AWS CLI Command Reference

[ aws . ssm ]

get-maintenance-window-task

Description

Retrieves the details of a maintenance window task.

Note

For maintenance window tasks without a specified target, you can’t supply values for --max-errors and --max-concurrency . Instead, the system inserts a placeholder value of 1 , which may be reported in the response to this command. These values don’t affect the running of your task and can be ignored.

To retrieve a list of tasks in a maintenance window, instead use the DescribeMaintenanceWindowTasks command.

See also: AWS API Documentation

Synopsis

  get-maintenance-window-task
--window-id <value>
--window-task-id <value>
[--cli-input-json | --cli-input-yaml]
[--generate-cli-skeleton <value>]
[--debug]
[--endpoint-url <value>]
[--no-verify-ssl]
[--no-paginate]
[--output <value>]
[--query <value>]
[--profile <value>]
[--region <value>]
[--version <value>]
[--color <value>]
[--no-sign-request]
[--ca-bundle <value>]
[--cli-read-timeout <value>]
[--cli-connect-timeout <value>]
[--cli-binary-format <value>]
[--no-cli-pager]
[--cli-auto-prompt]
[--no-cli-auto-prompt]

Options

--window-id (string)

The maintenance window ID that includes the task to retrieve.

--window-task-id (string)

The maintenance window task ID to retrieve.

--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.

--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. The generated JSON skeleton is not stable between versions of the AWS CLI and there are no backwards compatibility guarantees in the JSON skeleton generated.

Global Options

--debug (boolean)

Turn on debug logging.

--endpoint-url (string)

Override command’s default URL with the given URL.

--no-verify-ssl (boolean)

By default, the AWS CLI uses SSL when communicating with AWS services. For each SSL connection, the AWS CLI will verify SSL certificates. This option overrides the default behavior of verifying SSL certificates.

--no-paginate (boolean)

Disable automatic pagination. If automatic pagination is disabled, the AWS CLI will only make one call, for the first page of results.

--output (string)

The formatting style for command output.

  • json
  • text
  • table
  • yaml
  • yaml-stream

--query (string)

A JMESPath query to use in filtering the response data.

--profile (string)

Use a specific profile from your credential file.

--region (string)

The region to use. Overrides config/env settings.

--version (string)

Display the version of this tool.

--color (string)

Turn on/off color output.

  • on
  • off
  • auto

--no-sign-request (boolean)

Do not sign requests. Credentials will not be loaded if this argument is provided.

--ca-bundle (string)

The CA certificate bundle to use when verifying SSL certificates. Overrides config/env settings.

--cli-read-timeout (int)

The maximum socket read time in seconds. If the value is set to 0, the socket read will be blocking and not timeout. The default value is 60 seconds.

--cli-connect-timeout (int)

The maximum socket connect time in seconds. If the value is set to 0, the socket connect will be blocking and not timeout. The default value is 60 seconds.

--cli-binary-format (string)

The formatting style to be used for binary blobs. The default format is base64. The base64 format expects binary blobs to be provided as a base64 encoded string. The raw-in-base64-out format preserves compatibility with AWS CLI V1 behavior and binary values must be passed literally. When providing contents from a file that map to a binary blob fileb:// will always be treated as binary and use the file contents directly regardless of the cli-binary-format setting. When using file:// the file contents will need to properly formatted for the configured cli-binary-format.

  • base64
  • raw-in-base64-out

--no-cli-pager (boolean)

Disable cli pager for output.

--cli-auto-prompt (boolean)

Automatically prompt for CLI input parameters.

--no-cli-auto-prompt (boolean)

Disable automatically prompt for CLI input parameters.

Examples

Note

To use the following examples, you must have the AWS CLI installed and configured. See the Getting started guide in the AWS CLI User Guide for more information.

Unless otherwise stated, all examples have unix-like quotation rules. These examples will need to be adapted to your terminal’s quoting rules. See Using quotation marks with strings in the AWS CLI User Guide .

