AmazonEKS_CNI_Policy

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Summary

This policy provides the Amazon VPC CNI Plugin (amazon-vpc-cni-k8s) the permissions it requires to modify the IP address configuration on your EKS worker nodes. This permission set allows the CNI to list, describe, and modify Elastic Network Interfaces on your behalf. More information on the AWS VPC CNI Plugin is available here: https://github.com/aws/amazon-vpc-cni-k8s

Permissions imported from the AWS Managed Policy Reference Guide; other sections pending editorial review.

Identity

ARN: arn:aws:iam::aws:policy/AmazonEKS_CNI_Policy
Default version: v6
Created: 2018-05-27
Last edited: 2026-03-04
Services: ec2

Control-plane actions (14)

By access level: 6 List, 1 Tagging, 7 Write.

Control-plane actions by service
Service	Granted	Access levels and limits	Granted by
EC2	14 of 834	6 List, 1 Tagging, 7 Write; 1 restricted, 0 conditional	ec2:AssignPrivateIpAddresses, ec2:AttachNetworkInterface, ec2:CreateNetworkInterface, ec2:CreateTags, ec2:DeleteNetworkInterface, ec2:DescribeInstanceTypes, ec2:DescribeInstances, ec2:DescribeNetworkInterfaces, ec2:DescribeSecurityGroups, ec2:DescribeSubnets, ec2:DescribeTags, ec2:DetachNetworkInterface and 2 more

EC2: 14 actions

ec2:AssignPrivateIpAddresses (Write)
ec2:AttachNetworkInterface (Write)
ec2:CreateNetworkInterface (Write)
ec2:CreateTags (Tagging)
ec2:DeleteNetworkInterface (Write)
ec2:DescribeInstanceTypes (List)
ec2:DescribeInstances (List)
ec2:DescribeNetworkInterfaces (List)
ec2:DescribeSecurityGroups (List)
ec2:DescribeSubnets (List)
ec2:DescribeTags (List)
ec2:DetachNetworkInterface (Write)
ec2:ModifyNetworkInterfaceAttribute (Write)
ec2:UnassignPrivateIpAddresses (Write)

Data-plane actions (0)

By access level: none.

This policy grants no actions in this plane.

Excluded and conditional actions

No patterns are excluded by NotAction or Deny statements.

Resource scope and attachment

Resource scope across granted actions: mixed.

Can be attached: Yes, to users, groups and roles.

Why this tier

Grants 8 write, tagging or permissions-management actions, short of full control of any service.

Guidance

Pending editorial review. The permission data on this page comes straight from AWS; this section will be filled in once a reviewed guide exists.

Same service

Same domain

Frequently asked questions

Pending editorial review. The permission data on this page comes straight from AWS; this section will be filled in once a reviewed guide exists.

Policy JSON

Download policy.json

{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Sid": "AmazonEKSCNIPolicy",
      "Effect": "Allow",
      "Action": [
        "ec2:AssignPrivateIpAddresses",
        "ec2:AttachNetworkInterface",
        "ec2:CreateNetworkInterface",
        "ec2:DeleteNetworkInterface",
        "ec2:DescribeInstances",
        "ec2:DescribeTags",
        "ec2:DescribeNetworkInterfaces",
        "ec2:DescribeInstanceTypes",
        "ec2:DescribeSubnets",
        "ec2:DescribeSecurityGroups",
        "ec2:DetachNetworkInterface",
        "ec2:ModifyNetworkInterfaceAttribute",
        "ec2:UnassignPrivateIpAddresses"
      ],
      "Resource": "*"
    },
    {
      "Sid": "AmazonEKSCNIPolicyENITag",
      "Effect": "Allow",
      "Action": [
        "ec2:CreateTags"
      ],
      "Resource": [
        "arn:aws:ec2:*:*:network-interface/*"
      ]
    }
  ]
}

Version history

Current version v6, edited by AWS on 2026-03-04. Version history is recorded from 2026-11-11. Earlier versions are in the IAM console under Policy versions.

Attach snippets

AWS CLI

aws iam attach-role-policy --role-name ROLE_NAME --policy-arn arn:aws:iam::aws:policy/AmazonEKS_CNI_Policy
aws iam attach-user-policy --user-name USER_NAME --policy-arn arn:aws:iam::aws:policy/AmazonEKS_CNI_Policy
aws iam attach-group-policy --group-name GROUP_NAME --policy-arn arn:aws:iam::aws:policy/AmazonEKS_CNI_Policy

CloudFormation

Resources:
  ExampleRole:
    Type: AWS::IAM::Role
    Properties:
      AssumeRolePolicyDocument: {}  # replace with your trust policy
      ManagedPolicyArns:
        - arn:aws:iam::aws:policy/AmazonEKS_CNI_Policy

Terraform

resource "aws_iam_role_policy_attachment" "amazoneks_cni_policy" {
  role       = aws_iam_role.example.name
  policy_arn = "arn:aws:iam::aws:policy/AmazonEKS_CNI_Policy"
}

CDK (TypeScript)

role.addManagedPolicy(
  iam.ManagedPolicy.fromAwsManagedPolicyName("AmazonEKS_CNI_Policy"),
);

Sources

Pending editorial review. No editorial sources are listed yet.