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Module: AWS::SNS::FromAutoScaling

Defined in:
lib/aws/sns/originators/from_auto_scaling.rb

Overview

A module to enrich Message based on it originating from AutoScaling, which have a particular subject and message payload. Parses such messages into a more rich representation.

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.applicable?(sns) ⇒ Boolean

Returns true when the SNS originates from auto-scaling

Returns:

  • (Boolean) —

    true when the SNS originates from auto-scaling



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# File 'lib/aws/sns/originators/from_auto_scaling.rb', line 26

def applicable? sns
  sns['Subject'] =~ /.*autoscaling:.*/i
end

.extended(base) ⇒ Object 



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# File 'lib/aws/sns/originators/from_auto_scaling.rb', line 21

def self.extended base
  base.origin = :autoscaling
end

Instance Method Details

#body ⇒ Object 



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# File 'lib/aws/sns/originators/from_auto_scaling.rb', line 32

def body
  return @body if defined? @body
  @body = self.parse_from self.raw['Message']
end

#event ⇒ Symbol

Returns the auto-scaling event name

Returns:

  • (Symbol) —

    the auto-scaling event name



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# File 'lib/aws/sns/originators/from_auto_scaling.rb', line 38

def event
  return @event if defined? @event
  e = body['Event']
  @event = case
    when e =~ /EC2_INSTANCE_TERMINATE/ then :ec2_instance_terminate
    when e =~ /EC2_INSTANCE_TERMINATE_ERROR/ then :ec2_instance_terminate_error
    when e =~ /EC2_INSTANCE_LAUNCH/ then :ec2_instance_launch
    when e =~ /EC2_INSTANCE_LAUNCH_ERROR/ then :ec2_instance_launch_error
    when e =~ /TEST_NOTIFICATION/ then :test_notification
    else :unknown
  end
end

#group_name ⇒ String

Returns the auto-scaling group name

Returns:

  • (String) —

    the auto-scaling group name



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# File 'lib/aws/sns/originators/from_auto_scaling.rb', line 52

def group_name
  body['AutoScalingGroupName']
end

#instance_id ⇒ String

Returns the instance-ID that is the subject of this event

Returns:

  • (String) —

    the instance-ID that is the subject of this event



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# File 'lib/aws/sns/originators/from_auto_scaling.rb', line 61

def instance_id
  body['EC2InstanceId']
end

#status_code ⇒ Object 



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# File 'lib/aws/sns/originators/from_auto_scaling.rb', line 56

def status_code
  body['StatusCode']
end