Class: Aws::AutoScaling::LaunchConfiguration

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

Defined Under Namespace

Classes: Collection

Read-Only Attributes collapse

Actions collapse

Instance Method Summary collapse

Constructor Details

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

Returns a new instance of LaunchConfiguration.

Overloads:



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# File 'gems/aws-sdk-autoscaling/lib/aws-sdk-autoscaling/launch_configuration.rb', line 22

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)
  @waiter_block_warned = false
end

Instance Method Details

#associate_public_ip_address ⇒ Boolean

Specifies whether to assign a public IPv4 address to the group's instances. If the instance is launched into a default subnet, the default is to assign a public IPv4 address, unless you disabled the option to assign a public IPv4 address on the subnet. If the instance is launched into a nondefault subnet, the default is not to assign a public IPv4 address, unless you enabled the option to assign a public IPv4 address on the subnet. For more information, see Provide network connectivity for your Auto Scaling instances using Amazon VPC in the Amazon EC2 Auto Scaling User Guide.

Returns:

  • (Boolean) 


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# File 'gems/aws-sdk-autoscaling/lib/aws-sdk-autoscaling/launch_configuration.rb', line 223

def associate_public_ip_address
  data[:associate_public_ip_address]
end

#block_device_mappings ⇒ Array<Types::BlockDeviceMapping>

The block device mapping entries that define the block devices to attach to the instances at launch. By default, the block devices specified in the block device mapping for the AMI are used. For more information, see Block device mappings in the Amazon EC2 User Guide for Linux Instances.

Returns:



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# File 'gems/aws-sdk-autoscaling/lib/aws-sdk-autoscaling/launch_configuration.rb', line 144

def block_device_mappings
  data[:block_device_mappings]
end

#classic_link_vpc_id ⇒ String

Available for backward compatibility.

Returns:

  • (String) 


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# File 'gems/aws-sdk-autoscaling/lib/aws-sdk-autoscaling/launch_configuration.rb', line 84

def classic_link_vpc_id
  data[:classic_link_vpc_id]
end

#classic_link_vpc_security_groups ⇒ Array<String>

Available for backward compatibility.

Returns:

  • (Array<String>) 


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# File 'gems/aws-sdk-autoscaling/lib/aws-sdk-autoscaling/launch_configuration.rb', line 90

def classic_link_vpc_security_groups
  data[:classic_link_vpc_security_groups]
end

#client ⇒ Client

Returns:



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# File 'gems/aws-sdk-autoscaling/lib/aws-sdk-autoscaling/launch_configuration.rb', line 250

def client
  @client
end

#created_time ⇒ Time

The creation date and time for the launch configuration.

Returns:

  • (Time) 


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# File 'gems/aws-sdk-autoscaling/lib/aws-sdk-autoscaling/launch_configuration.rb', line 192

def created_time
  data[:created_time]
end

#data ⇒ Types::LaunchConfiguration

Returns the data for this Aws::AutoScaling::LaunchConfiguration. Calls Client#describe_launch_configurations if #data_loaded? is false.

Returns:



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# File 'gems/aws-sdk-autoscaling/lib/aws-sdk-autoscaling/launch_configuration.rb', line 272

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.



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# File 'gems/aws-sdk-autoscaling/lib/aws-sdk-autoscaling/launch_configuration.rb', line 280

def data_loaded?
  !!@data
end

#delete(options = {}) ⇒ EmptyStructure

Examples:

Request syntax with placeholder values


launch_configuration.delete()

Parameters:

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

    ({})

Returns:

  • (EmptyStructure) 


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# File 'gems/aws-sdk-autoscaling/lib/aws-sdk-autoscaling/launch_configuration.rb', line 390

def delete(options = {})
  options = options.merge(launch_configuration_name: @name)
  resp = Aws::Plugins::UserAgent.metric('RESOURCE_MODEL') do
    @client.delete_launch_configuration(options)
  end
  resp.data
end

#ebs_optimized ⇒ Boolean

Specifies whether the launch configuration is optimized for EBS I/O (true) or not (false). For more information, see Amazon EBS-optimized instances in the Amazon EC2 User Guide for Linux Instances.

Returns:

  • (Boolean) 


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# File 'gems/aws-sdk-autoscaling/lib/aws-sdk-autoscaling/launch_configuration.rb', line 205

def ebs_optimized
  data[:ebs_optimized]
end

#iam_instance_profile ⇒ String

The name or the Amazon Resource Name (ARN) of the instance profile associated with the IAM role for the instance. The instance profile contains the IAM role. For more information, see IAM role for applications that run on Amazon EC2 instances in the Amazon EC2 Auto Scaling User Guide.

Returns:

  • (String) 


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# File 'gems/aws-sdk-autoscaling/lib/aws-sdk-autoscaling/launch_configuration.rb', line 186

def iam_instance_profile
  data[:iam_instance_profile]
end

#image_id ⇒ String

The ID of the Amazon Machine Image (AMI) to use to launch your EC2 instances. For more information, see Find a Linux AMI in the Amazon EC2 User Guide for Linux Instances.

Returns:

  • (String) 


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# File 'gems/aws-sdk-autoscaling/lib/aws-sdk-autoscaling/launch_configuration.rb', line 52

def image_id
  data[:image_id]
end

#instance_monitoring ⇒ Types::InstanceMonitoring

Controls whether instances in this group are launched with detailed (true) or basic (false) monitoring.

