问解析ruby脚本中的JSON文件并存储特定值

EN

"terraform": [
    {
  "backend": [
    {
      "s3": [
        {
          "bucket": "terraform-dev",
          "dynamodb": "terraform_files",
          "encrypt": "true",
          "key": "Apple/Employee/Background/terraform.tfstate"
        }
      ]
     }
  ],
  "required_version": "~> 0.11.8"
}
] 

#!/usr/bin/env ruby
require "json"
file = File.open "/Users/Test/conf.json"
data = JSON.load file
mykey= data['terraform'].first['backend']['s3']['key']
print mykey
file.close