aws:executeScript – Run a script

Runs the Python or PowerShell script provided using the specified runtime and handler. (For PowerShell, the handler is not required.)

Currently, the aws:executeScript action contains the following preinstalled PowerShell Core modules.

• Microsoft.PowerShell.Host

• Microsoft.PowerShell.Management

• Microsoft.PowerShell.Security

• Microsoft.PowerShell.Utility

• PackageManagement

• PowerShellGet

To use PowerShell Core modules that are not preinstalled, your script must install the module with the -Force flag, as shown in the following command.

Install-Module ModuleName -Force

To use PowerShell Core cmdlets in your script, we recommend using the AWS.Tools modules, as shown in the following commands.

Important

Installing the AWSPowerShell.NetCore module is not supported.

• Amazon S3 cmdlets.

  Install-Module AWS.Tools.S3 -Force
  Get-S3Bucket -BucketName bucketname

• Amazon EC2 cmdlets.

  Install-Module AWS.Tools.EC2 -Force
  Get-EC2InstanceStatus -InstanceId instanceId

• Common, or service independent AWS Tools for Windows PowerShell cmdlets.

  Install-Module AWS.Tools.Common -Force
  Get-AWSRegion

If your script initializes new objects in addition to using PowerShell Core cmdlets, you must also import the module as shown in the following command.

Install-Module AWS.Tools.EC2 -Force
Import-Module AWS.Tools.EC2

$tag = New-Object Amazon.EC2.Model.Tag
$tag.Key = "myTag"
$tag.Value = "myTagValue"

New-EC2Tag -Resource i-12345678 -Tag $tag

For examples of installing and importing AWS.Tools modules, and using PowerShell Core cmdlets in runbooks, see Walkthrough: Using Document Builder to create a custom runbook.

Note

Each aws:executeScript action can run up to a maximum duration of 600 seconds (ten minutes). You can limit the timeout by specifying the timeoutSeconds parameter for an aws:executeScript step.

Input

Provide the runtime and handler required to run the provided Python 3.6, Python 3.7, or PowerShell Core 6.0 script.

Important

The script input parameter is not supported for JSON runbooks. JSON runbooks must provide script content using the attachment input parameter.

YAML

action: "aws:executeScript"
inputs: 
 Runtime: "python3.6"
 Handler: "script_handler"
 InputPayload: 
  "parameter1": "parameter_value1"
  "parameter2": "parameter_value2"
 Script: 
  - 
   "def script_handler(events, context):"
  - 
   "(script commands)"
 Attachment: "zip-file-name-1.zip"

JSON

{
    "action": "aws:executeScript",
    "inputs": {
        "Runtime": "python3.6",
        "Handler": "script_handler",
        "InputPayload": {
            "parameter1": "parameter_value1",
            "parameter2": "parameter_value2"
        },
        "Attachment": "zip-file-name-1.zip"
    }
}

Runtime

The runtime language to be used for executing the provided script. Currently, aws:executeScript supports Python 3.6 (python3.6), Python 3.7 (python3.7), and PowerShell Core 6.0 (dotnetcore2.1) scripts.

Supported values: python3.6 | python3.7 | PowerShell Core 6.0

Type: String

Required: Yes

Handler

The entry for running the script, usually a function name. You must ensure the function defined in the handler has two parameters, events and context. (Not required for PowerShell.)

Type: String

Required: Yes (Python) | No (PowerShell)

InputPayload

A JSON or YAML object that will be passed to the first parameter of the handler. This can be used to pass input data to the script.

Type: String

Required: No

Script

An embedded script that you want to run during the automation. (Not supported for JSON runbooks.)

Type: String

Required: No (Python) | Yes (PowerShell)

Attachment

The name of a standalone script file or .zip file that can be invoked by the action. To invoke a file for Python, use the filename.method_name format in Handler. For PowerShell, invoke the attachment using and inline script. Gzip is not supported.

When including Python libraries in your attachment, we recommend adding an empty __init__.py file in each module directory. This enables you to import the modules from the library in your attachment within your script content. For example: from library import module

Type: String

Required: No

Output

Payload

The JSON representation of the object returned by your function.