class Forger::Waiter::Ami
Public Instance Methods
wait()
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# File lib/forger/waiter/ami.rb, line 5 def wait delay = 30 timeout = @options[:timeout] max_attempts = timeout / delay current_time = 0 puts "Waiting for #{@options[:name]} to be available. Delay: #{delay}s. Timeout: #{timeout}s" puts "Current time: #{Time.now}" return if ENV['TEST'] # Using while loop because of issues with ruby's Timeout module # http://www.mikeperham.com/2015/05/08/timeout-rubys-most-dangerous-api/ detected = detect_ami until detected || current_time > timeout print '.' sleep delay current_time += 30 detected = detect_ami end puts if current_time > timeout puts "ERROR: Timeout. Unable to detect and available ami: #{@options[:name]}" exit 1 else puts "Found available AMI: #{@options[:name]}" end end
Private Instance Methods
detect_ami(owners=["self"])
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Using custom detect_ami
instead of ec2.wait_until(:image_availalbe, …) because we start checking for the ami even before we've called create_ami. We start checking right after we launch the instance which will create the ami at the end.
# File lib/forger/waiter/ami.rb, line 39 def detect_ami(owners=["self"]) images = ec2.describe_images( owners: owners, filters: filters ).images detected = images.first !!detected end
filters()
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# File lib/forger/waiter/ami.rb, line 48 def filters name_is_ami_id = @options[:name] =~ /^ami-/ filters = [{name: "state", values: ["available"]}] filters << if name_is_ami_id {name: "image-id", values: [@options[:name]]} else {name: "name", values: [@options[:name]]} end filters end