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Contents
module AwsEc2::Waiter
class Ami < AwsEc2::Base
include AwsEc2::AwsService
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
# 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.
def detect_ami(owners=["self"])
images = ec2.describe_images(
owners: owners,
filters: filters
).images
detected = images.first
!!detected
end
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
end
end
Version data entries
15 entries across 15 versions & 1 rubygems