For more information, see Configure monitoring for Auto Scaling instances in the Amazon EC2 Auto Scaling User Guide.

Returns:



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# File 'gems/aws-sdk-autoscaling/lib/aws-sdk-autoscaling/launch_configuration.rb', line 158

def instance_monitoring
  data[:instance_monitoring]
end

#instance_type ⇒ String

The instance type for the instances. For information about available instance types, see Available instance types in the Amazon EC2 User Guide for Linux Instances.

Returns:

  • (String) 


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# File 'gems/aws-sdk-autoscaling/lib/aws-sdk-autoscaling/launch_configuration.rb', line 118

def instance_type
  data[:instance_type]
end

#kernel_id ⇒ String

The ID of the kernel associated with the AMI.

Returns:

  • (String) 


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# File 'gems/aws-sdk-autoscaling/lib/aws-sdk-autoscaling/launch_configuration.rb', line 124

def kernel_id
  data[:kernel_id]
end

#key_name ⇒ String

The name of the key pair.

For more information, see Amazon EC2 key pairs and Amazon EC2 instances in the Amazon EC2 User Guide for Linux Instances.

Returns:

  • (String) 


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# File 'gems/aws-sdk-autoscaling/lib/aws-sdk-autoscaling/launch_configuration.rb', line 65

def key_name
  data[:key_name]
end

#launch_configuration_arn ⇒ String

The Amazon Resource Name (ARN) of the launch configuration.

Returns:

  • (String) 


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# File 'gems/aws-sdk-autoscaling/lib/aws-sdk-autoscaling/launch_configuration.rb', line 40

def launch_configuration_arn
  data[:launch_configuration_arn]
end

#load ⇒ self Also known as: reload

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

launch_configuration.reload.data

Returns:

  • (self) 


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# File 'gems/aws-sdk-autoscaling/lib/aws-sdk-autoscaling/launch_configuration.rb', line 260

def load
  resp = Aws::Plugins::UserAgent.metric('RESOURCE_MODEL') do
    @client.describe_launch_configurations(launch_configuration_names: [@name])
  end
  @data = resp.launch_configurations[0]
  self
end

#metadata_options ⇒ Types::InstanceMetadataOptions

The metadata options for the instances. For more information, see Configure the instance metadata options in the Amazon EC2 Auto Scaling User Guide.

Returns:



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# File 'gems/aws-sdk-autoscaling/lib/aws-sdk-autoscaling/launch_configuration.rb', line 243

def metadata_options
  data[:metadata_options]
end

#name ⇒ String Also known as: launch_configuration_name

Returns:

  • (String) 


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# File 'gems/aws-sdk-autoscaling/lib/aws-sdk-autoscaling/launch_configuration.rb', line 33

def name
  @name
end

#placement_tenancy ⇒ String

The tenancy of the instance, either default or dedicated. An instance with dedicated tenancy runs on isolated, single-tenant hardware and can only be launched into a VPC.

Returns:

  • (String) 


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# File 'gems/aws-sdk-autoscaling/lib/aws-sdk-autoscaling/launch_configuration.rb', line 231

def placement_tenancy
  data[:placement_tenancy]
end

#ramdisk_id ⇒ String

The ID of the RAM disk associated with the AMI.

Returns:

  • (String) 


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# File 'gems/aws-sdk-autoscaling/lib/aws-sdk-autoscaling/launch_configuration.rb', line 130

def ramdisk_id
  data[:ramdisk_id]
end

#security_groups ⇒ Array<String>

A list that contains the security groups to assign to the instances in the Auto Scaling group. For more information, see Control traffic to your Amazon Web Services resources using security groups in the Amazon Virtual Private Cloud User Guide.

Returns:

  • (Array<String>) 


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# File 'gems/aws-sdk-autoscaling/lib/aws-sdk-autoscaling/launch_configuration.rb', line 78

def security_groups
  data[:security_groups]
end

#spot_price ⇒ String

The maximum hourly price to be paid for any Spot Instance launched to fulfill the request. Spot Instances are launched when the price you specify exceeds the current Spot price. For more information, see Requesting Spot Instances for fault-tolerant and flexible applications in the Amazon EC2 Auto Scaling User Guide.

Returns:

  • (String) 


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# File 'gems/aws-sdk-autoscaling/lib/aws-sdk-autoscaling/launch_configuration.rb', line 172

def spot_price
  data[:spot_price]
end

#user_data ⇒ String

The user data to make available to the launched EC2 instances. For more information, see Instance metadata and user data (Linux) and Instance metadata and user data (Windows). If you are using a command line tool, base64-encoding is performed for you, and you can load the text from a file. Otherwise, you must provide base64-encoded text. User data is limited to 16 KB.

Returns:

  • (String) 


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# File 'gems/aws-sdk-autoscaling/lib/aws-sdk-autoscaling/launch_configuration.rb', line 106

def user_data
  data[:user_data]
end

#wait_until(options = {}) {|resource| ... } ⇒ Resource

Deprecated.

Use [Aws::AutoScaling::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) do |instance|
  instance.state.name == 'running'
end

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

Yield Parameters:

  • resource (Resource) —

    to be used in the waiting condition.

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



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# File 'gems/aws-sdk-autoscaling/lib/aws-sdk-autoscaling/launch_configuration.rb', line 364

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::Plugins::UserAgent.metric('RESOURCE_MODEL') do
    Aws::Waiters::Waiter.new(options).wait({})
  end
end