This Guidance shows how to use Karmada with Amazon Elastic Kubernetes Service (Amazon EKS) to manage and run your cloud-native applications across multiple Kubernetes clusters on AWS. Karmada provides ready-to-deploy automation for multi-cluster application management, offering features like centralized multi-cloud management, high availability, failure recovery, and traffic scheduling. You can centrally manage and control multiple Kubernetes clusters through a single entry point without modifying your applications.

This Guidance is compatible with the Kubernetes API, allowing seamless integration with the existing Kubernetes suite of built-in policy sets to address a variety of deployment scenarios. These include policies for active-active configurations, remote disaster recovery, and geo-redundancy—allowing you to manage applications across multiple clusters with high availability and resilience.

Please note: [Disclaimer]

Architecture Diagram

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  • Karmada Control Plane

  • This architecture diagram shows how to deploy a Karmada Control Plane on an Amazon EKS parent cluster.

  • Application deployment to Karmada-managed EKS clusters

  • This diagram shows how to deploy applications to Karmada-managed Amazon EKS clusters.

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Well-Architected Pillars

The AWS Well-Architected Framework helps you understand the pros and cons of the decisions you make when building systems in the cloud. The six pillars of the Framework allow you to learn architectural best practices for designing and operating reliable, secure, efficient, cost-effective, and sustainable systems. Using the AWS Well-Architected Tool, available at no charge in the AWS Management Console, you can review your workloads against these best practices by answering a set of questions for each pillar.

The architecture diagram above is an example of a Solution created with Well-Architected best practices in mind. To be fully Well-Architected, you should follow as many Well-Architected best practices as possible.

  • Amazon EKS provides dynamic scaling of compute nodes across Availability Zones, enabling reliable and consistent Kubernetes cluster deployment, management, and upgrades using Infrastructure as Code (IaC). It also integrates with Amazon CloudWatch Container Insights for monitoring.

    Additionally, Karmada simplifies multi-cluster and multi-cloud Kubernetes management from a centralized portal, reducing operational overhead by applying policies and configurations uniformly across clusters for consistent application deployment and networking. Karmada also supports hybrid deployments across AWS accounts, allowing you to choose the most suitable infrastructure.

    Read the Operational Excellence whitepaper 

  • AWS Identity and Access Management (IAM) allows for the creation of policies with granular controls to specify the permitted and denied actions. The utilization of IAM policies facilitates adherence to the "principle of least privilege" with regards to resource access. Furthermore, IAM integrates with AWS CloudTrail to provide comprehensive logging of user activity, thereby enhancing auditing capabilities and visibility into actions performed.

    Additionally, Amazon EKS integrates with Amazon Virtual Private Cloud (Amazon VPC) to establish logical network isolation between the Kubernetes nodes. This network-level isolation, combined with granular access controls, serves to enhance the overall security posture of the Amazon EKS environment, which is built upon the open-source Kubernetes API. Together, they incorporate industry-standard security and encryption practices for both the platform and application layers.

    Read the Security whitepaper 

  • This Guidance supports a highly available topology in a number of ways. One, Amazon EKS deploys Kubernetes control and compute planes across multiple Availability Zones to provide high availability. Two, Amazon EKS uses Elastic Load Balancing (ELB) that routes application traffic to healthy nodes. Three, Amazon EKS sends cluster metrics to CloudWatch, enabling custom alerts based on thresholds. Four, Kubernetes has built-in high availability features, including a distributed etcd database and the ability to run the Control Plane on multiple servers across Availability Zones.

    Lastly, Karmada enhances reliability through cross-cluster load balancing and auto-scaling, dynamically scheduling workloads based on utilization. Karmada itself is designed for high availability with multi-master clustering and redundancy.

    Read the Reliability whitepaper 

  • Amazon EKS supports auto-scaling of compute nodes, which matches capacity to demand, improving performance efficiency. This includes various types of Amazon EC2 instances to better match the kind of workloads you are running.

    Karmada can deploy workloads closer to end-users on Amazon EKS clusters in different geographical locations, which reduces latency and improves the user experience. Integrated with Kubernetes native auto-scaling features, Karmada can help in automatically scaling applications based on the demand for efficient resource use.

    Read the Performance Efficiency whitepaper 

  • Amazon EKS charges a fixed monthly fee for the Control Plane and with it, you can use the capabilities of Kubernetes to optimize your pod resource requests and achieve lower costs. For example, Amazon EKS can automatically scale compute nodes based on workload demand to reduce over-provisioning and costs.

    In addition, Karmada simplifies the management and deployment of multiple Amazon EKS clusters and workloads across different clusters from a central location. This reduces the overhead costs related to the administration and management of multiple Amazon EKS clusters and their associated workloads.

    Read the Cost Optimization whitepaper 

  • Amazon EKS is designed to run on the highly efficient AWS cloud infrastructure, which has been engineered with sustainability in mind. This includes the use of custom-designed, ARM-based Graviton processors that deliver significantly higher performance-per-watt compared to traditional x86 chips. Beyond the energy-efficient hardware, the AWS data centers hosting Amazon EKS also incorporate innovative cooling and power distribution systems to maximize efficiency. By running on this AWS foundation built for sustainability, Amazon EKS is able to provide the required compute resources for containerized applications with a smaller environmental footprint compared to on-premises deployments.

    Read the Sustainability whitepaper 

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The sample code; software libraries; command line tools; proofs of concept; templates; or other related technology (including any of the foregoing that are provided by our personnel) is provided to you as AWS Content under the AWS Customer Agreement, or the relevant written agreement between you and AWS (whichever applies). You should not use this AWS Content in your production accounts, or on production or other critical data. You are responsible for testing, securing, and optimizing the AWS Content, such as sample code, as appropriate for production grade use based on your specific quality control practices and standards. Deploying AWS Content may incur AWS charges for creating or using AWS chargeable resources, such as running Amazon EC2 instances or using Amazon S3 storage.

References to third-party services or organizations in this Guidance do not imply an endorsement, sponsorship, or affiliation between Amazon or AWS and the third party. Guidance from AWS is a technical starting point, and you can customize your integration with third-party services when you deploy the architecture.

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