class OpenStax::Aws::AutoScalingInstance
Attributes
raw[R]
Public Class Methods
me()
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# File lib/openstax/aws/auto_scaling_instance.rb, line 16 def self.me instance_id = Ec2InstanceData.instance_id region = Ec2InstanceData.region client = Aws::AutoScaling::Client.new(region: region) instance_info = client.describe_auto_scaling_instances({instance_ids: [instance_id]}) .auto_scaling_instances[0] new( group_name: instance_info.auto_scaling_group_name, id: instance_id, region: region ) end
new(group_name:, id:, region:)
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# File lib/openstax/aws/auto_scaling_instance.rb, line 8 def initialize(group_name:, id:, region:) @raw = Aws::AutoScaling::Instance.new( group_name, id, client: Aws::AutoScaling::Client.new(region: region) ) end
Public Instance Methods
continue_to_termination(hook_name:)
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# File lib/openstax/aws/auto_scaling_instance.rb, line 86 def continue_to_termination(hook_name:) raw.client.complete_lifecycle_action({ lifecycle_hook_name: hook_name, auto_scaling_group_name: raw.group_name, lifecycle_action_result: "CONTINUE", instance_id: raw.id, }) end
lifecycle_state_refresh_seconds()
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# File lib/openstax/aws/auto_scaling_instance.rb, line 74 def lifecycle_state_refresh_seconds 5 end
recent_lifecycle_state()
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# File lib/openstax/aws/auto_scaling_instance.rb, line 63 def recent_lifecycle_state if @recent_lifecycle_state_last_refreshed_at.nil? || Time.now - @recent_lifecycle_state_last_refreshed_at > lifecycle_state_refresh_seconds reload @recent_lifecycle_state_last_refreshed_at = Time.now @recent_lifecycle_state = lifecycle_state else @recent_lifecycle_state end end
terminate(options = {})
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# File lib/openstax/aws/auto_scaling_instance.rb, line 31 def terminate(options = {}) hook_name = options.delete(:continue_hook_name) raw.terminate(options) if hook_name sleep(terminate_wait_sleep_seconds) until terminating_wait? continue_to_termination(hook_name: hook_name) end end
terminate_wait_sleep_seconds()
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# File lib/openstax/aws/auto_scaling_instance.rb, line 78 def terminate_wait_sleep_seconds 6 end
terminating_wait?()
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# File lib/openstax/aws/auto_scaling_instance.rb, line 82 def terminating_wait? "Terminating:Wait" == recent_lifecycle_state end
unless_waiting_for_termination(hook_name:) { || ... }
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# File lib/openstax/aws/auto_scaling_instance.rb, line 40 def unless_waiting_for_termination(hook_name:) # "Terminating" is a transition state to "Terminating:Wait", but we don't # check for it because if we try to continue from "Terminating", AWS freaks # out because it needs to continue from the wait state if terminating_wait? continue_to_termination(hook_name: hook_name) return end yield # In case the yield takes a long time and this code isn't called # again for a while (e.g. an infrequent cron job), check the terminating # state again. If this method is called in a loop, the check here # and the next check at the start of this method will not cause duplicate # network calls because the lifecycle state is cached for a few seconds. if terminating_wait? continue_to_termination(hook_name: hook_name) end end