Create kubeconfig automatically Create kubeconfig manually

Create a `kubeconfig` for Amazon EKS

In this section, you create a kubeconfig file for your cluster (or update an existing one).

This section offers two procedures to create or update your kubeconfig. You can quickly create or update a kubeconfig with the AWS CLI update-kubeconfig command automatically by using the AWS CLI, or you can create a kubeconfig manually using the AWS CLI or the aws-iam-authenticator.

Amazon EKS uses the aws eks get-token command, available in version 1.16.156 or later of the AWS CLI or the AWS IAM Authenticator for Kubernetes with kubectl for cluster authentication. If you have installed the AWS CLI on your system, then by default the AWS IAM Authenticator for Kubernetes will use the same credentials that are returned with the following command:


aws sts get-caller-identity

For more information, see Configuring the AWS CLI in the AWS Command Line Interface User Guide.

Create `kubeconfig` automatically

To create your kubeconfig file with the AWS CLI

Ensure that you have version 1.16.156 or later of the AWS CLI installed. To install or upgrade the AWS CLI, see Installing the AWS Command Line Interface in the AWS Command Line Interface User Guide.

Note

Your system's Python version must be 2.7.9 or later. Otherwise, you receive hostname doesn't match errors with AWS CLI calls to Amazon EKS.

You can check your AWS CLI version with the following command:
```
aws --version
```
Important

Package managers such yum , apt-get , or Homebrew for macOS are often behind several versions of the AWS CLI. To ensure that you have the latest version, see Installing the AWS Command Line Interface in the AWS Command Line Interface User Guide.
Use the AWS CLI update-kubeconfig command to create or update your kubeconfig for your cluster.
- By default, the resulting configuration file is created at the default kubeconfig path (.kube/config) in your home directory or merged with an existing kubeconfig at that location. You can specify another path with the --kubeconfig option.
- You can specify an IAM role ARN with the --role-arn option to use for authentication when you issue kubectl commands. Otherwise, the IAM entity in your default AWS CLI or SDK credential chain is used. You can view your default AWS CLI or SDK identity by running the aws sts get-caller-identity command.
- For more information, see the help page with the aws eks update-kubeconfig help command or see update-kubeconfig in the AWS CLI Command Reference.
Note

To run the following command, you must have permission to the use the eks:DescribeCluster API action with the cluster that you specify. For more information, see Amazon EKS identity-based policy examples.
```
aws eks --region <region-code> update-kubeconfig --name <cluster_name>
```
Test your configuration.
```
kubectl get svc
```
Note

If you receive any authorization or resource type errors, see Unauthorized or access denied (kubectl) in the troubleshooting section.

Output:
```
NAME             TYPE        CLUSTER-IP   EXTERNAL-IP   PORT(S)   AGE
svc/kubernetes   ClusterIP   10.100.0.1   <none>        443/TCP   1m
```

Create `kubeconfig` manually

To create your kubeconfig file manually

Create the default ~/.kube directory if it does not already exist.
```
mkdir -p ~/.kube
```

Open your favorite text editor and copy one of the kubeconfig code blocks below into it, depending on your preferred client token method.

To use the AWS CLI aws eks get-token command (requires version 1.16.156 or later of the AWS CLI):


apiVersion: v1
clusters:
- cluster:
    server: <endpoint-url>
    certificate-authority-data: <base64-encoded-ca-cert>
  name: kubernetes
contexts:
- context:
    cluster: kubernetes
    user: aws
  name: aws
current-context: aws
kind: Config
preferences: {}
users:
- name: aws
  user:
    exec:
      apiVersion: client.authentication.k8s.io/v1alpha1
      command: aws
      args:
        - "eks"
        - "get-token"
        - "--cluster-name"
        - "<cluster-name>"
        # - "--role"
        # - "<role-arn>"
      # env:
        # - name: AWS_PROFILE
        #   value: "<aws-profile>"

To use the AWS IAM authenticator for Kubernetes:


apiVersion: v1
clusters:
- cluster:
    server: <endpoint-url>
    certificate-authority-data: <base64-encoded-ca-cert>
  name: kubernetes
contexts:
- context:
    cluster: kubernetes
    user: aws
  name: aws
current-context: aws
kind: Config
preferences: {}
users:
- name: aws
  user:
    exec:
      apiVersion: client.authentication.k8s.io/v1alpha1
      command: aws-iam-authenticator
      args:
        - "token"
        - "-i"
        - "<cluster-name>"
        # - "-r"
        # - "<role-arn>"
      # env:
        # - name: AWS_PROFILE
        #   value: "<aws-profile>"

Replace the <endpoint-url> with the endpoint URL that was created for your cluster.
Replace the <base64-encoded-ca-cert> with the certificateAuthority.data that was created for your cluster.
Replace the <cluster-name> with your cluster name.
(Optional) To assume an IAM role to perform cluster operations instead of the default AWS credential provider chain, uncomment the -r or --role and <role-arn> lines and substitute an IAM role ARN to use with your user.
(Optional) To always use a specific named AWS credential profile (instead of the default AWS credential provider chain), uncomment the env lines and substitute <aws-profile> with the profile name to use.
Save the file to the default kubectl folder, with your cluster name in the file name. For example, if your cluster name is <devel>, save the file to ~/.kube/config-<devel>.
Add that file path to your KUBECONFIG environment variable so that kubectl knows where to look for your cluster configuration.
- For Bash shells on macOS or Linux:
```
export KUBECONFIG=$KUBECONFIG:~/.kube/config-<devel>
```
- For PowerShell on Windows:
```
$ENV:KUBECONFIG="{0};{1}" -f  $ENV:KUBECONFIG, "$ENV:userprofile\.kube\config-<devel>"
```

(Optional) Add the configuration to your shell initialization file so that it is configured when you open a shell.

For Bash shells on macOS:


echo 'export KUBECONFIG=$KUBECONFIG:~/.kube/config-<devel>' >> ~/.bash_profile

For Bash shells on Linux:


echo 'export KUBECONFIG=$KUBECONFIG:~/.kube/config-<devel>' >> ~/.bashrc

For PowerShell on Windows:


[System.Environment]::SetEnvironmentVariable('KUBECONFIG', $ENV:KUBECONFIG, 'Machine')

Test your configuration.
```
kubectl get svc
```
Note

If you receive any authorization or resource type errors, see Unauthorized or access denied (kubectl) in the troubleshooting section.

Output:
```
NAME             TYPE        CLUSTER-IP   EXTERNAL-IP   PORT(S)   AGE
svc/kubernetes   ClusterIP   10.100.0.1   <none>        443/TCP   1m
```

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Document Conventions

OIDC identity provider authentication

Installing aws-iam-authenticator

Create a kubeconfig for Amazon EKS

Create kubeconfig automatically

Create kubeconfig manually

Create a `kubeconfig` for Amazon EKS

Create `kubeconfig` automatically

Create `kubeconfig` manually