To get information about a maintenance window task

The following get-maintenance-window-task example retreives details about the specified maintenance window task.

aws ssm get-maintenance-window-task \
    --window-id mw-0c5ed765acEXAMPLE \
    --window-task-id 0e842a8d-2d44-4886-bb62-af8dcEXAMPLE

Output:

{
    "ServiceRoleArn": "arn:aws:iam::111222333444:role/aws-service-role/ssm.amazonaws.com/AWSServiceRoleForAmazonSSM",
    "MaxErrors": "1",
    "TaskArn": "AWS-RunPowerShellScript",
    "MaxConcurrency": "1",
    "WindowTaskId": "0e842a8d-2d44-4886-bb62-af8dcEXAMPLE",
    "TaskParameters": {},
    "Priority": 1,
    "TaskInvocationParameters": {
        "RunCommand": {
            "Comment": "",
            "TimeoutSeconds": 600,
            "Parameters": {
                "commands": [
                    "echo Hello"
                ],
                "executionTimeout": [
                    "3600"
                ],
                "workingDirectory": [
                    ""
                ]
            }
        }
    },
    "WindowId": "mw-0c5ed765acEXAMPLE",
    "TaskType": "RUN_COMMAND",
    "Targets": [
        {
            "Values": [
                "84c818da-b619-4d3d-9651-946f3EXAMPLE"
            ],
            "Key": "WindowTargetIds"
        }
    ],
    "Name": "ExampleTask"
}

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

Output

WindowId -> (string)

The retrieved maintenance window ID.

WindowTaskId -> (string)

The retrieved maintenance window task ID.

Targets -> (list)

The targets where the task should run.

(structure)

An array of search criteria that targets managed nodes using a key-value pair that you specify.

Note

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, Lambda, and Step Functions). For more information about running tasks that don’t specify targets, see Registering maintenance window tasks without targets in the Amazon Web Services Systems Manager User Guide .

Supported formats include the following.

For all Systems Manager capabilities:
  • Key=tag-key,Values=tag-value-1,tag-value-2
For Automation and Change Manager:
  • Key=tag:tag-key,Values=tag-value
  • Key=ResourceGroup,Values=resource-group-name
  • Key=ParameterValues,Values=value-1,value-2,value-3
  • To target all instances in the Amazon Web Services Region:
    • Key=AWS::EC2::Instance,Values=*
    • Key=InstanceIds,Values=*
For Run Command and Maintenance Windows:
  • Key=InstanceIds,Values=instance-id-1,instance-id-2,instance-id-3
  • Key=tag:tag-key,Values=tag-value-1,tag-value-2
  • Key=resource-groups:Name,Values=resource-group-name
  • Additionally, Maintenance Windows support targeting resource types:
    • Key=resource-groups:ResourceTypeFilters,Values=resource-type-1,resource-type-2
For State Manager:
  • Key=InstanceIds,Values=instance-id-1,instance-id-2,instance-id-3
  • Key=tag:tag-key,Values=tag-value-1,tag-value-2
  • To target all instances in the Amazon Web Services Region:
    • Key=InstanceIds,Values=*

For more information about how to send commands that target managed nodes using Key,Value parameters, see Targeting multiple managed nodes in the Amazon Web Services Systems Manager User Guide .

Key -> (string)

User-defined criteria for sending commands that target managed nodes 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 .

Depending on the type of target, the maximum number of values for a key might be lower than the global maximum of 50.

(string)

TaskArn -> (string)

The resource that the task used during execution. For RUN_COMMAND and AUTOMATION task types, the value of TaskArn is the SSM document name/ARN. For LAMBDA tasks, the value is the function name/ARN. For STEP_FUNCTIONS tasks, the value is the state machine ARN.

ServiceRoleArn -> (string)

The Amazon Resource Name (ARN) of the IAM service role for Amazon Web Services Systems Manager to assume when running a maintenance window task. If you do not specify a service role ARN, Systems Manager uses a service-linked role in your account. If no appropriate service-linked role for Systems Manager exists in your account, it is created when you run RegisterTaskWithMaintenanceWindow .

However, for an improved security posture, we strongly recommend creating a custom policy and custom service role for running your maintenance window tasks. The policy can be crafted to provide only the permissions needed for your particular maintenance window tasks. For more information, see Setting up Maintenance Windows in the in the Amazon Web Services Systems Manager User Guide .

