What is Amazon Elastic Kubernetes Service (EKS)?

Amazon EKS


Amazon Elastic Kubernetes Service (EKS) is a managed Kubernetes service provided by Amazon Web Services (AWS) that simplifies the deployment, management, and scaling of containerized applications using Kubernetes on AWS infrastructure. EKS automates key tasks such as the provisioning, scaling, and management of the Kubernetes control plane and nodes, making it easier for users to run Kubernetes without the need to become experts in managing Kubernetes clusters.

Key Features of Amazon EKS

Managed Kubernetes Control Plane

Amazon EKS provides a fully managed Kubernetes control plane, which is the central component that manages Kubernetes clusters. This control plane runs across multiple AWS Availability Zones to ensure high availability. AWS handles the scaling and health monitoring of the control plane, relieving users from the operational overhead of managing it themselves.

Integration with AWS Services

EKS is deeply integrated with AWS services, providing seamless connectivity with services like Amazon EC2 for computing, Amazon VPC for networking, AWS IAM for authentication and authorization, and Amazon S3 for storage. This integration enhances the security and scalability of applications.

Security

EKS is designed with security in mind, providing features such as automated patching of the Kubernetes control plane, encryption at rest using AWS Key Management Service (KMS), and integration with AWS IAM for fine-grained access control.

Hybrid Deployment Capability

EKS supports hybrid deployments, allowing users to run Kubernetes clusters on AWS as well as on-premises. This is facilitated through EKS Anywhere and AWS Outposts, providing flexibility to run applications in a hybrid environment across the cloud and on-premises infrastructure.

Serverless Compute Options

EKS offers integration with AWS Fargate, a serverless compute engine, which allows users to run containers without having to manage servers or clusters. This option simplifies the deployment and management of applications.

Scalability

EKS supports automatic scaling of Kubernetes applications using the Kubernetes Horizontal Pod Autoscaler, which adjusts the number of pods in a deployment based on observed CPU utilization or other selected metrics. Additionally, EKS integrates with AWS Auto Scaling to manage the scaling of EC2 instances.

Open Source Compatibility

EKS runs upstream Kubernetes, meaning it is fully compatible with applications and tools developed for Kubernetes. This compatibility allows users to migrate existing Kubernetes applications to EKS without needing to modify them.

Pricing

EKS charges for the Kubernetes control plane on an hourly basis, providing a cost-effective solution for managing Kubernetes clusters. Users also pay for AWS resources (e.g., EC2 instances or Fargate pods) used to run their applications.

In summary, Amazon EKS is a robust, scalable, and secure managed Kubernetes service that leverages the breadth and depth of AWS services, making it easier for businesses to deploy, manage, and scale Kubernetes applications in the cloud or in hybrid environments.

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