Class: Chef::Knife::RdsInstanceRestoreFromDataBag

Inherits:
Chef::Knife
  • Object
show all
Includes:
RdsBase, RdsBaseDataBag
Defined in:
lib/chef/knife/rds_instance_restore_from_data_bag.rb

Constant Summary

Constants included from RdsBase

Chef::Knife::RdsBase::APPLY_METHODS

Instance Method Summary collapse

Methods included from RdsBaseDataBag

#assert_data_bag_exists!, #assert_data_bag_item_exists!, #assert_data_bag_item_valid!, #assert_required_data_bag_options_present!, #data_bag_exists?, #data_bag_item, #defined_params, included, #required_data_bag_options

Methods included from RdsBase

#assert_name_args_at_least!, #assert_valid_apply_method!, #authenticate!, #connect!, included, #rds

Instance Method Details

#data_bag_item_name ⇒ Object 



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# File 'lib/chef/knife/rds_instance_restore_from_data_bag.rb', line 54

def data_bag_item_name
  db_instance_id
end

#db_instance ⇒ Object 



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# File 'lib/chef/knife/rds_instance_restore_from_data_bag.rb', line 66

def db_instance
  unless @db_instance
    begin
      @db_instance = rds.client.describe_db_instances(db_instance_identifier: db_instance_id)
      @db_instance = @db_instance[:db_instances].first
    rescue AWS::RDS::Errors::DBInstanceNotFound => e
      @db_instance = nil
    end
  end
  @db_instance
end

#db_instance_id ⇒ Object 



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# File 'lib/chef/knife/rds_instance_restore_from_data_bag.rb', line 58

def db_instance_id
  name_args.first
end

#db_snapshot_id ⇒ Object 



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# File 'lib/chef/knife/rds_instance_restore_from_data_bag.rb', line 62

def db_snapshot_id
  name_args.last
end

#restore_instance! ⇒ Object 



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# File 'lib/chef/knife/rds_instance_restore_from_data_bag.rb', line 45

def restore_instance!
  rds.client.restore_db_instance_from_db_snapshot(restore_params)
end

#restore_params ⇒ Object 



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# File 'lib/chef/knife/rds_instance_restore_from_data_bag.rb', line 49

def restore_params
  { db_instance_identifier: db_instance_id, db_snapshot_identifier: db_snapshot_id }
    .merge(defined_params)
end

#run ⇒ Object 



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# File 'lib/chef/knife/rds_instance_restore_from_data_bag.rb', line 22

def run

  assert_name_args_at_least!(2)

  assert_data_bag_item_valid!

  authenticate!

  ui.info("You are trying to restore snapshot #{db_snapshot_id} into instance #{db_instance_id}")

  unless db_instance.nil?
    ui.info("Instance #{db_instance_id} already exists!")
    exit 1
  end

  confirm("Restore Instance #{db_instance_id} from #{db_snapshot_id}")

  restore_instance!

  ui.info("Restore #{db_instance_id} from #{db_snapshot_id}")

end