Class: CloudFormationRSpec::ChangeSet

Inherits:
Object
  • Object
show all
Defined in:
lib/cloudformation_rspec/change_set.rb

Constant Summary collapse

END_STATES = 
[
  'CREATE_COMPLETE',
  'DELETE_COMPLETE',
  'FAILED'
]
WAIT_DELAY = 
3
ChangeSetNotComplete = 
Class.new(StandardError)

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(template_body:, parameters: {}) ⇒ ChangeSet

Returns a new instance of ChangeSet.



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# File 'lib/cloudformation_rspec/change_set.rb', line 20

def initialize(template_body:, parameters: {})
  @template_body = template_body
  @parameters = parameters ? parameters : {}
end

Instance Attribute Details

#changes ⇒ Object (readonly)

Returns the value of attribute changes.



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# File 'lib/cloudformation_rspec/change_set.rb', line 18

def changes
  @changes
end

#status ⇒ Object (readonly)

Returns the value of attribute status.



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# File 'lib/cloudformation_rspec/change_set.rb', line 18

def status
  @status
end

Class Method Details

.from_cloudformation_template(template_body:, parameters:) ⇒ Object 



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# File 'lib/cloudformation_rspec/change_set.rb', line 25

def self.from_cloudformation_template(template_body:, parameters:)
  new(template_body: template_body, parameters: parameters).tap { |change_set| change_set.create_change_set }
end

.from_sparkleformation_template(template_file:, compile_state:, parameters:) ⇒ Object 



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# File 'lib/cloudformation_rspec/change_set.rb', line 29

def self.from_sparkleformation_template(template_file:, compile_state:, parameters:)
  template_body = CloudFormationRSpec::Sparkle.compile_sparkle_template(template_file, compile_state)

  new(template_body: template_body, parameters: parameters).tap { |change_set| change_set.create_change_set }
end

Instance Method Details

#create_change_set ⇒ Object 



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# File 'lib/cloudformation_rspec/change_set.rb', line 35

def create_change_set
  change_set_hash = generate_change_set_hash

  if change_set = self.class.get_from_cache(change_set_hash)
    @status = change_set.status
    @changes = change_set.changes.map { |change| CloudFormationRSpec::ResourceChange.new(change.resource_change.resource_type, change.resource_change.logical_resource_id) }
    return change_set
  end

  client = Aws::CloudFormation::Client.new
  change_set = client.create_change_set(
    change_set_name: change_set_name,
    stack_name: change_set_name,
    change_set_type: 'CREATE',
    template_body: @template_body,
    parameters: flat_parameters,
    capabilities: ['CAPABILITY_IAM', 'CAPABILITY_NAMED_IAM'],
  )
  @change_set_id = change_set.id
  stack_created = wait_change_set_review(client, change_set_name)
  response = client.describe_change_set(change_set_name: @change_set_id, stack_name: change_set_name)
  if !END_STATES.include? response.status
    raise ChangeSetNotComplete.new("Change set did not complete in time. #{response.status}")
  end
  @status = response.status
  @changes = response.changes.map { |change| CloudFormationRSpec::ResourceChange.new(change.resource_change.resource_type, change.resource_change.logical_resource_id) }
  client.delete_change_set(change_set_name: change_set_name, stack_name: change_set_name)
  client.delete_stack(stack_name: change_set_name) if stack_created
  self.class.add_to_cache(change_set_hash, response)
  response
end