old_contents: #
  # Pseudo Parameters
  #
  
  AWS_ACCOUNT_ID = 'AWS::AccountId'
  AWS_NOTIFICATION_ARNS = 'AWS::NotificationARNs'
  AWS_NO_VALUE = 'AWS::NoValue'
  AWS_REGION = 'AWS::Region'
  AWS_STACK_ID = 'AWS::StackId'
  AWS_STACK_NAME = 'AWS::StackName'
  
  #
  # Regions
  #
  
  AP_NORTHEAST_1 = 'ap-northeast-1'
  AP_SOUTHEAST_1 = 'ap-southeast-1'
  AP_SOUTHEAST_2 = 'ap-southeast-2'
  EU_WEST_1 = 'eu-west-1'
  SA_EAST_1 = 'sa-east-1'
  US_EAST_1 = 'us-east-1'
  US_WEST_1 = 'us-west-1'
  US_WEST_2 = 'us-west-2'
  
  #
  # Availability Zones
  #
  
  AP_NORTHEAST_1A = 'ap-northeast-1a'
  AP_NORTHEAST_1B = 'ap-northeast-1b'
  AP_NORTHEAST_1C = 'ap-northeast-1c'
  
  AP_SOUTHEAST_1A = 'ap-southeast-1a'
  AP_SOUTHEAST_1B = 'ap-southeast-1b'
  
  AP_SOUTHEAST_2A = 'ap-southeast-2a'
  AP_SOUTHEAST_2B = 'ap-southeast-2b'
  
  EU_WEST_1A = 'eu-west-1a'
  EU_WEST_1B = 'eu-west-1b'
  EU_WEST_1C = 'eu-west-1c'
  
  SA_EAST_1A = 'sa-east-1a'
  SA_EAST_1B = 'sa-east-1b'
  
  US_EAST_1A = 'us-east-1a'
  US_EAST_1B = 'us-east-1b'
  US_EAST_1C = 'us-east-1c'
  US_EAST_1D = 'us-east-1d'
  US_EAST_1E = 'us-east-1e'
  
  US_WEST_1A = 'us-west-1a'
  US_WEST_1B = 'us-west-1b'
  US_WEST_1C = 'us-west-1c'
  
  US_WEST_2A = 'us-west-2a'
  US_WEST_2B = 'us-west-2b'
  US_WEST_2C = 'us-west-2c'
  
  #
  # Networking
  #
  
  QUAD_ZERO = '0.0.0.0/0'
  
new_contents: #
  # Pseudo Parameters
  #
  
  AWS_ACCOUNT_ID = 'AWS::AccountId'
  AWS_NOTIFICATION_ARNS = 'AWS::NotificationARNs'
  AWS_NO_VALUE = 'AWS::NoValue'
  AWS_REGION = 'AWS::Region'
  AWS_STACK_ID = 'AWS::StackId'
  AWS_STACK_NAME = 'AWS::StackName'
  
  #
  # Regions
  #
  
  AP_NORTHEAST_1 = 'ap-northeast-1'
  AP_SOUTHEAST_1 = 'ap-southeast-1'
  AP_SOUTHEAST_2 = 'ap-southeast-2'
  EU_WEST_1 = 'eu-west-1'
  SA_EAST_1 = 'sa-east-1'
  US_EAST_1 = 'us-east-1'
  US_WEST_1 = 'us-west-1'
  US_WEST_2 = 'us-west-2'
  
  #
  # Availability Zones
  #
  
  AP_NORTHEAST_1A = 'ap-northeast-1a'
  AP_NORTHEAST_1B = 'ap-northeast-1b'
  AP_NORTHEAST_1C = 'ap-northeast-1c'
  
  AP_SOUTHEAST_1A = 'ap-southeast-1a'
  AP_SOUTHEAST_1B = 'ap-southeast-1b'
  
  AP_SOUTHEAST_2A = 'ap-southeast-2a'
  AP_SOUTHEAST_2B = 'ap-southeast-2b'
  
  EU_WEST_1A = 'eu-west-1a'
  EU_WEST_1B = 'eu-west-1b'
  EU_WEST_1C = 'eu-west-1c'
  
  SA_EAST_1A = 'sa-east-1a'
  SA_EAST_1B = 'sa-east-1b'
  
  US_EAST_1A = 'us-east-1a'
  US_EAST_1B = 'us-east-1b'
  US_EAST_1C = 'us-east-1c'
  US_EAST_1D = 'us-east-1d'
  US_EAST_1E = 'us-east-1e'
  
  US_WEST_1A = 'us-west-1a'
  US_WEST_1B = 'us-west-1b'
  US_WEST_1C = 'us-west-1c'
  
  US_WEST_2A = 'us-west-2a'
  US_WEST_2B = 'us-west-2b'
  US_WEST_2C = 'us-west-2c'
  
  #
  # Networking
  #
  
  QUAD_ZERO = '0.0.0.0/0'
  
  #
  # EC2 instance types
  #
  
  T2_MICRO = 't2.micro'
  T2_SMALL = 't2.small'
  T2_MEDIUM = 't2.medium'
  
  M3_MEDIUM = 'm3.medium'
  M3_LARGE = 'm3.large'
  M3_XLARGE = 'm3.xlarge'
  M3_2XLARGE = 'm3.2xlarge'
  
  C3_LARGE = 'c3.large'
  C3_XLARGE = 'c3.xlarge'
  C3_2XLARGE = 'c3.2xlarge'
  C3_4XLARGE = 'c3.4xlarge'
  C3_8XLARGE = 'c3.8xlarge'
  
  R3_LARGE = 'r3.large'
  R3_XLARGE = 'r3.xlarge'
  R3_2XLARGE = 'r3.2xlarge'
  R3_4XLARGE = 'r3.4xlarge'
  R3_8XLARGE = 'r3.8xlarge'
  
  G2_2XLARGE = 'g2.2xlarge'
  
  I2_XLARGE = 'i2.xlarge'
  I2_2XLARGE = 'i2.2xlarge'
  I2_4XLARGE = 'i2.4xlarge'
  I2_8XLARGE = 'i2.8xlarge'
  
  HS1_8XLARGE = 'hs1.8xlarge'
  
  M1_SMALL = 'm1.small'
  M1_MEDIUM = 'm1.medium'
  M1_LARGE = 'm1.large'
  M1_XLARGE = 'm1.xlarge'
  
  C1_MEDIUM = 'c1.medium'
  C1_XLARGE = 'c1.xlarge'
  CC2_8XLARGE = 'cc2.8xlarge'
  
  CG1_4XLARGE = 'cg1.4xlarge'
  
  M2_XLARGE = 'm2.xlarge'
  M2_2XLARGE = 'm2.2xlarge'
  M2_4XLARGE = 'm2.4xlarge'
  CR1_8XLARGE = 'cr1.8xlarge'
  
  HI1_4XLARGE = 'hi1.4xlarge'
  
  T1_MICRO = 't1.micro'
  
subject: Add EC2 instance types