[ aws . ec2 ]



Modifies the default instance metadata service (IMDS) settings at the account level in the specified Amazon Web Services Region.


To remove a parameter’s account-level default setting, specify no-preference . If an account-level setting is cleared with no-preference , then the instance launch considers the other instance metadata settings. For more information, see Order of precedence for instance metadata options in the Amazon EC2 User Guide .

See also: AWS API Documentation


[--http-tokens <value>]
[--http-put-response-hop-limit <value>]
[--http-endpoint <value>]
[--instance-metadata-tags <value>]
[--dry-run | --no-dry-run]
[--cli-input-json | --cli-input-yaml]
[--generate-cli-skeleton <value>]
[--endpoint-url <value>]
[--output <value>]
[--query <value>]
[--profile <value>]
[--region <value>]
[--version <value>]
[--color <value>]
[--ca-bundle <value>]
[--cli-read-timeout <value>]
[--cli-connect-timeout <value>]
[--cli-binary-format <value>]


--http-tokens (string)

Indicates whether IMDSv2 is required.

  • optional – IMDSv2 is optional, which means that you can use either IMDSv2 or IMDSv1.
  • required – IMDSv2 is required, which means that IMDSv1 is disabled, and you must use IMDSv2.

Possible values:

  • optional
  • required
  • no-preference

--http-put-response-hop-limit (integer)

The maximum number of hops that the metadata token can travel. To indicate no preference, specify -1 .

Possible values: Integers from 1 to 64 , and -1 to indicate no preference

--http-endpoint (string)

Enables or disables the IMDS endpoint on an instance. When disabled, the instance metadata can’t be accessed.

Possible values:

  • disabled
  • enabled
  • no-preference

--instance-metadata-tags (string)

Enables or disables access to an instance’s tags from the instance metadata. For more information, see Work with instance tags using the instance metadata in the Amazon EC2 User Guide .

Possible values:

  • disabled
  • enabled
  • no-preference

--dry-run | --no-dry-run (boolean)

Checks whether you have the required permissions for the action, without actually making the request, and provides an error response. If you have the required permissions, the error response is DryRunOperation . Otherwise, it is UnauthorizedOperation .

--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.

--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.


Return -> (boolean)

If the request succeeds, the response returns true . If the request fails, no response is returned, and instead an error message is returned.