hmac = Fog::HMAC.new('sha256', @aws_secret_access_key)
@connection_options = options[:connection_options] || {}
options[:region] ||= 'us-east-1'
@host = options[:host] || case options[:region]
when 'ap-northeast-1'
'monitoring.ap-northeast-1.amazonaws.com'
when 'ap-southeast-1'
'monitoring.ap-southeast-1.amazonaws.com'
when 'eu-west-1'
'monitoring.eu-west-1.amazonaws.com'
when 'us-east-1'
'monitoring.us-east-1.amazonaws.com'
when 'us-west-1'
'monitoring.us-west-1.amazonaws.com'
when 'us-west-2'
'monitoring.us-west-2.amazonaws.com'
when 'sa-east-1'
'monitoring.sa-east-1.amazonaws.com'
else
raise ArgumentError, "Unknown region: #{options[:region].inspect}"
end
@path = options[:path] || '/'
@persistent = options[:persistent] || false
@port = options[:port] || 443
@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)
idempotent = params.delete(:idempotent)
parser = params.delete(:parser)
body = AWS.signed_params(
params,
{
:aws_access_key_id => @aws_access_key_id,
:hmac => @hmac,
:host => @host,
:path => @path,
:port => @port,
:version => '2010-08-01'
}
)
response = @connection.request({
:body => body,
:expects => 200,
:headers => { 'Content-Type' => 'application/x-www-form-urlencoded' },
:idempotent => idempotent,
:host => @host,
:method => 'POST',
:parser => parser
})
end
end
end
end
end