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IAM policies

Supported IAM add-on policies

Example of all supported add-on policies:

nodeGroups:
  - name: ng-1
    instanceType: m5.xlarge
    desiredCapacity: 1
    iam:
      withAddonPolicies:
        imageBuilder: true
        autoScaler: true
        externalDNS: true
        certManager: true
        appMesh: true
        appMeshPreview: true
        ebs: true
        fsx: true
        efs: true
        albIngress: true
        xRay: true
        cloudWatch: true

Image Builder Policy

The imageBuilder policy allows for full ECR (Elastic Container Registry) access. This is useful for building, for example, a CI server that needs to push images to ECR.

EBS Policy

The ebs policy enables the new EBS CSI (Elastic Block Store Container Storage Interface) driver.

Cert Manager Policy

The certManager policy enables the ability to add records to Route 53 in order to solve the DNS01 challenge. More information can be found here.

Adding a custom instance role

This example creates a nodegroup that reuses an existing IAM Instance Role from another cluster:

apiVersion: eksctl.io/v1alpha4
kind: ClusterConfig
metadata:
  name: test-cluster-c-1
  region: eu-north-1

nodeGroups:
  - name: ng2-private
    instanceType: m5.large
    desiredCapacity: 1
    iam:
      instanceProfileARN: "arn:aws:iam::123:instance-profile/eksctl-test-cluster-a-3-nodegroup-ng2-private-NodeInstanceProfile-Y4YKHLNINMXC"
      instanceRoleARN: "arn:aws:iam::123:role/eksctl-test-cluster-a-3-nodegroup-NodeInstanceRole-DNGMQTQHQHBJ"

Attaching policies by ARN

nodeGroups:
  - name: my-special-nodegroup
    iam:
      attachPolicyARNs:
        - arn:aws:iam::aws:policy/AmazonEKSWorkerNodePolicy
        - arn:aws:iam::aws:policy/AmazonEKS_CNI_Policy
        - arn:aws:iam::aws:policy/AmazonEC2ContainerRegistryReadOnly
        - arn:aws:iam::aws:policy/ElasticLoadBalancingFullAccess
        - arn:aws:iam::1111111111:policy/kube2iam
      withAddonPolicies:
        autoScaler: true
        imageBuilder: true

Warning

If a nodegroup includes the attachPolicyARNs it must also include the default node policies, like AmazonEKSWorkerNodePolicy, AmazonEKS_CNI_Policy and AmazonEC2ContainerRegistryReadOnly in this example.