Class: CopyMsWindowsSnapshot::SourceInstanceLaunchedState

Inherits:

CopyMsWindowsSnapshotState

• Object
• ScriptExecutionState
• CopyMsWindowsSnapshotState
• CopyMsWindowsSnapshot::SourceInstanceLaunchedState

Defined in:

lib/scripts/ec2/copy_mswindows_snapshot.rb

Overview

Source instance is started. Steps:

- create and attach a volume from the Snapshot of the AMI to copy
- create and attach a temp volume of the same size to dump and compress the entire drive
- create a filesystem on the temp volume and mount the temp volume
- dump and compress the entire drive to the temp volume

Instance Attribute Summary

Attributes inherited from ScriptExecutionState

#context, #logger

Instance Method Summary

• #enter ⇒ Object

Methods inherited from CopyMsWindowsSnapshotState

load_state, #local_region, #remote_region

Methods inherited from ScriptExecutionState

#done?, #end_state, #failed?, #get_superclass_name, #initialize, #register_state_change_listener, #start_state_machine, #to_s

Methods included from StateTransitionHelper

#attach_volume, #connect, #copy_distribution, #create_fs, #create_image_from_instance, #create_labeled_fs, #create_security_group_with_rules, #create_snapshot, #create_volume, #create_volume_from_snapshot, #delete_security_group, #delete_snapshot, #delete_volume, #describe_instance, #detach_volume, #determine_file, #disable_ssh_tty, #disconnect, #ec2_handler, #ec2_handler=, #enable_ssh_tty, #get_aws_kernel_image_aki, #get_aws_region_from_endpoint, #get_partition_count, #get_partition_fs_type, #get_partition_fs_type_and_label, #get_partition_label, #get_partition_table, #get_root_device_name, #get_root_partition_fs_type, #get_root_partition_fs_type_and_label, #get_root_partition_label, #get_root_volume_id, #launch_instance, #local_decompress_and_dump_file_to_device, #local_dump_and_compress_device_to_file, #local_dump_device_to_file, #local_dump_file_to_device, #mount_fs, #mount_fs_old, #register_snapshot, #remote_copy, #remote_copy_old, #remote_handler, #remote_handler=, #retrieve_instances, #retrieve_security_groups, #set_partition_table, #shut_down_instance, #snapshot_accessible, #start_instance, #stop_instance, #unmount_fs, #upload_file, #zip_volume

Methods included from VCloudTransitionHelper

#retrieve_ip_services

Constructor Details

This class inherits a constructor from ScriptExecutionState

Instance Method Details

#enter ⇒ Object

# File 'lib/scripts/ec2/copy_mswindows_snapshot.rb', line 207

def enter()
  local_region()
  # Step1: create and attach a volume from the Snapshot of the AMI to copy
  @context[:source_volume_id] = create_volume_from_snapshot(@context[:snapshot_id],
    @context[:source_availability_zone])
  source_device = @context[:device_name]
  attach_volume(@context[:source_volume_id], @context[:source_instance_id], source_device, Ec2Script::CS_AWS_TIMEOUT)
  connect(@context[:source_dns_name], @context[:source_ssh_username], nil, @context[:source_ssh_keydata]) 
  # detect if there is a shift for device mapping (between AWS and the operating system of the system)
  root_device_name = get_root_device_name()
  # detect letters
  aws_root_device = @context[:source_root_device_name]
  aws_letter = aws_root_device.split('/')[2].gsub('sd', '').gsub('xvd', '').gsub(/[0-9]/, '')
  os_letter = root_device_name.split('/')[2].gsub('sd', '').gsub('xvd', '').gsub(/[0-9]/, '')
  aws_device_letter = source_device.split('/')[2].gsub('sd', '').gsub('xvd', '').gsub(/[0-9]/, '')
  if !aws_letter.eql?(os_letter)
    post_message("Detected specific kernel with shift between AWS and Kernel OS for device naming")
  end
  while !aws_letter.eql?(os_letter)
    aws_letter.succ!
    aws_device_letter.succ!
  end
  source_device = "/dev/sd#{aws_device_letter}"
  post_message("Using AWS name source device '#{@context[:device_name]}' and OS name '#{source_device}'")
  @context[:source_device_name] = source_device
  # Step2: create and attach a temp volume of the same size to dump and compress the entire drive
  if @context[:compression]
    @context[:source_temp_volume_id] = create_volume(@context[:source_availability_zone], @context[:volume_size])
  else
    @context[:source_temp_volume_id] = create_volume(@context[:source_availability_zone], @context[:volume_size] + 4)
  end
  temp_device = @context[:temp_device_name] 
  attach_volume(@context[:source_temp_volume_id], @context[:source_instance_id], temp_device, Ec2Script::CS_AWS_TIMEOUT)
  aws_device_letter = temp_device.split('/')[2].gsub('sd', '').gsub('xvd', '').gsub(/[0-9]/, '')
  while !aws_letter.eql?(os_letter)
    aws_letter.succ!
    aws_device_letter.succ!
  end
  temp_device="/dev/sd#{aws_device_letter}" 
  post_message("Using AWS name source device '#{@context[:temp_device_name]}' and OS name '#{temp_device}'") 
  # Step3: mount the temp volume
  mount_point = "/mnt/tmp_#{@context[:source_temp_volume_id]}"
  create_labeled_fs(@context[:source_dns_name], temp_device, @context[:fs_type], nil)
  mount_fs(mount_point, temp_device)
  disconnect()

  SourceVolumeReadyState.new(@context)
end