Class: ActiveAws::Ec2

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

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Base

configure, inherited, #initialize, load_config!, #to_h

Constructor Details

This class inherits a constructor from ActiveAws::Base

Class Method Details

.client ⇒ Object 



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# File 'lib/active_aws/ec2.rb', line 16

def client
  Aws::EC2::Client.new( **configure.default_client_params )
end

.find(instance_id) ⇒ Object 



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# File 'lib/active_aws/ec2.rb', line 20

def find( instance_id )
  response = client.describe_instances({
    instance_ids: [instance_id], 
  })
  return nil unless response.reservations[0]
  new( **response.reservations[0].instances[0].to_h )
end

.find_by_name(name) ⇒ Object 



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# File 'lib/active_aws/ec2.rb', line 28

def find_by_name( name )
  response = client.describe_instances({
    filters: [{ name: "tag:Name", values: [name] }], 
  })
  return nil unless response.reservations[0]
  new( **response.reservations[0].instances[0].to_h )
end

.where(**args) ⇒ Object

Usage: Ec2::where( :“tag:Role” => “web” ) Ec2::where( :“instance-type” => “t2.micro” )



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# File 'lib/active_aws/ec2.rb', line 39

def where( **args )
  filter_params = args.map{|k, v| { name: k, values: Array.wrap(v) }}
  response = client.describe_instances({
    filters: filter_params, 
  })
  instance_params = response.reservations.map{|r| r.instances }.flatten
  instance_params.map{|i| new( **i.to_h )}
end

Instance Method Details

#create_image!(name: nil, description: nil, no_reboot: true, block_device_mappings: nil) ⇒ Object 



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# File 'lib/active_aws/ec2.rb', line 59

def create_image!( name: nil, description: nil, no_reboot: true, block_device_mappings: nil )
  name ||= "#{self.name}-#{Time.current.strftime('%Y%m%d%H%M')}"
  description ||= name
  block_device_mappings ||= [{
    device_name: '/dev/xvda',
    ebs: {
      volume_size: 8,
    },
  }]
  self.class.client.create_image({
    block_device_mappings: block_device_mappings,
    description: description,
    instance_id: instance_id,
    name: name,
    no_reboot: no_reboot,
  })
end

#name ⇒ Object 



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# File 'lib/active_aws/ec2.rb', line 49

def name
  name_tag = tags.detect{|t| t[:key].to_s == "Name"}
  return nil unless name_tag
  name_tag[:value]
end

#reload ⇒ Object 



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# File 'lib/active_aws/ec2.rb', line 55

def reload
  self.class.find( instance_id )
end

#wait_until(waiter_name = :instance_running, &block) ⇒ Object

‘waiter_name` can be checked with the command below. ActiveAws::Ec2.client.waiter_names

Usage: ec2.wait_until :instance_running do |i|

i.max_attempts = 5
i.delay = 5

end



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# File 'lib/active_aws/ec2.rb', line 85

def wait_until( waiter_name=:instance_running, &block )
  self.class.client.wait_until(waiter_name, instance_ids: [instance_id], &block)
end