使用Ruby获取AWS区域名称
我正在为AWS开发Rails应用程序，并希望为区域名称创建下拉菜单，例如“us-east-1”等。
如果有人已经创建了gem来获取它们，我想使用它。 有谁知道这样的gem或有用的API？
AWS SDK for Ruby（aws-sdk gem）支持枚举区域名称：
require 'aws-sdk' ec2 = AWS::EC2.new(:access_key_id => '...', :secret_access_key => '...') ec2.regions.map(&:name) => ["eu-west-1", "sa-east-1", "us-east-1", "ap-northeast-1", "us-west-2", "us-west-1", "ap-southeast-1"] 您还可以使用DescribeRegions调用的客户端界面：
ec2.client.describe_regions => { :region_info=>[ {:region_name=>"eu-west-1", :region_endpoint=>"ec2.eu-west-1.amazonaws.com"}, {:region_name=>"sa-east-1", :region_endpoint=>"ec2.sa-east-1.amazonaws.com"}, {:region_name=>"us-east-1", :region_endpoint=>"ec2.us-east-1.amazonaws.com"}, {:region_name=>"ap-northeast-1", :region_endpoint=>"ec2.ap-northeast-1.amazonaws.com"}, {:region_name=>"us-west-2", :region_endpoint=>"ec2.us-west-2.amazonaws.com"}, {:region_name=>"us-west-1", :region_endpoint=>"ec2.us-west-1.amazonaws.com"}, {:region_name=>"ap-southeast-1", :region_endpoint=>"ec2.ap-southeast-1.amazonaws.com"} ], :request_id=>"04458cac-bdf2-4847-bf1f-c7ea65813777" }
您可以在此处查看gem文档： http ： //docs.amazonwebservices.com/AWSRubySDK/latest/frames.html
我可以这样做：
>> `ec2-describe-regions`.scan(/REGION\s+(\S+)/).flatten => ["eu-west-1", "sa-east-1", "us-east-1", "ap-northeast-1", "us-west-2", "us-west-1", "ap-southeast-1"]