[ aws . ssm ]



Retrieves information about the maintenance window targets or tasks that an instance is associated with.

See also: AWS API Documentation

See ‘aws help’ for descriptions of global parameters.

describe-maintenance-windows-for-target is a paginated operation. Multiple API calls may be issued in order to retrieve the entire data set of results. You can disable pagination by providing the --no-paginate argument. When using --output text and the --query argument on a paginated response, the --query argument must extract data from the results of the following query expressions: WindowIdentities


--targets <value>
--resource-type <value>
[--cli-input-json | --cli-input-yaml]
[--starting-token <value>]
[--page-size <value>]
[--max-items <value>]
[--generate-cli-skeleton <value>]


--targets (list)

The instance ID or key/value pair to retrieve information about.


An array of search criteria that targets instances using a Key,Value combination that you specify.


One or more targets must be specified for maintenance window Run Command-type tasks. Depending on the task, targets are optional for other maintenance window task types (Automation, AWS Lambda, and AWS Step Functions). For more information about running tasks that do not specify targets, see Registering maintenance window tasks without targets in the AWS Systems Manager User Guide .

Supported formats include the following.

  • ``Key=InstanceIds,Values=*instance-id-1* ,*instance-id-2* ,*instance-id-3* ``

  • ``Key=tag:my-tag-key ,Values=*my-tag-value-1* ,*my-tag-value-2* ``

  • ``Key=tag-key,Values=*my-tag-key-1* ,*my-tag-key-2* ``

  • Run Command and Maintenance window targets only : ``Key=resource-groups:Name,Values=*resource-group-name* ``

  • Maintenance window targets only : ``Key=resource-groups:ResourceTypeFilters,Values=*resource-type-1* ,*resource-type-2* ``

  • Automation targets only : ``Key=ResourceGroup;Values=*resource-group-name* ``

For example:

  • Key=InstanceIds,Values=i-02573cafcfEXAMPLE,i-0471e04240EXAMPLE,i-07782c72faEXAMPLE

  • Key=tag:CostCenter,Values=CostCenter1,CostCenter2,CostCenter3

  • Key=tag-key,Values=Name,Instance-Type,CostCenter

  • Run Command and Maintenance window targets only : Key=resource-groups:Name,Values=ProductionResourceGroup This example demonstrates how to target all resources in the resource group ProductionResourceGroup in your maintenance window.

  • Maintenance window targets only : ``Key=resource-groups:ResourceTypeFilters,Values=*AWS::EC2::INSTANCE* ,*AWS::EC2::VPC* `` This example demonstrates how to target only EC2 instances and VPCs in your maintenance window.

  • Automation targets only : Key=ResourceGroup,Values=MyResourceGroup

  • State Manager association targets only : Key=InstanceIds,Values=* This example demonstrates how to target all managed instances in the AWS Region where the association was created.

For more information about how to send commands that target instances using Key,Value parameters, see Targeting multiple instances in the AWS Systems Manager User Guide .

Key -> (string)

User-defined criteria for sending commands that target instances that meet the criteria.

Values -> (list)

User-defined criteria that maps to Key . For example, if you specified tag:ServerRole , you could specify value:WebServer to run a command on instances that include EC2 tags of ServerRole,WebServer .


Shorthand Syntax:

Key=string,Values=string,string ...

JSON Syntax:

    "Key": "string",
    "Values": ["string", ...]

--resource-type (string)

The type of resource you want to retrieve information about. For example, “INSTANCE”.

Possible values:



--cli-input-json | --cli-input-yaml (string) Reads arguments from the JSON string provided. The JSON string follows the format provided by --generate-cli-skeleton. If other arguments are provided on the command line, those values will override the JSON-provided values. It is not possible to pass arbitrary binary values using a JSON-provided value as the string will be taken literally. This may not be specified along with --cli-input-yaml.

--starting-token (string)

A token to specify where to start paginating. This is the NextToken from a previously truncated response.

For usage examples, see Pagination in the AWS Command Line Interface User Guide .

--page-size (integer)

The size of each page to get in the AWS service call. This does not affect the number of items returned in the command’s output. Setting a smaller page size results in more calls to the AWS service, retrieving fewer items in each call. This can help prevent the AWS service calls from timing out.

For usage examples, see Pagination in the AWS Command Line Interface User Guide .

--max-items (integer)

The total number of items to return in the command’s output. If the total number of items available is more than the value specified, a NextToken is provided in the command’s output. To resume pagination, provide the NextToken value in the starting-token argument of a subsequent command. Do not use the NextToken response element directly outside of the AWS CLI.

For usage examples, see Pagination in the AWS Command Line Interface User Guide .

--generate-cli-skeleton (string) Prints a JSON skeleton to standard output without sending an API request. If provided with no value or the value input, prints a sample input JSON that can be used as an argument for --cli-input-json. Similarly, if provided yaml-input it will print a sample input YAML that can be used with --cli-input-yaml. If provided with the value output, it validates the command inputs and returns a sample output JSON for that command.

See ‘aws help’ for descriptions of global parameters.


To list all maintenance windows associated with a specific instance

The follwoing describe-maintenance-windows-for-target example lists the maintenance windows that have targets or tasks associated with the specified instance.

aws ssm describe-maintenance-windows-for-target \
    --targets Key=InstanceIds,Values=i-1234567890EXAMPLE \
    --resource-type INSTANCE


    "WindowIdentities": [
            "WindowId": "mw-0c5ed765acEXAMPLE",
            "Name": "My-First-Maintenance-Window"

For more information, see View Information About Maintenance Windows (AWS CLI) in the AWS Systems Manager User Guide.


WindowIdentities -> (list)

Information about the maintenance window targets and tasks an instance is associated with.


The maintenance window to which the specified target belongs.

WindowId -> (string)

The ID of the maintenance window.

Name -> (string)

The name of the maintenance window.

NextToken -> (string)

The token for the next set of items to return. (You use this token in the next call.)