AWS API Changes

2018/06/04 - Amazon Elastic Container Service for Kubernetes - 4 new api methods

Changes Amazon Elastic Container Service for Kubernetes (Amazon EKS) is a fully managed service that makes it easy to deploy, manage, and scale containerized applications using Kubernetes on AWS. Amazon EKS runs the Kubernetes control plane for you across multiple AWS availability zones to eliminate a single point of failure. Amazon EKS is certified Kubernetes conformant so you can use existing tooling and plugins from partners and the Kubernetes community. Applications running on any standard Kubernetes environment are fully compatible and can be easily migrated to Amazon EKS.

DescribeCluster (new)

Link ¶

Returns descriptive information about an Amazon EKS cluster.

The API server endpoint and certificate authority data returned by this operation are required for kubelet and kubectl to communicate with your Kubernetes API server. For more information, see Create a kubeconfig for Amazon EKS.

Note

The API server endpoint and certificate authority data are not available until the cluster reaches the ACTIVE state.

See also: AWS API Documentation

Request Syntax

client.describe_cluster(
    name='string'
)

type name

string

param name

[REQUIRED]

The name of the cluster to describe.

rtype

dict

returns

Response Syntax

{
    'cluster': {
        'name': 'string',
        'arn': 'string',
        'createdAt': datetime(2015, 1, 1),
        'version': 'string',
        'endpoint': 'string',
        'roleArn': 'string',
        'resourcesVpcConfig': {
            'subnetIds': [
                'string',
            ],
            'securityGroupIds': [
                'string',
            ],
            'vpcId': 'string'
        },
        'status': 'CREATING'|'ACTIVE'|'DELETING'|'FAILED',
        'certificateAuthority': {
            'data': 'string'
        },
        'clientRequestToken': 'string'
    }
}

Response Structure

(dict) --
- cluster (dict) --
  
  The full description of your specified cluster.
  - name (string) --
    
    The name of the cluster.
  - arn (string) --
    
    The Amazon Resource Name (ARN) of the cluster.
  - createdAt (datetime) --
    
    The Unix epoch time stamp in seconds for when the cluster was created.
  - version (string) --
    
    The Kubernetes server version for the cluster.
  - endpoint (string) --
    
    The endpoint for your Kubernetes API server.
  - roleArn (string) --
    
    The Amazon Resource Name (ARN) of the IAM role that provides permissions for the Kubernetes control plane to make calls to AWS API operations on your behalf.
  - resourcesVpcConfig (dict) --
    
    The VPC subnets and security groups used by the cluster control plane. Amazon EKS VPC resources have specific requirements to work properly with Kubernetes. For more information, see Cluster VPC Considerations and Cluster Security Group Considerations in the Amazon EKS User Guide .
    - subnetIds (list) --
      
      The subnets associated with your cluster.
      - (string) --
    - securityGroupIds (list) --
      
      The security groups associated with the cross-account elastic network interfaces that are used to allow communication between your worker nodes and the Kubernetes control plane.
      - (string) --
    - vpcId (string) --
      
      The VPC associated with your cluster.
  - status (string) --
    
    The current status of the cluster.
  - certificateAuthority (dict) --
    
    The certificate-authority-data for your cluster.
    - data (string) --
      
      The base64 encoded certificate data required to communicate with your cluster. Add this to the certificate-authority-data section of the kubeconfig file for your cluster.
  - clientRequestToken (string) --
    
    Unique, case-sensitive identifier you provide to ensure the idempotency of the request.

DeleteCluster (new)

Link ¶

Deletes the Amazon EKS cluster control plane.

Note

If you have active services in your cluster that are associated with a load balancer, you must delete those services before deleting the cluster so that the load balancers are deleted properly. Otherwise, you can have orphaned resources in your VPC that prevent you from being able to delete the VPC. For more information, see Deleting a Cluster in the Amazon EKS User Guide .

