Class: Standup::EC2::Instance

Inherits:
Base
  • Object
show all
Defined in:
lib/standup/ec2/instance.rb

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Base

#exists?, info_reader

Constructor Details

#initialize(id, info = false) ⇒ Instance

Returns a new instance of Instance.



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# File 'lib/standup/ec2/instance.rb', line 4

def initialize id, info = false
  @id = id
  super info
end

Class Method Details

.create(image_id, instance_type, security_groups) ⇒ Object 



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# File 'lib/standup/ec2/instance.rb', line 35

def self.create image_id, instance_type, security_groups
  response = api.run_instances :image_id => image_id,
                               :key_name => Settings.aws.keypair_name,
                               :instance_type => instance_type,
                               :security_group => security_groups.map(&:name),
                               :availability_zone => Settings.aws.availability_zone
  id = response.instancesSet.item[0].instanceId
  list[id] = Instance.new id
end

.group_running(reload = false) ⇒ Object 



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# File 'lib/standup/ec2/instance.rb', line 24

def self.group_running reload = false
  result = {}
  SecurityGroup.list(reload).each {|name, _| result[name] = []}
  list(reload).each do |_, instance|
    instance.security_groups.each do |sg|
      result[sg.name] << instance
    end unless [:terminated, :"shutting-down"].include?(instance.state)
  end
  result
end

.list(reload = false) ⇒ Object 



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# File 'lib/standup/ec2/instance.rb', line 11

def self.list reload = false
  if !class_variable_defined?(:@@list) || reload
    @@list = {}
    result = api.describe_instances
    result.reservationSet.item.each do |ritem|
      ritem.instancesSet.item.each do |item|
        @@list[item.instanceId] = new item.instanceId, build_info(ritem, item)
      end if ritem.instancesSet
    end if result.reservationSet
  end
  @@list
end

Instance Method Details

#load_info ⇒ Object 



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# File 'lib/standup/ec2/instance.rb', line 64

def load_info
  ritem = api.describe_instances(:instance_id => @id).reservationSet.item[0]
  set_info self.class.build_info(ritem, ritem.instancesSet.item[0])
end

#reboot ⇒ Object 



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# File 'lib/standup/ec2/instance.rb', line 49

def reboot
  api.reboot_instances :instance_id => @id
end

#terminate ⇒ Object 



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# File 'lib/standup/ec2/instance.rb', line 45

def terminate
  api.terminate_instances :instance_id => @id
end

#wait_until(timeout = 300) ⇒ Object 



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# File 'lib/standup/ec2/instance.rb', line 53

def wait_until timeout = 300
  sleeping = 0
  while yield(self) && sleeping < timeout
    sleeping += sleep 5
    STDOUT.print '.'
    STDOUT.flush
    load_info
  end
  print "\n"
end