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[ aws . ec2 ]

modify-instance-attribute

Description

Modifies the specified attribute of the specified instance. You can specify only one attribute at a time.

To modify some attributes, the instance must be stopped. For more information, see Modifying Attributes of a Stopped Instance in the Amazon Elastic Compute Cloud User Guide .

See also: AWS API Documentation

Synopsis

  modify-instance-attribute
[--source-dest-check | --no-source-dest-check]
[--attribute <value>]
[--block-device-mappings <value>]
[--disable-api-termination | --no-disable-api-termination]
[--dry-run | --no-dry-run]
[--ebs-optimized | --no-ebs-optimized]
[--ena-support | --no-ena-support]
[--groups <value>]
--instance-id <value>
[--instance-initiated-shutdown-behavior <value>]
[--instance-type <value>]
[--kernel <value>]
[--ramdisk <value>]
[--sriov-net-support <value>]
[--user-data <value>]
[--value <value>]
[--cli-input-json <value>]
[--generate-cli-skeleton <value>]

Options

--source-dest-check | --no-source-dest-check (structure)

Specifies whether source/destination checking is enabled. A value of true means that checking is enabled, and false means that checking is disabled. This value must be false for a NAT instance to perform NAT.

--attribute (string)

The name of the attribute.

Possible values:

  • instanceType
  • kernel
  • ramdisk
  • userData
  • disableApiTermination
  • instanceInitiatedShutdownBehavior
  • rootDeviceName
  • blockDeviceMapping
  • productCodes
  • sourceDestCheck
  • groupSet
  • ebsOptimized
  • sriovNetSupport
  • enaSupport

--block-device-mappings (list)

Modifies the DeleteOnTermination attribute for volumes that are currently attached. The volume must be owned by the caller. If no value is specified for DeleteOnTermination , the default is true and the volume is deleted when the instance is terminated.

To add instance store volumes to an Amazon EBS-backed instance, you must add them when you launch the instance. For more information, see Updating the Block Device Mapping when Launching an Instance in the Amazon Elastic Compute Cloud User Guide .

Shorthand Syntax:

DeviceName=string,Ebs={DeleteOnTermination=boolean,VolumeId=string},NoDevice=string,VirtualName=string ...

JSON Syntax:

[
  {
    "DeviceName": "string",
    "Ebs": {
      "DeleteOnTermination": true|false,
      "VolumeId": "string"
    },
    "NoDevice": "string",
    "VirtualName": "string"
  }
  ...
]

--disable-api-termination | --no-disable-api-termination (structure)

If the value is true , you can't terminate the instance using the Amazon EC2 console, CLI, or API; otherwise, you can. You cannot use this parameter for Spot Instances.

--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 .

--ebs-optimized | --no-ebs-optimized (structure)

Specifies whether the instance is optimized for Amazon EBS I/O. This optimization provides dedicated throughput to Amazon EBS and an optimized configuration stack to provide optimal EBS I/O performance. This optimization isn't available with all instance types. Additional usage charges apply when using an EBS Optimized instance.

--ena-support | --no-ena-support (structure)

Set to true to enable enhanced networking with ENA for the instance.

This option is supported only for HVM instances. Specifying this option with a PV instance can make it unreachable.

--groups (list)

[EC2-VPC] Changes the security groups of the instance. You must specify at least one security group, even if it's just the default security group for the VPC. You must specify the security group ID, not the security group name.

Syntax:

"string" "string" ...

--instance-id (string)

The ID of the instance.

--instance-initiated-shutdown-behavior (structure)

Specifies whether an instance stops or terminates when you initiate shutdown from the instance (using the operating system command for system shutdown).

--instance-type (structure)

Changes the instance type to the specified value. For more information, see Instance Types . If the instance type is not valid, the error returned is InvalidInstanceAttributeValue .

--kernel (structure)

Changes the instance's kernel to the specified value. We recommend that you use PV-GRUB instead of kernels and RAM disks. For more information, see PV-GRUB .

--ramdisk (structure)

Changes the instance's RAM disk to the specified value. We recommend that you use PV-GRUB instead of kernels and RAM disks. For more information, see PV-GRUB .

--sriov-net-support (structure)

Set to simple to enable enhanced networking with the Intel 82599 Virtual Function interface for the instance.

There is no way to disable enhanced networking with the Intel 82599 Virtual Function interface at this time.

This option is supported only for HVM instances. Specifying this option with a PV instance can make it unreachable.

--user-data (structure)

Changes the instance's user data to the specified value. If you are using an AWS SDK or command line tool, base64-encoding is performed for you, and you can load the text from a file. Otherwise, you must provide base64-encoded text.

Shorthand Syntax:

Value=blob

JSON Syntax:

{
  "Value": blob
}

--value (string)

A new value for the attribute. Use only with the kernel , ramdisk , userData , disableApiTermination , or instanceInitiatedShutdownBehavior attribute.

--cli-input-json (string) Performs service operation based on the JSON string provided. The JSON string follows the format provided by --generate-cli-skeleton. If other arguments are provided on the command line, the CLI values will override the JSON-provided values.

--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. If provided with the value output, it validates the command inputs and returns a sample output JSON for that command.

Examples

To modify the instance type

This example modifies the instance type of the specified instance. The instance must be in the stopped state. If the command succeeds, no output is returned.

Command:

aws ec2 modify-instance-attribute --instance-id i-1234567890abcdef0 --instance-type "{\"Value\": \"m1.small\"}"

To enable enhanced networking on an instance

This example enables enhanced networking for the specified instance. The instance must be in the stopped state. If the command succeeds, no output is returned.

Command:

aws ec2 modify-instance-attribute --instance-id i-1234567890abcdef0 --sriov-net-support simple

To modify the sourceDestCheck attribute

This example sets the sourceDestCheck attribute of the specified instance to true. The instance must be in a VPC. If the command succeeds, no output is returned.

Command:

aws ec2 modify-instance-attribute --instance-id i-1234567890abcdef0 --source-dest-check "{\"Value\": true}"

To modify the deleteOnTermination attribute of the root volume

This example sets the deleteOnTermination attribute for the root volume of the specified Amazon EBS-backed instance to false. By default, this attribute is true for the root volume. If the command succeeds, no output is returned.

Command:

aws ec2 modify-instance-attribute --instance-id i-1234567890abcdef0 --block-device-mappings "[{\"DeviceName\": \"/dev/sda1\",\"Ebs\":{\"DeleteOnTermination\":false}}]"

Output

None