See also: AWS API Documentation

Request Syntax

client.delete_cluster(
    name='string'
)

type name

string

param name

[REQUIRED]

The name of the cluster to delete.

rtype

dict

returns

Response Syntax

{
    'cluster': {
        'name': 'string',
        'arn': 'string',
        'createdAt': datetime(2015, 1, 1),
        'version': 'string',
        'endpoint': 'string',
        'roleArn': 'string',
        'resourcesVpcConfig': {
            'subnetIds': [
                'string',
            ],
            'securityGroupIds': [
                'string',
            ],
            'vpcId': 'string'
        },
        'status': 'CREATING'|'ACTIVE'|'DELETING'|'FAILED',
        'certificateAuthority': {
            'data': 'string'
        },
        'clientRequestToken': 'string'
    }
}

Response Structure

(dict) --
- cluster (dict) --
  
  The full description of the cluster to delete.
  - name (string) --
    
    The name of the cluster.
  - arn (string) --
    
    The Amazon Resource Name (ARN) of the cluster.
  - createdAt (datetime) --
    
    The Unix epoch time stamp in seconds for when the cluster was created.
  - version (string) --
    
    The Kubernetes server version for the cluster.
  - endpoint (string) --
    
    The endpoint for your Kubernetes API server.
  - roleArn (string) --
    
    The Amazon Resource Name (ARN) of the IAM role that provides permissions for the Kubernetes control plane to make calls to AWS API operations on your behalf.
  - resourcesVpcConfig (dict) --
    
    The VPC subnets and security groups used by the cluster control plane. Amazon EKS VPC resources have specific requirements to work properly with Kubernetes. For more information, see Cluster VPC Considerations and Cluster Security Group Considerations in the Amazon EKS User Guide .
    - subnetIds (list) --
      
      The subnets associated with your cluster.
      - (string) --
    - securityGroupIds (list) --
      
      The security groups associated with the cross-account elastic network interfaces that are used to allow communication between your worker nodes and the Kubernetes control plane.
      - (string) --
    - vpcId (string) --
      
      The VPC associated with your cluster.
  - status (string) --
    
    The current status of the cluster.
  - certificateAuthority (dict) --
    
    The certificate-authority-data for your cluster.
    - data (string) --
      
      The base64 encoded certificate data required to communicate with your cluster. Add this to the certificate-authority-data section of the kubeconfig file for your cluster.
  - clientRequestToken (string) --
    
    Unique, case-sensitive identifier you provide to ensure the idempotency of the request.

CreateCluster (new)

Link ¶

Creates an Amazon EKS control plane.

The Amazon EKS control plane consists of control plane instances that run the Kubernetes software, like etcd and the API server. The control plane runs in an account managed by AWS, and the Kubernetes API is exposed via the Amazon EKS API server endpoint.

Amazon EKS worker nodes run in your AWS account and connect to your cluster's control plane via the Kubernetes API server endpoint and a certificate file that is created for your cluster.

The cluster control plane is provisioned across multiple Availability Zones and fronted by an Elastic Load Balancing Network Load Balancer. Amazon EKS also provisions elastic network interfaces in your VPC subnets to provide connectivity from the control plane instances to the worker nodes (for example, to support kubectl exec , logs , and proxy data flows).

After you create an Amazon EKS cluster, you must configure your Kubernetes tooling to communicate with the API server and launch worker nodes into your cluster. For more information, see Managing Cluster Authentication and Launching Amazon EKS Worker Nodes in the Amazon EKS User Guide .

See also: AWS API Documentation

Request Syntax

client.create_cluster(
    name='string',
    version='string',
    roleArn='string',
    resourcesVpcConfig={
        'subnetIds': [
            'string',
        ],
        'securityGroupIds': [
            'string',
        ]
    },
    clientRequestToken='string'
)

type name

string

param name

[REQUIRED]

The unique name to give to your cluster.

type version

string

param version

The desired Kubernetes version for your cluster. If you do not specify a value here, the latest version available in Amazon EKS is used.

type roleArn

string

param roleArn

[REQUIRED]

The Amazon Resource Name (ARN) of the IAM role that provides permissions for Amazon EKS to make calls to other AWS API operations on your behalf. For more information, see Amazon EKS Service IAM Role in the Amazon EKS User Guide

type resourcesVpcConfig

dict

param resourcesVpcConfig

[REQUIRED]

The VPC subnets and security groups used by the cluster control plane. Amazon EKS VPC resources have specific requirements to work properly with Kubernetes. For more information, see Cluster VPC Considerations and Cluster Security Group Considerations in the Amazon EKS User Guide .

subnetIds (list) -- [REQUIRED]

Specify subnets for your Amazon EKS worker nodes. Amazon EKS creates cross-account elastic network interfaces in these subnets to allow communication between your worker nodes and the Kubernetes control plane.
- (string) --
securityGroupIds (list) --

Specify one or more security groups for the cross-account elastic network interfaces that Amazon EKS creates to use to allow communication between your worker nodes and the Kubernetes control plane.
- (string) --

type clientRequestToken

string

param clientRequestToken

Unique, case-sensitive identifier you provide to ensure the idempotency of the request.

