Use DescribeMaintenanceWindowTasks with an Amazon SDK or CLI - Amazon Systems Manager
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Use DescribeMaintenanceWindowTasks with an Amazon SDK or CLI

The following code examples show how to use DescribeMaintenanceWindowTasks.

CLI
Amazon CLI

Example 1: To list all tasks for a maintenance window

The following describe-maintenance-window-tasks example lists all of the tasks for the specified maintenance window.

aws ssm describe-maintenance-window-tasks \
    --window-id "mw-06cf17cbefEXAMPLE"

Output:

{
    "Tasks": [
        {
            "WindowId": "mw-06cf17cbefEXAMPLE",
            "WindowTaskId": "018b31c3-2d77-4b9e-bd48-c91edEXAMPLE",
            "TaskArn": "AWS-RestartEC2Instance",
            "TaskParameters": {},
            "Type": "AUTOMATION",
            "Description": "Restarting EC2 Instance for maintenance",
            "MaxConcurrency": "1",
            "MaxErrors": "1",
            "Name": "My-Automation-Example-Task",
            "Priority": 0,
            "ServiceRoleArn": "arn:aws:iam::111222333444:role/aws-service-role/ssm.amazonaws.com/AWSServiceRoleForAmazonSSM",
            "Targets": [
                {
                    "Key": "WindowTargetIds",
                    "Values": [
                        "da89dcc3-7f9c-481d-ba2b-edcb7EXAMPLE"
                    ]
                }
            ]
        },
        {
            "WindowId": "mw-06cf17cbefEXAMPLE",
            "WindowTaskId": "1943dee0-0a17-4978-9bf4-3cc2fEXAMPLE",
            "TaskArn": "AWS-DisableS3BucketPublicReadWrite",
            "TaskParameters": {},
            "Type": "AUTOMATION",
            "Description": "Automation task to disable read/write access on public S3 buckets",
            "MaxConcurrency": "10",
            "MaxErrors": "5",
            "Name": "My-Disable-S3-Public-Read-Write-Access-Automation-Task",
            "Priority": 0,
            "ServiceRoleArn": "arn:aws:iam::111222333444:role/aws-service-role/ssm.amazonaws.com/AWSServiceRoleForAmazonSSM",
            "Targets": [
                {
                    "Key": "WindowTargetIds",
                    "Values": [
                        "da89dcc3-7f9c-481d-ba2b-edcb7EXAMPLE"
                    ]
                }
            ]
        }
    ]
}

Example 2: To list all tasks for a maintenance window that invokes the Amazon-RunPowerShellScript command document

The following describe-maintenance-window-tasks example lists all of the tasks for the specified maintenance window that invokes the AWS-RunPowerShellScript command document.

aws ssm describe-maintenance-window-tasks \
    --window-id "mw-ab12cd34eEXAMPLE" \
    --filters "Key=TaskArn,Values=AWS-RunPowerShellScript"

Output:

{
    "Tasks": [
        {
            "WindowId": "mw-ab12cd34eEXAMPLE",
            "WindowTaskId": "0d36e6b4-3a4f-411e-adcb-3558eEXAMPLE",
            "TaskArn": "AWS-RunPowerShellScript",
            "Type": "RUN_COMMAND",
            "Targets": [
                {
                    "Key": "WindowTargetIds",
                    "Values": [
                        "da89dcc3-7f9c-481d-ba2b-edcb7EXAMPLE"
                    ]
                }
            ],
            "TaskParameters": {},
            "Priority": 1,
            "ServiceRoleArn": "arn:aws:iam::111222333444:role/aws-service-role/ssm.amazonaws.com/AWSServiceRoleForAmazonSSM",
            "MaxConcurrency": "1",
            "MaxErrors": "1",
            "Name": "MyTask"
        }
    ]
}

Example 3: To list all tasks for a maintenance window that have a Priority of 3

The following describe-maintenance-window-tasks example lists all of the tasks for the specified maintenance window that have a Priority of 3.

aws ssm describe-maintenance-window-tasks \
    --window-id "mw-ab12cd34eEXAMPLE" \
    --filters "Key=Priority,Values=3"

Output:

{
    "Tasks": [
        {
            "WindowId": "mw-ab12cd34eEXAMPLE",
            "WindowTaskId": "0d36e6b4-3a4f-411e-adcb-3558eEXAMPLE",
            "TaskArn": "AWS-RunPowerShellScript",
            "Type": "RUN_COMMAND",
            "Targets": [
                {
                    "Key": "WindowTargetIds",
                    "Values": [
                        "da89dcc3-7f9c-481d-ba2b-edcb7EXAMPLE"
                    ]
                }
            ],
            "TaskParameters": {},
            "Priority": 3,
            "ServiceRoleArn": "arn:aws:iam::111222333444:role/aws-service-role/ssm.amazonaws.com/AWSServiceRoleForAmazonSSM",
            "MaxConcurrency": "1",
            "MaxErrors": "1",
            "Name": "MyRunCommandTask"
        },
        {
            "WindowId": "mw-ab12cd34eEXAMPLE",
            "WindowTaskId": "ee45feff-ad65-4a6c-b478-5cab8EXAMPLE",
            "TaskArn": "AWS-RestartEC2Instance",
            "Type": "AUTOMATION",
            "Targets": [
                {
                    "Key": "WindowTargetIds",
                    "Values": [
                        "da89dcc3-7f9c-481d-ba2b-edcb7EXAMPLE"
                    ]
                }
            ],
            "TaskParameters": {},
            "Priority": 3,
            "ServiceRoleArn": "arn:aws:iam::111222333444:role/aws-service-role/ssm.amazonaws.com/AWSServiceRoleForAmazonSSM",
            "MaxConcurrency": "10",
            "MaxErrors": "5",
            "Name": "My-Automation-Task",
            "Description": "A description for my Automation task"
        }
    ]
}

Example 4: To list all tasks for a maintenance window that have a Priority of 1 and use Run Command

This describe-maintenance-window-tasks example lists all of the tasks for the specified maintenance window that have a Priority of 1 and use Run Command.

aws ssm describe-maintenance-window-tasks \
    --window-id "mw-ab12cd34eEXAMPLE" \
    --filters "Key=Priority,Values=1" "Key=TaskType,Values=RUN_COMMAND"

Output:

{
    "Tasks": [
        {
            "WindowId": "mw-ab12cd34eEXAMPLE",
            "WindowTaskId": "0d36e6b4-3a4f-411e-adcb-3558eEXAMPLE",
            "TaskArn": "AWS-RunPowerShellScript",
            "Type": "RUN_COMMAND",
            "Targets": [
                {
                    "Key": "WindowTargetIds",
                    "Values": [
                        "da89dcc3-7f9c-481d-ba2b-edcb7EXAMPLE"
                    ]
                }
            ],
            "TaskParameters": {},
            "Priority": 1,
            "ServiceRoleArn": "arn:aws:iam::111222333444:role/aws-service-role/ssm.amazonaws.com/AWSServiceRoleForAmazonSSM",
            "MaxConcurrency": "1",
            "MaxErrors": "1",
            "Name": "MyRunCommandTask"
        }
    ]
}

For more information, see View information about maintenance windows (Amazon CLI) in the Amazon Systems Manager User Guide.

PowerShell
Tools for PowerShell

Example 1: This example lists all of the tasks for a maintenance window.

Get-SSMMaintenanceWindowTaskList -WindowId "mw-06cf17cbefcb4bf4f"

Output:

LoggingInfo    :
MaxConcurrency : 1
MaxErrors      : 1
Priority       : 10
ServiceRoleArn : arn:aws:iam::123456789012:role/MaintenanceWindowsRole
Targets        : {InstanceIds}
TaskArn        : AWS-RunShellScript
TaskParameters : {[commands, Amazon.SimpleSystemsManagement.Model.MaintenanceWindowTaskParameterValueExpression]}
Type           : RUN_COMMAND
WindowId       : mw-06cf17cbefcb4bf4f
WindowTaskId   : a23e338d-ff30-4398-8aa3-09cd052ebf17

For a complete list of Amazon SDK developer guides and code examples, see Using Systems Manager with an Amazon SDK. This topic also includes information about getting started and details about previous SDK versions.