Module: AwsRegion

Defined in:
lib/ec2/amitools/region.rb

Overview

Module to hold region informations

Constant Summary collapse

AWS_REGIONS = 
[
  'eu-west-1',
  'eu-central-1',
  'us-east-1',
  'us-gov-west-1',
  'cn-north-1',
  'us-west-1',
  'us-west-2',
  'ap-southeast-1',
  'ap-southeast-2',
  'ap-northeast-1',
  'sa-east-1',
]
S3_LOCATIONS = 
[
  'EU', 'eu-west-1',
  'eu-central-1',
  'US',
  'us-gov-west-1',
  'cn-north-1',
  'us-west-1',
  'us-west-2',
  'ap-southeast-1',
  'ap-southeast-2',
  'ap-northeast-1',
  'sa-east-1',
]

Class Method Summary collapse

Class Method Details

.determine_region_from_host(host) ⇒ Object 



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# File 'lib/ec2/amitools/region.rb', line 46

def determine_region_from_host host
  # http://docs.aws.amazon.com/general/latest/gr/rande.html#s3_region
  if host == "s3.amazonaws.com" || host == "s3-external-1.amazonaws.com"
    "us-east-1"
  elsif
    domains = host.split(".")
    # handle s3-$REGION.amazonaws.something
    if domains.length >= 3 && domains[0].start_with?("s3-")
      domains[0].sub("s3-", "")
    # handle s3.$REGION.amazonaws.something, this is specific to the cn-north-1 endpoint
    elsif domains.length >= 3 && domains[0] == "s3"
      domains[1]
    else
      "us-east-1"
    end
  end
end

.get_s3_location(region) ⇒ Object 



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# File 'lib/ec2/amitools/region.rb', line 74

def get_s3_location(region)
  if (region == "eu-west-1")
    return 'EU'
  elsif (region == "us-east-1")
    return :unconstrained
  else
    return region
  end
end

.guess_region_from_s3_bucket(location) ⇒ Object 



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# File 'lib/ec2/amitools/region.rb', line 64

def guess_region_from_s3_bucket(location)
  if (location == "EU")
    return "eu-west-1"
  elsif ((location == "US") || (location == "") || (location.nil?))
    return "us-east-1"
  else 
    return location
  end
end

.regions ⇒ Object 



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# File 'lib/ec2/amitools/region.rb', line 84

def regions
  AWS_REGIONS
end

.s3_locations ⇒ Object 



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# File 'lib/ec2/amitools/region.rb', line 88

def s3_locations
  S3_LOCATIONS
end