Class: Chef::Provider::AwsRdsSubnetGroup

Inherits:
Chef::Provisioning::AWSDriver::AWSProvider show all
Includes:
Chef::Provisioning::AWSDriver::TaggingStrategy::RDSConvergeTags
Defined in:
lib/chef/provider/aws_rds_subnet_group.rb

Constant Summary

Constants inherited from Chef::Provisioning::AWSDriver::AWSProvider

Chef::Provisioning::AWSDriver::AWSProvider::AWSResource

Instance Attribute Summary

Attributes inherited from Chef::Provisioning::AWSDriver::AWSProvider

#purging

Instance Method Summary collapse

Methods included from Chef::Provisioning::AWSDriver::TaggingStrategy::RDSConvergeTags

#aws_tagger, #construct_arn, #converge_tags

Methods inherited from Chef::Provisioning::AWSDriver::AWSProvider

#action_handler, #converge_by, #region, #whyrun_supported?

Instance Method Details

#create_aws_object ⇒ Object 



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# File 'lib/chef/provider/aws_rds_subnet_group.rb', line 9

def create_aws_object
  converge_by "create RDS subnet group #{new_resource.name} in #{region}" do
    driver.create_db_subnet_group(desired_options)
  end
end

#desired_options ⇒ Object 



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# File 'lib/chef/provider/aws_rds_subnet_group.rb', line 30

def desired_options
  @desired_options ||= begin
    opts = {}
    opts[:db_subnet_group_name] = new_resource.name
    opts[:db_subnet_group_description] = new_resource.description
    opts[:subnet_ids] = new_resource.subnets
    AWSResource.lookup_options(opts, resource: new_resource)
  end
end

#destroy_aws_object(object) ⇒ Object 



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# File 'lib/chef/provider/aws_rds_subnet_group.rb', line 15

def destroy_aws_object(object)
  converge_by "delete RDS subnet group #{new_resource.name} in #{region}" do
    driver.delete_db_subnet_group(db_subnet_group_name: new_resource.name)
  end
end

#required_updates(object) ⇒ Object

Given an existing object, return an array of update descriptions representing the updates that need to be made.

If no updates are needed, an empty array is returned.



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# File 'lib/chef/provider/aws_rds_subnet_group.rb', line 45

def required_updates(object)
  ret = []
  if desired_options[:db_subnet_group_description] != object[:db_subnet_group_description]
    ret << "  set group description to #{desired_options[:db_subnet_group_description]}"
  end

  if ! xor_array(desired_options[:subnet_ids], subnet_ids(object[:subnets])).empty?
    ret << "  set subnets to #{desired_options[:subnet_ids]}"
  end

  if ! (desired_options[:aws_tags].nil? || desired_options[:aws_tags].empty?)
    # modify_db_subnet_group doesn't support the tags key according to
    # http://docs.aws.amazon.com/AWSRubySDK/latest/AWS/RDS/Client.html#modify_db_subnet_group-instance_method
    Chef::Log.warn "Updating tags for RDS subnet groups is not supported."
  end

  ret.unshift("update RDS subnet group #{new_resource.name} in #{region}") unless ret.empty?
  ret
end

#update_aws_object(object) ⇒ Object 



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# File 'lib/chef/provider/aws_rds_subnet_group.rb', line 21

def update_aws_object(object)
  updates = required_updates(object)
  if ! updates.empty?
    converge_by updates do
      driver.modify_db_subnet_group(desired_options)
    end
  end
end