TaskType -> (string)

The type of task to run.

TaskParameters -> (map)

The parameters to pass to the task when it runs.

Note

TaskParameters has been deprecated. To specify parameters to pass to a task when it runs, instead use the Parameters option in the TaskInvocationParameters structure. For information about how Systems Manager handles these options for the supported maintenance window task types, see MaintenanceWindowTaskInvocationParameters .

key -> (string)

value -> (structure)

Defines the values for a task parameter.

Values -> (list)

This field contains an array of 0 or more strings, each 1 to 255 characters in length.

(string)

TaskInvocationParameters -> (structure)

The parameters to pass to the task when it runs.

RunCommand -> (structure)

The parameters for a RUN_COMMAND task type.

Comment -> (string)

Information about the commands to run.

CloudWatchOutputConfig -> (structure)

Configuration options for sending command output to Amazon CloudWatch Logs.

CloudWatchLogGroupName -> (string)

The name of the CloudWatch Logs log group where you want to send command output. If you don’t specify a group name, Amazon Web Services Systems Manager automatically creates a log group for you. The log group uses the following naming format:

``aws/ssm/SystemsManagerDocumentName ``

CloudWatchOutputEnabled -> (boolean)

Enables Systems Manager to send command output to CloudWatch Logs.

DocumentHash -> (string)

The SHA-256 or SHA-1 hash created by the system when the document was created. SHA-1 hashes have been deprecated.

DocumentHashType -> (string)

SHA-256 or SHA-1. SHA-1 hashes have been deprecated.

DocumentVersion -> (string)

The Amazon Web Services Systems Manager document (SSM document) version to use in the request. You can specify $DEFAULT , $LATEST , or a specific version number. If you run commands by using the Amazon Web Services CLI, then you must escape the first two options by using a backslash. If you specify a version number, then you don’t need to use the backslash. For example:

--document-version "\$DEFAULT"

--document-version "\$LATEST"

--document-version "3"

NotificationConfig -> (structure)

Configurations for sending notifications about command status changes on a per-managed node basis.

NotificationArn -> (string)

An Amazon Resource Name (ARN) for an Amazon Simple Notification Service (Amazon SNS) topic. Run Command pushes notifications about command status changes to this topic.

NotificationEvents -> (list)

The different events for which you can receive notifications. To learn more about these events, see Monitoring Systems Manager status changes using Amazon SNS notifications in the Amazon Web Services Systems Manager User Guide .

(string)

NotificationType -> (string)

The type of notification.

  • Command : Receive notification when the status of a command changes.
  • Invocation : For commands sent to multiple managed nodes, receive notification on a per-node basis when the status of a command changes.

OutputS3BucketName -> (string)

The name of the Amazon Simple Storage Service (Amazon S3) bucket.

OutputS3KeyPrefix -> (string)

The S3 bucket subfolder.

Parameters -> (map)

The parameters for the RUN_COMMAND task execution.

key -> (string)

value -> (list)

(string)

ServiceRoleArn -> (string)

The Amazon Resource Name (ARN) of the IAM service role for Amazon Web Services Systems Manager to assume when running a maintenance window task. If you do not specify a service role ARN, Systems Manager uses a service-linked role in your account. If no appropriate service-linked role for Systems Manager exists in your account, it is created when you run RegisterTaskWithMaintenanceWindow .

However, for an improved security posture, we strongly recommend creating a custom policy and custom service role for running your maintenance window tasks. The policy can be crafted to provide only the permissions needed for your particular maintenance window tasks. For more information, see Setting up Maintenance Windows in the in the Amazon Web Services Systems Manager User Guide .

TimeoutSeconds -> (integer)

If this time is reached and the command hasn’t already started running, it doesn’t run.

Automation -> (structure)

The parameters for an AUTOMATION task type.

DocumentVersion -> (string)

The version of an Automation runbook to use during task execution.

Parameters -> (map)

The parameters for the AUTOMATION task.

For information about specifying and updating task parameters, see RegisterTaskWithMaintenanceWindow and UpdateMaintenanceWindowTask .

