You are viewing documentation for version 3 of the AWS SDK for Ruby. Version 2 documentation can be found here.

Class: Aws::EC2::KeyPairInfo

Inherits:
Object
  • Object
show all
Defined in:
gems/aws-sdk-ec2/lib/aws-sdk-ec2/key_pair_info.rb

Defined Under Namespace

Classes: Collection

Actions collapse

Read-Only Attributes collapse

Instance Method Summary collapse

Constructor Details

#initialize(name, options = {}) ⇒ KeyPairInfo #initialize(options = {}) ⇒ KeyPairInfo

Returns a new instance of KeyPairInfo

Overloads:

  • #initialize(name, options = {}) ⇒ KeyPairInfo

    Parameters:

    • name (String)

    Options Hash (options):

  • #initialize(options = {}) ⇒ KeyPairInfo

    Options Hash (options):

    • :name (required, String)
    • :client (Client) 


19
20
21
22
23
24
 
# File 'gems/aws-sdk-ec2/lib/aws-sdk-ec2/key_pair_info.rb', line 19

def initialize(*args)
  options = Hash === args.last ? args.pop.dup : {}
  @name = extract_name(args, options)
  @data = options.delete(:data)
  @client = options.delete(:client) || Client.new(options)
end

Instance Method Details

#client ⇒ Client

Returns:



46
47
48
 
# File 'gems/aws-sdk-ec2/lib/aws-sdk-ec2/key_pair_info.rb', line 46

def client
  @client
end

#data ⇒ Types::KeyPairInfo

Returns the data for this Aws::EC2::KeyPairInfo. Calls Client#describe_key_pairs if #data_loaded? is false.

Returns:



66
67
68
69
 
# File 'gems/aws-sdk-ec2/lib/aws-sdk-ec2/key_pair_info.rb', line 66

def data
  load unless @data
  @data
end

#data_loaded? ⇒ Boolean

Returns true if this resource is loaded. Accessing attributes or #data on an unloaded resource will trigger a call to #load.

Returns:

  • (Boolean) —

    Returns true if this resource is loaded. Accessing attributes or #data on an unloaded resource will trigger a call to #load.



74
75
76
 
# File 'gems/aws-sdk-ec2/lib/aws-sdk-ec2/key_pair_info.rb', line 74

def data_loaded?
  !!@data
end

#delete(options = {}) ⇒ EmptyStructure

Examples:

Request syntax with placeholder values


key_pair_info.delete({
  dry_run: false,
})

Parameters:

  • options (Hash) (defaults to: {}) —

    ({})

Options Hash (options):

  • :dry_run (Boolean) —

    Checks whether you have the required permissions for the action, without actually making the request, and provides an error response. If you have the required permissions, the error response is DryRunOperation. Otherwise, it is UnauthorizedOperation.

Returns:

  • (EmptyStructure) 


187
188
189
190
191
 
# File 'gems/aws-sdk-ec2/lib/aws-sdk-ec2/key_pair_info.rb', line 187

def delete(options = {})
  options = options.merge(key_name: @name)
  resp = @client.delete_key_pair(options)
  resp.data
end

#key_fingerprint ⇒ String

If you used CreateKeyPair to create the key pair, this is the SHA-1 digest of the DER encoded private key. If you used ImportKeyPair to provide AWS the public key, this is the MD5 public key fingerprint as specified in section 4 of RFC4716.

Returns:

  • (String) 


39
40
41
 
# File 'gems/aws-sdk-ec2/lib/aws-sdk-ec2/key_pair_info.rb', line 39

def key_fingerprint
  data[:key_fingerprint]
end

#load ⇒ self Also known as: reload

Loads, or reloads #data for the current Aws::EC2::KeyPairInfo. Returns self making it possible to chain methods.

key_pair_info.reload.data

Returns:

  • (self) 


56
57
58
59
60
 
# File 'gems/aws-sdk-ec2/lib/aws-sdk-ec2/key_pair_info.rb', line 56

def load
  resp = @client.describe_key_pairs(key_names: [@name])
  @data = resp.key_pairs[0]
  self
end

#name ⇒ String Also known as: key_name

Returns:

  • (String) 


29
30
31
 
# File 'gems/aws-sdk-ec2/lib/aws-sdk-ec2/key_pair_info.rb', line 29

def name
  @name
end

#wait_until(options = {}, &block) ⇒ Resource

Deprecated.

Use [Aws::EC2::Client] #wait_until instead

Note:

The waiting operation is performed on a copy. The original resource remains unchanged

Waiter polls an API operation until a resource enters a desired state.

Basic Usage

Waiter will polls until it is successful, it fails by entering a terminal state, or until a maximum number of attempts are made.

# polls in a loop until condition is true
resource.wait_until(options) {|resource| condition}

Example

instance.wait_until(max_attempts:10, delay:5) {|instance| instance.state.name == 'running' }

Configuration

You can configure the maximum number of polling attempts, and the delay (in seconds) between each polling attempt. The waiting condition is set by passing a block to #wait_until:

# poll for ~25 seconds
resource.wait_until(max_attempts:5,delay:5) {|resource|...}

Callbacks

You can be notified before each polling attempt and before each delay. If you throw :success or :failure from these callbacks, it will terminate the waiter.

started_at = Time.now
# poll for 1 hour, instead of a number of attempts
proc = Proc.new do |attempts, response|
  throw :failure if Time.now - started_at > 3600
end

  # disable max attempts
instance.wait_until(before_wait:proc, max_attempts:nil) {...}

Handling Errors

When a waiter is successful, it returns the Resource. When a waiter fails, it raises an error.

begin
  resource.wait_until(...)
rescue Aws::Waiters::Errors::WaiterFailed
  # resource did not enter the desired state in time
end

attempts attempt in seconds invoked before each attempt invoked before each wait

Parameters:

  • options (Hash) (defaults to: {}) —

    a customizable set of options

Options Hash (options):

  • :max_attempts (Integer) — default: 10 —

    Maximum number of

  • :delay (Integer) — default: 10 —

    Delay between each

  • :before_attempt (Proc) — default: nil —

    Callback

  • :before_wait (Proc) — default: nil —

    Callback

Returns:

  • (Resource) —

    if the waiter was successful

Raises:

  • (Aws::Waiters::Errors::FailureStateError) —

    Raised when the waiter terminates because the waiter has entered a state that it will not transition out of, preventing success.

    yet successful.

  • (Aws::Waiters::Errors::UnexpectedError) —

    Raised when an error is encountered while polling for a resource that is not expected.

  • (NotImplementedError) —

    Raised when the resource does not



156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
 
# File 'gems/aws-sdk-ec2/lib/aws-sdk-ec2/key_pair_info.rb', line 156

def wait_until(options = {}, &block)
  self_copy = self.dup
  attempts = 0
  options[:max_attempts] = 10 unless options.key?(:max_attempts)
  options[:delay] ||= 10
  options[:poller] = Proc.new do
    attempts += 1
    if block.call(self_copy)
      [:success, self_copy]
    else
      self_copy.reload unless attempts == options[:max_attempts]
      :retry
    end
  end
  Aws::Waiters::Waiter.new(options).wait({})
end