处理配置变更类型 (CTs)

{	
  "$schema": "http://json-schema.org/draft-04/schema#",
"name": "Create S3 Storage  
"description": "Use to create an Amazon Simple Storage Service stack.",
  "type": "object",
  "properties": {
    "Description": {
      "description": "The description of the stack.",
      "type": "string",
      "minLength": 1,
      "maxLength": 500
    },
    "VpcId": {
      "description": "ID of the VPC to create the S3 Bucket in, in the form vpc-a1b2c3d4e5f67890e.",
      "type": "string",
      "pattern": "^vpc-[a-z0-9]{17}$"
    },
    "StackTemplateId": {
      "description": "Required value: stm-s2b72beb000000000.",
      "type": "string",
      "enum": ["stm-s2b72beb000000000"]
    },
    "Name":{
      "description": "The name of the stack to create.",
      "type": "string",
      "minLength": 1,
      "maxLength": 255
    },
    "Tags": {
      "description": "Up to seven tags (key/value pairs) for the stack.",
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "Key": {
            "type": "string",
            "minLength": 1,
            "maxLength": 127
          },
          "Value": {
            "type": "string",
            "minLength": 1,
            "maxLength": 255
          }
        },
        "additionalProperties": false,
        "required": [
          "Key",
          "Value"
        ]
      },
      "minItems": 1,
      "maxItems": 7
    },
    "TimeoutInMinutes": {
      "description": "The amount of time, in minutes, to allow for creation of the stack.",
      "type": "number",
      "minimum": 0,
      "maximum": 60
    },
    "Parameters": {
      "description": "Specifications for the stack.",
      "type": "object",
      "properties": {
        "AccessControl": {
          "description": "The canned (predefined) access control list (ACL) to assign to the bucket.",
          "type": "string",
          "enum": [
            "Private",
            "PublicRead",
            "AuthenticatedRead",
            "BucketOwnerRead"
          ]
        },
        "BucketName": {
          "description": "A name for the bucket. The bucket name must contain only lowercase letters, numbers, periods (.), and hyphens (-).",
          "type": "string",
          "pattern": "^[a-z0-9]([-.a-z0-9]+)[a-z0-9]$",
          "minLength": 3,
          "maxLength": 63
        }
      },
      "additionalProperties": false,
      "required": [
        "AccessControl",
        "BucketName"
      ]
    }
  },
  "additionalProperties": false,
  "required": [
    "Description",
    "VpcId",
    "StackTemplateId",
    "Name",
    "TimeoutInMinutes",
    "Parameters"
  ]
}                

架构以 CT（“描述”）开头，它告诉你架构的用途。在本例中，用于创建 S3 存储堆栈。

接下来，您可以指定必填属性和可选属性。给出了默认的属性值。所需的属性列在架构的末尾。

在该 StackTemplateId 区域中，您可以看到此 CT 和架构有一个特定的堆栈模板，其 ID 是必填的属性值。

该架构允许您标记正在创建的堆栈，以用于内部记账。此外，某些选项（例如备份）需要标记 key: Backup 和 value: True。如需深入了解，请阅读标记您的 Amazon EC2 资源。

您可以在 CT JSON 架构的 “参数” 部分中提供执行参数。

对于此架构，只有 ACL 和 BucketName 是必需的执行参数。