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# Copyright 2011-2013 Amazon.com, Inc. or its affiliates. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"). You
# may not use this file except in compliance with the License. A copy of
# the License is located at
#
# http://aws.amazon.com/apache2.0/
#
# or in the "license" file accompanying this file. This file is
# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF
# ANY KIND, either express or implied. See the License for the specific
# language governing permissions and limitations under the License.
module AWS
class EC2
# Represents an EC2 key pair.
# @attr_reader [String] fingerprint A SHA-1 digest of the DER encoded
# private key
class KeyPair < Resource
def initialize name, options = {}
@name = name.to_s
@private_key = options[:private_key]
super
end
# @return [String] The name of the key pair.
attr_reader :name
attribute :fingerprint, :from => :key_fingerprint, :static => true
populates_from(:create_key_pair, :import_key_pair) do |resp|
resp if resp.key_name == name
end
populates_from(:describe_key_pairs) do |resp|
resp.key_set.find{|k| k.key_name == name }
end
# @return [Boolean] True if the key pair exists.
def exists?
resp = client.describe_key_pairs(:filters => [
{ :name => "key-name", :values => [name] }
])
!resp.key_set.empty?
end
# Returns the private key. Raises an exception if called
# against an existing key. You can only get the private key
# at the time of creation.
#
# @see KeyPairCollection#import
# @note Only call this method on newly created keys.
# @return [String] An unencrypted PEM encoded RSA private key.
def private_key
unless @private_key
raise 'you can only get the private key for just-created keypairs'
end
@private_key
end
# Deletes this key pair from EC2.
# @return [true]
def delete
client.delete_key_pair(:key_name => name)
true
end
protected
def response_id_method
:key_name
end
protected
def find_in_response(resp)
resp.key_index[name]
end
end
end
end
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