Class: Builderator::Tasks::Packer

Inherits:
Thor
  • Object
show all
Includes:
Thor::Actions
Defined in:
lib/builderator/tasks/packer.rb

Overview

Wrap Packer commands

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Thor::Actions

#run, #run_with_input, #run_without_bundler, #template, #thor_run

Class Method Details

.exit_on_failure? ⇒ Boolean 



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# File 'lib/builderator/tasks/packer.rb', line 17

def self.exit_on_failure?
  true
end

Instance Method Details

#build(profile = :default, *args) ⇒ Object 



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# File 'lib/builderator/tasks/packer.rb', line 32

def build(profile = :default, *args)
  invoke :configure, [profile], options
  run_with_input "#{Interface.packer.command} build #{options['debug'] ? '-debug -on-error=abort' : ''} - #{args.join('')}", Interface.packer.render
end

#configure(profile = :default) ⇒ Object 



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# File 'lib/builderator/tasks/packer.rb', line 24

def configure(profile = :default)
  Config.profile.use(profile)

  invoke Tasks::Version, :current, [], options
  puts Interface.packer.render if options['debug']
end

#copy(profile) ⇒ Object 



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# File 'lib/builderator/tasks/packer.rb', line 38

def copy(profile)
  invoke :configure, [profile], options

  images.each do |image_name, (image, build)|
    parameters = {
      :source_region => Config.aws.region,
      :source_image_id => image.image_id,
      :name => image_name,
      :description => image.description
    }

    build.ami_regions.each do |region|
      say_status :copy, "image #{image_name} (#{image.image_id}) from #{Config.aws.region} to #{region}"
      copy_image(region, parameters)
    end
  end

  invoke :wait, [profile], options
  invoke :tag, [profile], options
  invoke :share, [profile], options
end

#remote_tag(profile) ⇒ Object 



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# File 'lib/builderator/tasks/packer.rb', line 124

def remote_tag(profile)
  invoke :configure, [profile], options

  allowed_cred_keys = %w(access_key_id secret_access_key session_token)

  images.each do |image_name, (image, build)|
    ami_regions = build.ami_regions
    ami_regions << Config.aws.region
    ami_regions.uniq!
    ami_regions.each do |region|

      sts_client = Aws::STS::Client.new(region: region)

      if build.tagging_role.nil?
        say_status :complete, 'No remote tagging to be performed as no IAM role is defined'
        return
      end

      regional_image = find_image(region, image_name)

      build.ami_users.each do ||
        role_arn = "arn:aws:iam::#{account}:role/#{build.tagging_role}"
        begin
          response = sts_client.assume_role( :role_arn => role_arn, :role_session_name => "tag-new-ami")
          raise "Could not assume role [#{role_arn}].  Perhaps it does not exist?" unless response.successful?
        rescue => e
          say_status :skip, "Got error when trying to assume role: #{e.message} - continuing."
          next
        end

        creds_hash = response.credentials.to_h.keep_if { |k,v| allowed_cred_keys.include?(k.to_s) }

        say_status :remote_tag, "Tag AMI #{image_name} (#{regional_image.image_id}) in #{region} (#{account})"
        Util.ec2(region, creds_hash)
            .create_tags(:dry_run => false, :resources => [regional_image.image_id], :tags => image.tags)
      end
    end
  end
  say_status :complete, 'Remote tagging complete'
end

#share(profile) ⇒ Object 



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# File 'lib/builderator/tasks/packer.rb', line 166

def share(profile)
  invoke :configure, [profile], options

  shared = false

  images.each do |image_name, (image, build)|
    build.ami_regions.each do |region|
      build.ami_users.each do |user|
        shared = true

        regional_image = find_image(region, image_name)

        say_status :share, "image #{image_name} (#{regional_image.image_id}) with #{user}"

        share_image_parameters = {
          :image_id => regional_image.image_id,
          :launch_permission => {
            :add => [
              {
                :user_id => user
              }
            ]
          }
        }

        Util.ec2(region).modify_image_attribute(share_image_parameters)
      end
    end
  end
  say_status :complete, 'All images are shared' if shared
end

#tag(profile) ⇒ Object 



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# File 'lib/builderator/tasks/packer.rb', line 61

def tag(profile)
  invoke :configure, [profile], options

  images.each do |image_name, (image, build)|
    ## Add some additional tags about the regional source
    image.tags << {
      :key => 'source_region',
      :value => Config.aws.region
    }
    image.tags << {
      :key => 'source_ami',
      :value => image.image_id
    }

    build.ami_regions.each do |region|
      regional_image = find_image(region, image_name)

      say_status :tag, "AMI #{image_name} (#{regional_image.image_id}) in #{region}"
      Util.ec2(region).create_tags(:resources => [regional_image.image_id], :tags => image.tags)
    end
  end
end

#wait(profile) ⇒ Object 



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# File 'lib/builderator/tasks/packer.rb', line 85

def wait(profile)
  invoke :configure, [profile], options

  waiting = true

  images.each do |image_name, (image, build)|
    say_status :wait, "for #{image.image_id} (#{image_name}) to be available in #{build.ami_regions.join(', ')}", :yellow
  end

  while waiting
    waiting = false

    images.each do |image_name, (image, build)|
      build.ami_regions.each do |region|
        regional_image = find_image(region, image_name)

        ## It takes a few seconds for the new AMI to show up in the `describe_images` response-set
        state = regional_image.nil? ? 'unknown' : regional_image.state
        image_id = regional_image.nil? ? 'unknown' : regional_image.image_id

        waiting = (state != 'available') || waiting
        status_color = case state
                       when 'pending', 'unknown' then :yellow
                       when 'available' then :green
                       else :red
                       end

        say_status :image, "#{image_id} (#{image.name}) is #{state} in #{region}", status_color
      end
    end

    ## If waiting == false, loop immediately to break
    sleep(20) if waiting
  end

  say_status :complete, 'All copied images are available'
end