Note

LoggingInfo has been deprecated. To specify an Amazon Simple Storage Service (Amazon S3) bucket to contain logs, instead use the OutputS3BucketName and OutputS3KeyPrefix options in the TaskInvocationParameters structure. For information about how Amazon Web Services Systems Manager handles these options for the supported maintenance window task types, see MaintenanceWindowTaskInvocationParameters .

TaskParameters has been deprecated. To specify parameters to pass to a task when it runs, instead use the Parameters option in the TaskInvocationParameters structure. For information about how Systems Manager handles these options for the supported maintenance window task types, see MaintenanceWindowTaskInvocationParameters .

For AUTOMATION task types, Amazon Web Services Systems Manager ignores any values specified for these parameters.

key -> (string)

value -> (list)

(string)

StepFunctions -> (structure)

The parameters for a STEP_FUNCTIONS task type.

Input -> (string)

The inputs for the STEP_FUNCTIONS task.

Name -> (string)

The name of the STEP_FUNCTIONS task.

Lambda -> (structure)

The parameters for a LAMBDA task type.

ClientContext -> (string)

Pass client-specific information to the Lambda function that you are invoking. You can then process the client information in your Lambda function as you choose through the context variable.

Qualifier -> (string)

(Optional) Specify an Lambda function version or alias name. If you specify a function version, the operation uses the qualified function Amazon Resource Name (ARN) to invoke a specific Lambda function. If you specify an alias name, the operation uses the alias ARN to invoke the Lambda function version to which the alias points.

Payload -> (blob)

JSON to provide to your Lambda function as input.

Priority -> (integer)

The priority of the task when it runs. The lower the number, the higher the priority. Tasks that have the same priority are scheduled in parallel.

MaxConcurrency -> (string)

The maximum number of targets allowed to run this task in parallel.

Note

For maintenance window tasks without a target specified, you can’t supply a value for this option. Instead, the system inserts a placeholder value of 1 , which may be reported in the response to this command. This value doesn’t affect the running of your task and can be ignored.

MaxErrors -> (string)

The maximum number of errors allowed before the task stops being scheduled.

Note

For maintenance window tasks without a target specified, you can’t supply a value for this option. Instead, the system inserts a placeholder value of 1 , which may be reported in the response to this command. This value doesn’t affect the running of your task and can be ignored.

LoggingInfo -> (structure)

The location in Amazon Simple Storage Service (Amazon S3) where the task results are logged.

Note

LoggingInfo has been deprecated. To specify an Amazon Simple Storage Service (Amazon S3) bucket to contain logs, instead use the OutputS3BucketName and OutputS3KeyPrefix options in the TaskInvocationParameters structure. For information about how Amazon Web Services Systems Manager handles these options for the supported maintenance window task types, see MaintenanceWindowTaskInvocationParameters .

S3BucketName -> (string)

The name of an S3 bucket where execution logs are stored.

S3KeyPrefix -> (string)

(Optional) The S3 bucket subfolder.

S3Region -> (string)

The Amazon Web Services Region where the S3 bucket is located.

Name -> (string)

The retrieved task name.

Description -> (string)

The retrieved task description.

CutoffBehavior -> (string)

The action to take on tasks when the maintenance window cutoff time is reached. CONTINUE_TASK means that tasks continue to run. For Automation, Lambda, Step Functions tasks, CANCEL_TASK means that currently running task invocations continue, but no new task invocations are started. For Run Command tasks, CANCEL_TASK means the system attempts to stop the task by sending a CancelCommand operation.

AlarmConfiguration -> (structure)

The details for the CloudWatch alarm you applied to your maintenance window task.

IgnorePollAlarmFailure -> (boolean)

When this value is true , your automation or command continues to run in cases where we can’t retrieve alarm status information from CloudWatch. In cases where we successfully retrieve an alarm status of OK or INSUFFICIENT_DATA, the automation or command continues to run, regardless of this value. Default is false .

Alarms -> (list)

The name of the CloudWatch alarm specified in the configuration.

(structure)

A CloudWatch alarm you apply to an automation or command.

Name -> (string)

The name of your CloudWatch alarm.
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