This field is autopopulated if not provided.

rtype

dict

returns

Response Syntax

{
    'cluster': {
        'name': 'string',
        'arn': 'string',
        'createdAt': datetime(2015, 1, 1),
        'version': 'string',
        'endpoint': 'string',
        'roleArn': 'string',
        'resourcesVpcConfig': {
            'subnetIds': [
                'string',
            ],
            'securityGroupIds': [
                'string',
            ],
            'vpcId': 'string'
        },
        'status': 'CREATING'|'ACTIVE'|'DELETING'|'FAILED',
        'certificateAuthority': {
            'data': 'string'
        },
        'clientRequestToken': 'string'
    }
}

Response Structure

(dict) --
- cluster (dict) --
  
  The full description of your new cluster.
  - name (string) --
    
    The name of the cluster.
  - arn (string) --
    
    The Amazon Resource Name (ARN) of the cluster.
  - createdAt (datetime) --
    
    The Unix epoch time stamp in seconds for when the cluster was created.
  - version (string) --
    
    The Kubernetes server version for the cluster.
  - endpoint (string) --
    
    The endpoint for your Kubernetes API server.
  - roleArn (string) --
    
    The Amazon Resource Name (ARN) of the IAM role that provides permissions for the Kubernetes control plane to make calls to AWS API operations on your behalf.
  - resourcesVpcConfig (dict) --
    
    The VPC subnets and security groups used by the cluster control plane. Amazon EKS VPC resources have specific requirements to work properly with Kubernetes. For more information, see Cluster VPC Considerations and Cluster Security Group Considerations in the Amazon EKS User Guide .
    - subnetIds (list) --
      
      The subnets associated with your cluster.
      - (string) --
    - securityGroupIds (list) --
      
      The security groups associated with the cross-account elastic network interfaces that are used to allow communication between your worker nodes and the Kubernetes control plane.
      - (string) --
    - vpcId (string) --
      
      The VPC associated with your cluster.
  - status (string) --
    
    The current status of the cluster.
  - certificateAuthority (dict) --
    
    The certificate-authority-data for your cluster.
    - data (string) --
      
      The base64 encoded certificate data required to communicate with your cluster. Add this to the certificate-authority-data section of the kubeconfig file for your cluster.
  - clientRequestToken (string) --
    
    Unique, case-sensitive identifier you provide to ensure the idempotency of the request.

ListClusters (new)

Link ¶

Lists the Amazon EKS clusters in your AWS account in the specified region.

See also: AWS API Documentation

Request Syntax

client.list_clusters(
    maxResults=123,
    nextToken='string'
)

type maxResults

integer

param maxResults

The maximum number of cluster results returned by ListClusters in paginated output. When this parameter is used, ListClusters only returns maxResults results in a single page along with a nextToken response element. The remaining results of the initial request can be seen by sending another ListClusters request with the returned nextToken value. This value can be between 1 and 100. If this parameter is not used, then ListClusters returns up to 100 results and a nextToken value if applicable.

type nextToken

string

param nextToken

The nextToken value returned from a previous paginated ListClusters request where maxResults was used and the results exceeded the value of that parameter. Pagination continues from the end of the previous results that returned the nextToken value.

Note

This token should be treated as an opaque identifier that is only used to retrieve the next items in a list and not for other programmatic purposes.

rtype

dict

returns

Response Syntax

{
    'clusters': [
        'string',
    ],
    'nextToken': 'string'
}

Response Structure

(dict) --
- clusters (list) --
  
  A list of all of the clusters for your account in the specified region.
  - (string) --
- nextToken (string) --
  
  The nextToken value to include in a future ListClusters request. When the results of a ListClusters request exceed maxResults , this value can be used to retrieve the next page of results. This value is null when there are no more results to return.