ALIYUN::ROS::Stack用於建立嵌套資源棧，最多支援5層嵌套。
嵌套資源棧本身可以包含其他嵌套資源棧，構成一個資源棧階層。根資源棧是所有嵌套資源棧最終歸屬的父資源棧，根資源棧的模板稱為頂層模板。ALIYUN::ROS::Stack類型在頂層模板中將資源棧作為資源進行嵌套。
您可以將嵌套資源棧模板中的一個資源棧的輸出用作另一個資源棧的輸入。您也可以使用Fn::GetAtt函數，將函數參數設定為嵌套資源棧的名稱和Outputs.NestedStackOutputName格式的輸出值，擷取嵌套資源棧的輸出。更多資訊，請參見使用嵌套資源棧。
文法
{
"Type": "ALIYUN::ROS::Stack",
"Properties": {
"TemplateURL": String,
"TemplateBody": String,
"TemplateId": String,
"TemplateVersion": String,
"TimeoutMins": Number,
"Parameters": Map,
"ResourceGroupId": String,
"Tags": List
}
}屬性
屬性名稱 | 類型 | 必須 | 允許更新 | 描述 | 約束 |
TemplateURL | String | 否 | 是 | 模板主體的檔案的位置。 | 模板主體的檔案最大為524,288個位元組，URL的最大長度為1024個位元組。 URL必須指向位於Web伺服器（HTTP、HTTPS）或阿里雲OSS儲存空間中的模板。例如： OSS地區如未指定，預設與資源棧RegionId相同。 您必須指定 |
TemplateBody | Map | 否 | 是 | 模板內容，用於簡化模板的傳遞。 | 內容為未經處理資料，函數只在子模板中生效，不在當前模板中生效。 您必須指定 |
TemplateId | String | 否 | 是 | 模板ID。 | 您必須指定 |
TemplateVersion | String | 否 | 是 | 模板版本名。 | 無 |
TimeoutMins | Number | 否 | 是 | 建立或更新資源棧的逾時時間。 | 單位：分。 預設值：60。 |
Parameters | Map | 否 | 是 | 一組索引值對，表示在建立此嵌套資源棧時傳遞給ROS的參數。 | Parameters中的每個鍵都對應於嵌套資源棧模板中的參數名，每個值對應於參數取值。如果嵌套資源棧需要輸入參數，則必須指定此參數。 |
ResourceGroupId | String | 否 | 否 | 資源群組ID。 | 無 |
Tags | List | 否 | 是 | 標籤列表。 | 最多支援20個標籤。更多資訊。請參見Tags屬性。 |
Tags文法
"Tags": [
{
"Key": String,
"Value": String
}
]Tags屬性
屬性名稱 | 類型 | 必須 | 允許更新 | 描述 | 約束 |
Key | String | 是 | 否 | 標籤鍵。 | 長度不超過128個字元，不能以 |
Value | String | 否 | 否 | 標籤值。 | 長度不超過128個字元，不能以 |
傳回值
Fn::GetAtt
您可以通過以下代碼，擷取嵌套資源棧的輸出。
{
"Fn::GetAtt": [
"<nested_stack>",
"Outputs.<nested_stack_output_name>"
]
}通過Ref引用嵌套資源棧資源時，將獲得嵌套資源棧的ARN。例如：arn:acs:ros::cn-hangzhou:12345****:stacks/test-nested-stack-Demo-jzkyq7mn****/e71c1e04-1a57-46fc-b9a4-cf7ce0d3****。
樣本
子資源棧建立VPC、vSwitch、安全性群組樣本（子資源棧模板儲存至oss://ros/template/vpc.txt）
YAML格式ROSTemplateFormatVersion: '2015-09-01' Description: One VPC, vSwitch, security group. Parameters: ZoneId: Type: String Description: The available zone SecurityGroupName: Type: String Description: The security group name Default: my-sg-name VpcName: Type: String Description: The VPC name MinLength: 2 MaxLength: 128 ConstraintDescription: '[2, 128] English or Chinese letters' Default: my-vpc-name VpcCidrBlock: Type: String AllowedValues: - 192.168.0.0/16 - 172.16.0.0/12 - 10.0.0.0/8 Default: 10.0.0.0/8 VSwitchCidrBlock: Type: String Description: The vSwitch subnet which must be within VPC Default: 10.0.10.0/24 UpdateVersion: Type: Number Default: 0 Resources: Vpc: Type: ALIYUN::ECS::VPC Properties: CidrBlock: Ref: VpcCidrBlock VpcName: Ref: VpcName VSwitch: Type: ALIYUN::ECS::VSwitch Properties: CidrBlock: Ref: VSwitchCidrBlock ZoneId: Ref: ZoneId VpcId: Fn::GetAtt: - Vpc - VpcId SecurityGroup: Type: ALIYUN::ECS::SecurityGroup Properties: SecurityGroupName: Ref: SecurityGroupName VpcId: Ref: Vpc WaitConditionHandle: Type: ALIYUN::ROS::WaitConditionHandle Properties: UpdateVersion: Ref: UpdateVersion Outputs: SecurityGroupId: Value: Fn::GetAtt: - SecurityGroup - SecurityGroupId VpcId: Value: Fn::GetAtt: - Vpc - VpcId VSwitchId: Value: Fn::GetAtt: - VSwitch - VSwitchIdJSON格式{ "ROSTemplateFormatVersion": "2015-09-01", "Description": "One VPC, vSwitch, security group.", "Parameters": { "ZoneId": { "Type": "String", "Description": "The available zone" }, "SecurityGroupName": { "Type": "String", "Description": "The security group name", "Default": "my-sg-name" }, "VpcName": { "Type": "String", "Description": "The VPC name", "MinLength": 2, "MaxLength": 128, "ConstraintDescription": "[2, 128] English or Chinese letters", "Default": "my-vpc-name" }, "VpcCidrBlock": { "Type": "String", "AllowedValues": [ "192.168.0.0/16", "172.16.0.0/12", "10.0.0.0/8" ], "Default": "10.0.0.0/8" }, "VSwitchCidrBlock": { "Type": "String", "Description": "The vSwitch subnet which must be within VPC", "Default": "10.0.10.0/24" }, "UpdateVersion": { "Type": "Number", "Default": 0 } }, "Resources": { "Vpc": { "Type": "ALIYUN::ECS::VPC", "Properties": { "CidrBlock": { "Ref": "VpcCidrBlock" }, "VpcName": { "Ref": "VpcName" } } }, "VSwitch": { "Type": "ALIYUN::ECS::VSwitch", "Properties": { "CidrBlock": { "Ref": "VSwitchCidrBlock" }, "ZoneId": { "Ref": "ZoneId" }, "VpcId": { "Fn::GetAtt": [ "Vpc", "VpcId" ] } } }, "SecurityGroup": { "Type": "ALIYUN::ECS::SecurityGroup", "Properties": { "SecurityGroupName": { "Ref": "SecurityGroupName" }, "VpcId": { "Ref": "Vpc" } } }, "WaitConditionHandle": { "Type": "ALIYUN::ROS::WaitConditionHandle", "Properties": { "UpdateVersion": { "Ref": "UpdateVersion" } } } }, "Outputs": { "SecurityGroupId": { "Value": { "Fn::GetAtt": [ "SecurityGroup", "SecurityGroupId" ] } }, "VpcId": { "Value": { "Fn::GetAtt": [ "Vpc", "VpcId" ] } }, "VSwitchId": { "Value": { "Fn::GetAtt": [ "VSwitch", "VSwitchId" ] } } } }
父資源棧樣本
YAML格式ROSTemplateFormatVersion: '2015-09-01' Description: One ECS instance. Parameters: ImageId: Default: centos_7 Type: String Description: Image Id, represents the image resource to startup the ECS instance InstanceType: Type: String Description: The ECS instance type, Default: ecs.xn4.small ZoneId: Type: String Description: 'The available zone ' InstanceChargeType: Type: String AllowedValues: - PrePaid - PostPaid Default: PostPaid Description: The instance charge type SecurityGroupName: Type: String Description: The security group name Default: my-sg-name NetworkInterfaceName: Type: String Description: The Network interface name Default: my-eni-name VpcName: Type: String Description: The VPC name MinLength: 2 MaxLength: 128 ConstraintDescription: '[2, 128] English or Chinese letters' Default: my-vpc-name IoOptimized: AllowedValues: - none - optimized Description: IO optimized, optimized is for the IO optimized instance type Type: String Default: optimized SystemDiskCategory: AllowedValues: - cloud - cloud_efficiency - cloud_ssd Description: 'System disk category: average cloud disk(cloud), efficient cloud disk(cloud_efficiency) or SSD cloud disk(cloud_ssd)' Type: String Default: cloud_ssd VpcCidrBlock: Type: String AllowedValues: - 192.168.0.0/16 - 172.16.0.0/12 - 10.0.0.0/8 Default: 10.0.0.0/8 VSwitchCidrBlock: Type: String Description: The VSwitch subnet which must be within VPC Default: 10.0.10.0/24 UpdateVersion: Type: Number Default: 0 Resources: NetworkStack: Type: ALIYUN::ROS::Stack Properties: TemplateURL: oss://ros/template/vpc.txt TimeoutMins: 5 Parameters: ZoneId: Ref: ZoneId SecurityGroupName: Ref: SecurityGroupName VpcName: Ref: VpcName VpcCidrBlock: Ref: VpcCidrBlock VSwitchCidrBlock: Ref: VSwitchCidrBlock UpdateVersion: Ref: UpdateVersion WebServer: Type: ALIYUN::ECS::Instance Properties: ImageId: Ref: ImageId InstanceType: Ref: InstanceType InstanceChargeType: Ref: InstanceChargeType SecurityGroupId: Fn::GetAtt: - NetworkStack - Outputs.SecurityGroupId VpcId: Fn::GetAtt: - NetworkStack - Outputs.VpcId VSwitchId: Fn::GetAtt: - NetworkStack - Outputs.VSwitchId IoOptimized: Ref: IoOptimized ZoneId: Ref: ZoneId SystemDisk_Category: Ref: SystemDiskCategory DiskMappings: - Category: cloud_ssd Size: 20 Outputs: InstanceId: Value: Fn::GetAtt: - WebServer - InstanceId PublicIp: Value: Fn::GetAtt: - WebServer - PublicIp SecurityGroupId: Value: Fn::GetAtt: - NetworkStack - Outputs.SecurityGroupId VpcId: Value: Fn::GetAtt: - NetworkStack - Outputs.VpcId VSwitchId: Value: Fn::GetAtt: - NetworkStack - Outputs.VSwitchId NetworkStackArn: Value: Ref: NetworkStackJSON格式{ "ROSTemplateFormatVersion": "2015-09-01", "Description": "One ECS instance.", "Parameters": { "ImageId": { "Default": "centos_7", "Type": "String", "Description": "Image Id, represents the image resource to startup the ECS instance" }, "InstanceType": { "Type": "String", "Description": "The ECS instance type,", "Default": "ecs.xn4.small" }, "ZoneId": { "Type": "String", "Description": "The available zone " }, "InstanceChargeType": { "Type": "String", "AllowedValues": [ "PrePaid", "PostPaid" ], "Default": "PostPaid", "Description": "The instance charge type" }, "SecurityGroupName": { "Type": "String", "Description": "The security group name", "Default": "my-sg-name" }, "NetworkInterfaceName": { "Type": "String", "Description": "The Network interface name", "Default": "my-eni-name" }, "VpcName": { "Type": "String", "Description": "The VPC name", "MinLength": 2, "MaxLength": 128, "ConstraintDescription": "[2, 128] English or Chinese letters", "Default": "my-vpc-name" }, "IoOptimized": { "AllowedValues": [ "none", "optimized" ], "Description": "IO optimized, optimized is for the IO optimized instance type", "Type": "String", "Default": "optimized" }, "SystemDiskCategory": { "AllowedValues": [ "cloud", "cloud_efficiency", "cloud_ssd" ], "Description": "System disk category: average cloud disk(cloud), efficient cloud disk(cloud_efficiency) or SSD cloud disk(cloud_ssd)", "Type": "String", "Default": "cloud_ssd" }, "VpcCidrBlock": { "Type": "String", "AllowedValues": [ "192.168.0.0/16", "172.16.0.0/12", "10.0.0.0/8" ], "Default": "10.0.0.0/8" }, "VSwitchCidrBlock": { "Type": "String", "Description": "The VSwitch subnet which must be within VPC", "Default": "10.0.10.0/24" }, "UpdateVersion": { "Type": "Number", "Default": 0 } }, "Resources": { "NetworkStack": { "Type": "ALIYUN::ROS::Stack", "Properties": { "TemplateURL": "oss://ros/template/vpc.txt", "TimeoutMins": 5, "Parameters": { "ZoneId": { "Ref": "ZoneId" }, "SecurityGroupName": { "Ref": "SecurityGroupName" }, "VpcName": { "Ref": "VpcName" }, "VpcCidrBlock": { "Ref": "VpcCidrBlock" }, "VSwitchCidrBlock": { "Ref": "VSwitchCidrBlock" }, "UpdateVersion": { "Ref": "UpdateVersion" } } } }, "WebServer": { "Type": "ALIYUN::ECS::Instance", "Properties": { "ImageId": { "Ref": "ImageId" }, "InstanceType": { "Ref": "InstanceType" }, "InstanceChargeType": { "Ref": "InstanceChargeType" }, "SecurityGroupId": { "Fn::GetAtt": [ "NetworkStack", "Outputs.SecurityGroupId" ] }, "VpcId": { "Fn::GetAtt": [ "NetworkStack", "Outputs.VpcId" ] }, "VSwitchId": { "Fn::GetAtt": [ "NetworkStack", "Outputs.VSwitchId" ] }, "IoOptimized": { "Ref": "IoOptimized" }, "ZoneId": { "Ref": "ZoneId" }, "SystemDisk_Category": { "Ref": "SystemDiskCategory" }, "DiskMappings": [ { "Category": "cloud_ssd", "Size": 20 } ] } } }, "Outputs": { "InstanceId": { "Value": { "Fn::GetAtt": [ "WebServer", "InstanceId" ] } }, "PublicIp": { "Value": { "Fn::GetAtt": [ "WebServer", "PublicIp" ] } }, "SecurityGroupId": { "Value": { "Fn::GetAtt": [ "NetworkStack", "Outputs.SecurityGroupId" ] } }, "VpcId": { "Value": { "Fn::GetAtt": [ "NetworkStack", "Outputs.VpcId" ] } }, "VSwitchId": { "Value": { "Fn::GetAtt": [ "NetworkStack", "Outputs.VSwitchId" ] } }, "NetworkStackArn": { "Value": { "Ref": "NetworkStack" } } } }