AWS::Batch::ComputeEnvironment Ec2ConfigurationObject - AWS CloudFormation
SyntaxProperties

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AWS::Batch::ComputeEnvironment Ec2ConfigurationObject

Provides information used to select Amazon Machine Images (AMIs) for instances in the compute environment. If Ec2Configuration isn't specified, the default is ECS_AL2023 (Amazon ECS-optimized Amazon Linux 2023) for EC2 (ECS) compute environments and EKS_AL2023 (Amazon EKS-optimized Amazon Linux 2023 AMI) for EKS compute environments.

Note

This object isn't applicable to jobs that are running on Fargate resources.

Syntax

To declare this entity in your CloudFormation template, use the following syntax:

JSON

{
  "ImageIdOverride" : String,
  "ImageKubernetesVersion" : String,
  "ImageType" : String
}

YAML

  ImageIdOverride: String
  ImageKubernetesVersion: String
  ImageType: String

Properties

ImageIdOverride

The AMI ID used for instances launched in the compute environment that match the image type. This setting overrides the imageId set in the computeResource object.

Note

The AMI that you choose for a compute environment must match the architecture of the instance types that you intend to use for that compute environment. For example, if your compute environment uses A1 instance types, the compute resource AMI that you choose must support ARM instances. Amazon ECS vends both x86 and ARM versions of the Amazon ECS-optimized Amazon Linux 2023 AMI. For more information, see Amazon ECS-optimized Amazon Linux 2023 AMI in the Amazon Elastic Container Service Developer Guide.

Required: No

Type: String

Minimum: 1

Maximum: 256

Update requires: Some interruptions

ImageKubernetesVersion

The Kubernetes version for the compute environment. If you don't specify a value, the latest version that AWS Batch supports is used.

Required: No

Type: String

Minimum: 1

Maximum: 256

Update requires: Some interruptions

ImageType

The image type to match with the instance type to select an AMI. The supported values are different for ECS and EKS resources.

ECS

If the imageIdOverride parameter isn't specified, then a recent Amazon ECS-optimized Amazon Linux 2023 AMI (ECS_AL2023) is used. If a new image type is specified in an update, but neither an imageId nor a imageIdOverride parameter is specified, then the latest Amazon ECS optimized AMI for that image type that's supported by AWS Batch is used.

Important

AWS is ending support for Amazon ECS Amazon Linux 2-optimized and accelerated AMIs on June 30, 2026. On January 12, 2026, AWS Batch changed the default AMI for new Amazon ECS compute environments from Amazon Linux 2 to Amazon Linux 2023. Effective June 30, 2026, AWS Batch will block creation of new Amazon ECS compute environments using Batch-provided Amazon Linux 2 AMIs. We strongly recommend migrating your existing AWS Batch Amazon ECS compute environments to Amazon Linux 2023 prior to June 30, 2026. For more information on upgrading from AL2 to AL2023, see How to migrate from ECS AL2 to ECS AL2023 in the AWS Batch User Guide.

ECS_AL2

Amazon Linux 2: Used for non-GPU instance families.

ECS_AL2_NVIDIA

Amazon Linux 2 (GPU): Used for GPU instance families (for example P4 and G4) and non AWS Graviton-based instance types.

ECS_AL2023

Amazon Linux 2023: Default for all non-GPU instance families.

Note

Amazon Linux 2023 does not support A1 instances.

ECS_AL2023_NVIDIA

Amazon Linux 2023 (GPU): Default for all GPU instance families and can be used for all non AWS Graviton-based instance types.

Note

ECS_AL2023_NVIDIA doesn't support p3 and g3 instance types.

EKS

If the imageIdOverride parameter isn't specified, then a recent Amazon EKS-optimized Amazon Linux 2023 AMI (EKS_AL2023) is used. If a new image type is specified in an update, but neither an imageId nor a imageIdOverride parameter is specified, then the latest Amazon EKS optimized AMI for that image type that AWS Batch supports is used.

Important

Amazon Linux 2023 AMIs are the default on AWS Batch for Amazon EKS.

AWS ended support for Amazon EKS AL2-optimized and AL2-accelerated AMIs on November 26, 2025. AWS Batch Amazon EKS compute environments using Amazon Linux 2 will no longer receive software updates, security patches, or bug fixes from AWS. We recommend migrating to Amazon Linux 2023. For more information on upgrading from AL2 to AL2023, see How to upgrade from EKS AL2 to EKS AL2023 in the AWS Batch User Guide.

EKS_AL2

Amazon Linux 2: Used for non-GPU instance families.

EKS_AL2_NVIDIA

Amazon Linux 2 (accelerated): Used for GPU instance families (for example, P4 and G4) and can be used for all non AWS Graviton-based instance types.

EKS_AL2023

Amazon Linux 2023: Default for non-GPU instance families.

Note

Amazon Linux 2023 does not support A1 instances.

EKS_AL2023_NVIDIA

Amazon Linux 2023 (accelerated): Default for GPU instance families and can be used for all non AWS Graviton-based instance types.

Required: Yes

Type: String

Minimum: 1

Maximum: 256

Update requires: Some interruptions