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Enabling EKS Support

Support for EKS is enabled by default when you use the AWS infrastructure provider. For example:

clusterctl init --infrastructure aws

Enabling optional EKS features

There are additional EKS experimental features that are disabled by default. The sections below cover how to enable these features.

Machine Pools

To enable support for machine pools the MachinePool feature flag must be set to to true. This can be done using the EXP_MACHINE_POOL environment variable:

export EXP_MACHINE_POOL=true
clusterctl init --infrastructure aws

See the machine pool documentation for further information.

NOTE: you will need to enable the creation of the default IAM role. The easiest way is using clusterawsadm, for instructions see the prerequisites.

IAM Roles Per Cluster

By default EKS clusters will use the same IAM roles (i.e. control plane, node group roles). There is a feature that allows each cluster to have its own IAM roles. This is done by enabling the EKSEnableIAM feature flag. This can be done before running clusterctl init by using the the CAPA_EKS_IAM environment variable:

export CAPA_EKS_IAM=true
clusterctl init --infrastructure aws

NOTE: you will need the correct prerequisities for this. The easiest way is using clusterawsadm and setting iamRoleCreation to true, for instructions see the prerequisites.

Additional Control Plane Roles

You can add additional roles to the control plane role that is created for an EKS cluster. To use this you must enable the EKSAllowAddRoles feature flag. This can be done before running clusterctl init by using the CAPA_EKS_ADD_ROLES environment variable:

export CAPA_EKS_IAM=true
export CAPA_EKS_ADD_ROLES=true
clusterctl init --infrastructure aws

NOTE: to use this feature you must also enable the CAPA_EKS_IAM feature.

EKS Fargate Profiles

You can use Fargate Profiles with EKS. To use this you must enable the EKSFargate feature flag. This can be done before running clusterctl init by using the EXP_EKS_FARGATE environmnet variable:

export EXP_EKS_FARGATE=true
clusterctl init --infrastructure aws

NOTE: you will need to enable the creation of the default Fargate IAM role. The easiest way is using clusterawsadm and using the fargate configuration option, for instructions see the prerequisites.