Class: AWS::AutoScaling

Inherits:
Object
  • Object
show all
Includes:
Core::ServiceInterface
Defined in:
lib/aws/auto_scaling.rb,
lib/aws/auto_scaling/tag.rb,
lib/aws/auto_scaling/group.rb,
lib/aws/auto_scaling/client.rb,
lib/aws/auto_scaling/errors.rb,
lib/aws/auto_scaling/request.rb,
lib/aws/auto_scaling/activity.rb,
lib/aws/auto_scaling/instance.rb,
lib/aws/auto_scaling/group_options.rb,
lib/aws/auto_scaling/scaling_policy.rb,
lib/aws/auto_scaling/tag_collection.rb,
lib/aws/auto_scaling/group_collection.rb,
lib/aws/auto_scaling/scheduled_action.rb,
lib/aws/auto_scaling/activity_collection.rb,
lib/aws/auto_scaling/instance_collection.rb,
lib/aws/auto_scaling/launch_configuration.rb,
lib/aws/auto_scaling/scaling_policy_options.rb,
lib/aws/auto_scaling/scaling_policy_collection.rb,
lib/aws/auto_scaling/notification_configuration.rb,
lib/aws/auto_scaling/scheduled_action_collection.rb,
lib/aws/auto_scaling/launch_configuration_collection.rb,
lib/aws/auto_scaling/notification_configuration_collection.rb

Overview

This class is the starting point for working with Auto Scaling.

To use Auto Scaling you must first sign up here.

For more information about Auto Scaling:

Credentials

You can setup default credentials for all AWS services via AWS.config:

AWS.config(
  :access_key_id => 'YOUR_ACCESS_KEY_ID',
  :secret_access_key => 'YOUR_SECRET_ACCESS_KEY')

Or you can set them directly on the AWS::AutoScaling interface:

auto_scaling = AWS::AutoScaling.new(
  :access_key_id => 'YOUR_ACCESS_KEY_ID',
  :secret_access_key => 'YOUR_SECRET_ACCESS_KEY')

Launch Configurations

You need to create a launch configuration before you can create an Auto Scaling Group.

# needs a name, image id, and instance type
launch_config = auto_scaling.launch_configurations.create(
  'launch-config-name', 'ami-12345', 'm1.small')

If you have previously created a launch configuration you can reference using the LaunchConfigurationCollection.

launch_config = auto_scaling.launch_configurations['launch-config-name']

Auto Scaling Groups

Given a launch configuration, you can now create an Auto Scaling Group.

group = auto_scaling.groups.create('group-name',
  :launch_configuration => launch_config,
  :availability_zones => %w(us-east-1a us-east-1b),
  :min_size => 1,
  :max_size => 4)

Defined Under Namespace

Modules: Errors Classes: Activity, ActivityCollection, Client, Group, GroupCollection, Instance, InstanceCollection, LaunchConfiguration, LaunchConfigurationCollection, NotificationConfiguration, NotificationConfigurationCollection, ScalingPolicy, ScalingPolicyCollection, ScheduledAction, ScheduledActionCollection, Tag, TagCollection

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Core::ServiceInterface

#initialize, #inspect

Instance Attribute Details

#client ⇒ Client (readonly)

Returns the low-level AutoScaling client object.

Returns:

  • (Client) —

    the low-level AutoScaling client object



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# File 'lib/aws/auto_scaling.rb', line 70

class AutoScaling

  AWS.register_autoloads(self, 'aws/auto_scaling') do
    autoload :Activity, 'activity'
    autoload :ActivityCollection, 'activity_collection'
    autoload :Client, 'client'
    autoload :Errors, 'errors'
    autoload :Group, 'group'
    autoload :GroupCollection, 'group_collection'
    autoload :GroupOptions, 'group_options'
    autoload :Instance, 'instance'
    autoload :InstanceCollection, 'instance_collection'
    autoload :LaunchConfiguration, 'launch_configuration'
    autoload :LaunchConfigurationCollection, 'launch_configuration_collection'
    autoload :NotificationConfiguration, 'notification_configuration'
    autoload :NotificationConfigurationCollection, 'notification_configuration_collection'
    autoload :Request, 'request'
    autoload :ScalingPolicy, 'scaling_policy'
    autoload :ScalingPolicyCollection, 'scaling_policy_collection'
    autoload :ScalingPolicyOptions, 'scaling_policy_options'
    autoload :ScheduledAction, 'scheduled_action'
    autoload :ScheduledActionCollection, 'scheduled_action_collection'
    autoload :Tag, 'tag'
    autoload :TagCollection, 'tag_collection'
  end

  include Core::ServiceInterface

  # @return [LaunchConfigurationCollection]
  def launch_configurations
    LaunchConfigurationCollection.new(:config => config)
  end

