---
name: "euca-modify-instance-attribute"
section: "1"
platform: "linux"
package: "euca2ools"
version: "3.3.1-2"
release: "Debian 10 (Buster)"
platforms: ["linux"]
url: "https://new.carta.tech/euca-modify-instance-attribute"
---

# euca-modify-instance-attribute(1)

Modify an attribute of an instance

## NAME

euca-modify-instance-attribute - Modify an attribute of an instance

## SYNOPSIS

euca-modify-instance-attribute (**-b** DEVICE=::(true\|false) \|

- **--disable-api-termination** {true,false} \|

  **--ebs-optimized** {true,false} \| **-g** GROUP \| **--instance-initiated-shutdown-behavior** {stop,terminate} \| **-t** INSTANCETYPE \| **--kernel** IMAGE \| **--ramdisk** IMAGE \| **--source-dest-check** {true,false} \| **--sriov** simple \| **--user-data** DATA \| **--user-data-file** FILE) \[--show-empty-fields\] \[-U URL\] \[--region USER@REGION\] \[-I KEY\_ID\] \[-S KEY\] \[--security-token TOKEN\] \[--debug\] \[--debugger\] \[--version\] \[-h\] INSTANCE

## DESCRIPTION

Modify an attribute of an instance

### positional arguments:

- INSTANCE

  ID of the instance to modify (required)

### optional arguments:

- **-b** DEVICE=::(true\|false), **--block-device-mapping** DEVICE=::(true\|false)

  change whether a volume attached to the instance will be deleted upon the instance's termination

- **--disable-api-termination** {true,false}

  change whether or not the instance may be terminated

- **--ebs-optimized** {true,false}

  change whether or not the instance should be optimized for EBS I/O

- **-g** GROUP, **--group-id** GROUP

  \[VPC only\] Change the security group(s) the instance is in

- **--instance-initiated-shutdown-behavior** {stop,terminate}

  whether to stop or terminate the EBS instance when it shuts down (instance-store instances are always terminated)

- **-t** INSTANCETYPE, **--instance-type** INSTANCETYPE

  change the instance's type

- **--kernel** IMAGE

  change the instance's kernel image

- **--ramdisk** IMAGE

  change the instance's ramdisk image

- **--source-dest-check** {true,false}

  change whether source/destination address checking is enabled

- **--sriov** simple

  enable enhanced networking for the instance and its descendants

- **--user-data** DATA

  change the instance's user data (must be base64-encoded)

- **--user-data-file** FILE

  change the instance's user data to the contents of a file

- **--show-empty-fields**

  show empty values as "(nil)"

- **-U** URL, **--url** URL

  compute service endpoint URL

- **--region** USER@REGION

  region and/or user names to search when looking up config file data

**-I** KEY\_ID, **--access-key-id** KEY\_ID

**-S** KEY, **--secret-key** KEY

**--security-token** TOKEN

- **--debug**

  show debugging output

- **--debugger**

  launch interactive debugger on error

- **--version**

  show the program's version and exit

- **-h**, **--help**

  show this help message and exit