ALIYUN::ECS::Command is used to create a Cloud Assistant command.

Syntax

{
  "Type": "ALIYUN::ECS::Command",
  "Properties": {
    "Name": String,
    "WorkingDir": String,
    "CommandContent": String,
    "Timeout": Integer,
    "Type": String,
    "Description": String,
    "EnableParameter": Boolean
  }
}

Properties

Property Type Required Editable Description Constraint
Name String No Yes The name of the command. The name must be 1 to 128 characters in length. All character sets are supported.
WorkingDir String No Yes The working directory on the ECS instance where the command will be run. Default value:
  • Linux instance: the home directory of the root user, which is the /root directory.
  • Windows instance: the directory where the Cloud Assistant client process resides, such as C:\Windows\System32\.
CommandContent String No No The Base64-encoded content of the command. The parameter value must be Base64-encoded and cannot exceed 16 KB in size after encoding.
The command content can be specified by using custom parameters. To enable custom parameters, you must set EnableParameter to true.
  • You can define parameters by enclosing them in nested braces {{}}. The spaces and line breaks before and after parameter names in {{}} are ignored.
  • The number of custom parameters cannot exceed 20.
  • The name of a custom parameter can contain letters and digits and is case-insensitive.
  • Each custom parameter name cannot exceed 64 characters in length.
Timeout Integer No Yes The timeout period that is specified for the command to run on ECS instances.

If the command fails to run within the specified period, the command times out and the command process is forcibly terminated.

Default value: 60.

Unit: seconds.
Type String Yes No The type of the command. Valid values:
  • RunBatScript: creates a batch command for a Windows instance.
  • RunPowerShellScript: creates a PowerShell command for a Windows instance.
  • RunShellScript: creates a Shell command for a Linux instance.
Description String No Yes The description of the command. The description must be 1 to 512 characters in length. All character sets are supported.
EnableParameter Boolean No No Specifies whether the created command uses custom parameters. Default value: false. Valid values:
  • true
  • false

Response parameters

Fn::GetAtt

CommandId: the ID of the command.

Examples

JSON format 

{
  "ROSTemplateFormatVersion": "2015-09-01",
  "Parameters": {
    "WorkingDir": {
      "Type": "String",
      "Description": "The path where command will be executed in the instance."
    },
    "CommandContent": {
      "Type": "String",
      "Description": "The content of command. Content requires base64 encoding. Maximum size support 16KB."
    },
    "Type": {
      "Type": "String",
      "Description": "The type of command."
    },
    "Description": {
      "Type": "String",
      "Description": "The description of command."
    },
    "Timeout": {
      "Type": "Number",
      "Description": "Total timeout when the command is executed in the instance. Input the time unit as second. Default is 60s."
    },
    "EnableParameter": {
      "Type": "Boolean",
      "Description": "Specifies whether the script contains custom parameters.\nDefault value: false",
      "AllowedValues": [
        true,
        false
      ]
    },
    "Name": {
      "Type": "String",
      "Description": "The name of command."
    }
  },
  "Resources": {
    "Command": {
      "Type": "ALIYUN::ECS::Command",
      "Properties": {
        "WorkingDir": {
          "Ref": "WorkingDir"
        },
        "CommandContent": {
          "Ref": "CommandContent"
        },
        "Type": {
          "Ref": "Type"
        },
        "Description": {
          "Ref": "Description"
        },
        "Timeout": {
          "Ref": "Timeout"
        },
        "EnableParameter": {
          "Ref": "EnableParameter"
        },
        "Name": {
          "Ref": "Name"
        }
      }
    }
  },
  "Outputs": {
    "CommandId": {
      "Description": "The id of command created.",
      "Value": {
        "Fn::GetAtt": [
          "Command",
          "CommandId"
        ]
      }
    }
  }
}

YAML format 

ROSTemplateFormatVersion: '2015-09-01'
Parameters:
  WorkingDir:
    Type: String
    Description: The path where command will be executed in the instance.
  CommandContent:
    Type: String
    Description: >-
      The content of command. Content requires base64 encoding. Maximum size
      support 16KB.
  Type:
    Type: String
    Description: The type of command.
  Description:
    Type: String
    Description: The description of command.
  Timeout:
    Type: Number
    Description: >-
      Total timeout when the command is executed in the instance. Input the time
      unit as second. Default is 60s.
  EnableParameter:
    Type: Boolean
    Description: |-
      Specifies whether the script contains custom parameters.
      Default value: false
    AllowedValues:
      - true
      - false
  Name:
    Type: String
    Description: The name of command.
Resources:
  Command:
    Type: 'ALIYUN::ECS::Command'
    Properties:
      WorkingDir:
        Ref: WorkingDir
      CommandContent:
        Ref: CommandContent
      Type:
        Ref: Type
      Description:
        Ref: Description
      Timeout:
        Ref: Timeout
      EnableParameter:
        Ref: EnableParameter
      Name:
        Ref: Name
Outputs:
  CommandId:
    Description: The id of command created.
    Value:
      'Fn::GetAtt':
        - Command
        - CommandId