  # @return [GroupCollection]
  def groups
    GroupCollection.new(:config => config)
  end

  # @return [TagCollection]
  def tags
    TagCollection.new(:config => config)
  end

  # @return [NotificationConfigurationCollection]
  def notification_configurations
    NotificationConfigurationCollection.new(:config => config)
  end

  # @return [AutoScaling::InstancesCollection] Returns a collection of
  #   {AutoScaling::Instance} objects.  Each of these is a small
  #   wrapper around an {EC2::Instance} with additional attributes.
  def instances
    InstanceCollection.new(:config => config)
  end

  # @return [ActivityCollection]
  def activities
    ActivityCollection.new(:config => config)
  end

  # @return [ScheduledActionCollection]
  def scheduled_actions
    ScheduledActionCollection.new(:config => config)
  end

  # Returns a list of all notification types that are supported by
  # Auto Scaling.
  # @return [Array<String>]
  def notification_types
    resp = client.describe_auto_scaling_notification_types
    resp.auto_scaling_notification_types
  end

  # @return [Array<String>] Returns the list of valid adjustment types.
  def adjustment_types
    client.describe_adjustment_types.adjustment_types.map(&:adjustment_type)
  end

  # @return [Array<String>] Returns the list of valid scaling process types.
  def scaling_process_types
    client.describe_scaling_process_types.processes.map(&:process_name)
  end

  # @return [Array<String>] Returns the list of valid metric collection types.
  def metric_collection_types
    client.describe_metric_collection_types.metrics.map(&:metric)
  end

  # @return [Array<String>] Returns the list of valid metric granularities.
  def metric_collection_granularities
    client.describe_metric_collection_types.granularities.map(&:granularity)
  end

end

Instance Method Details

#activities ⇒ ActivityCollection

Returns:



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# File 'lib/aws/auto_scaling.rb', line 126

def activities
  ActivityCollection.new(:config => config)
end

#adjustment_types ⇒ Array<String>

Returns the list of valid adjustment types.

Returns:

  • (Array<String>) —

    Returns the list of valid adjustment types.



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# File 'lib/aws/auto_scaling.rb', line 144

def adjustment_types
  client.describe_adjustment_types.adjustment_types.map(&:adjustment_type)
end

#groups ⇒ GroupCollection

Returns:



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# File 'lib/aws/auto_scaling.rb', line 104

def groups
  GroupCollection.new(:config => config)
end

#launch_configurations ⇒ LaunchConfigurationCollection

Returns:



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# File 'lib/aws/auto_scaling.rb', line 99

def launch_configurations
  LaunchConfigurationCollection.new(:config => config)
end

#metric_collection_granularities ⇒ Array<String>

Returns the list of valid metric granularities.

Returns:

  • (Array<String>) —

    Returns the list of valid metric granularities.



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# File 'lib/aws/auto_scaling.rb', line 159

def metric_collection_granularities
  client.describe_metric_collection_types.granularities.map(&:granularity)
end

#metric_collection_types ⇒ Array<String>

Returns the list of valid metric collection types.

Returns:

  • (Array<String>) —

    Returns the list of valid metric collection types.



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# File 'lib/aws/auto_scaling.rb', line 154

def metric_collection_types
  client.describe_metric_collection_types.metrics.map(&:metric)
end

#notification_configurations ⇒ NotificationConfigurationCollection

Returns:



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# File 'lib/aws/auto_scaling.rb', line 114

def notification_configurations
  NotificationConfigurationCollection.new(:config => config)
end

#notification_types ⇒ Array<String>

Returns a list of all notification types that are supported by Auto Scaling.

Returns:

  • (Array<String>) 


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# File 'lib/aws/auto_scaling.rb', line 138

def notification_types
  resp = client.describe_auto_scaling_notification_types
  resp.auto_scaling_notification_types
end

#scaling_process_types ⇒ Array<String>

Returns the list of valid scaling process types.

Returns:

  • (Array<String>) —

    Returns the list of valid scaling process types.



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# File 'lib/aws/auto_scaling.rb', line 149

def scaling_process_types
  client.describe_scaling_process_types.processes.map(&:process_name)
end

#scheduled_actions ⇒ ScheduledActionCollection

Returns:



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# File 'lib/aws/auto_scaling.rb', line 131

def scheduled_actions
  ScheduledActionCollection.new(:config => config)
end

#tags ⇒ TagCollection

Returns:



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# File 'lib/aws/auto_scaling.rb', line 109

def tags
  TagCollection.new(:config => config)
end