Amazon Elastic Kubernetes Service (EKS)

Jaiinfoway company offers Amazon Elastic Kubernetes Service (EKS), a managed service that simplifies the deployment, scaling, and management of Kubernetes clusters. With EKS, our customers can run their containerized workloads on a fully managed Kubernetes cluster without the need to install and operate their own Kubernetes control plane.

What is Amazon EKS?

Amazon Elastic Kubernetes Service (EKS) is a fully managed service provided by Amazon Web Services (AWS) for deploying and scaling containerized applications using Kubernetes. EKS runs the Kubernetes management infrastructure for you across multiple AWS availability zones and automatically detects and replaces unhealthy control plane nodes. It also provides automatic version upgrades and patching for the Kubernetes control plane. With EKS, you can run your containerized workloads on a fully managed Kubernetes cluster without the need to install and operate your own Kubernetes control plane. EKS also integrates with other AWS services such as Elastic Load Balancing, Amazon RDS, and Amazon S3, making it easy to build and operate highly available and scalable applications.

Building Scalable and Secure Applications with EKS and AWS –

Amazon Elastic Kubernetes Service (EKS) integrates with various AWS services to provide scalability and security for your applications. Some examples of these integrations include:

• Elastic Load Balancing: EKS can automatically create and configure an Elastic Load Balancer for your applications, which can distribute incoming traffic across multiple pods for increased availability and scalability.
• Amazon RDS: EKS can easily integrate with Amazon Relational Database Service (RDS) to provide a managed database service for your applications.
• Amazon S3: EKS can integrate with Amazon Simple Storage Service (S3) to provide a scalable and durable storage solution for your applications.
• AWS Identity and Access Management (IAM): EKS can use IAM for fine-grained access control to your Kubernetes cluster and resources.
• AWS Certificate Manager: EKS can use AWS Certificate Manager to provision, manage, and deploy Transport Layer Security/Secure Sockets Layer (TLS/SSL) certificates for your application
• AWS CloudTrail: EKS can use AWS CloudTrail to log and retain all API calls made to the EKS service, allowing you to monitor and troubleshoot your cluster.

Components

Amazon Elastic Kubernetes Service (EKS) is made up of several components that work together to provide a fully managed Kubernetes service. These are the main components of EKS:

1. Control Plane: The control plane is the brain of the Kubernetes cluster and is responsible for managing the state of the cluster and providing the APIs for interacting with the cluster. EKS automatically provisions and manages the control plane across multiple availability zones for high availability.
2. Worker Nodes: Worker nodes are the servers that run the containerized applications in the cluster. With EKS, you can launch and manage worker nodes using AWS Auto Scaling groups.
3. Kubernetes CLI: The Kubernetes command-line interface (CLI) is used to interact with the cluster, deploy and manage applications, and troubleshoot issues. EKS supports the standard Kubernetes CLI, making it easy to use the same tools you already use with other Kubernetes clusters.
4. Kubernetes API Server: The Kubernetes API server is the front-end for the Kubernetes control plane and exposes the Kubernetes API.
5. etcd: etcd is a distributed key-value store that stores the configuration data of the cluster, including the state of the various components and the desired state of the applications.
6. Kubernetes Pod: A pod represents a single instance of a running process in your cluster. Pods are the smallest and simplest unit in the Kubernetes object model that you create or deploy.
7. Kubernetes Service: A Kubernetes service is an abstraction that defines a logical set of pods and a policy by which to access them.
8. Kubernetes Ingress: Ingress is a collection of rules that allow inbound connections to reach the services in a Kubernetes cluster.
9. Kubernetes Dashboard: The Kubernetes Dashboard is a web-based user interface for Kubernetes clusters that allows you to manage and troubleshoot your applications.
10. Cluster Autoscaler: Cluster Autoscaler is a tool that automatically adjusts the number of worker nodes in an EKS cluster based on the resource usage of the pods running on the cluster.
11. Amazon CloudWatch: Amazon CloudWatch is used to monitor and troubleshoot your EKS clusters. You can use CloudWatch to view logs, metrics, and alarms for your cluster and its associated resources.
12. AWS Identity and Access Management (IAM): IAM is used to control access to your EKS clusters and resources.
13. Amazon Virtual Private Cloud (VPC): EKS clusters are created in a VPC and use VPC networking to securely connect to other services in your VPC.

Amazon EKS Storage

Amazon Elastic Kubernetes Service (EKS) provides several options for storage solutions for your containerized applications. These include:

1. Amazon Elastic Block Store (EBS): EBS is a block-level storage service that allows you to create and manage storage volumes that can be attached to instances. EBS can be used to provide storage for your worker nodes and can be used to store data for your applications that require high-performance storage.
2. Amazon Elastic File System (EFS): EFS is a file-level storage service that allows you to create and manage file systems that can be mounted to multiple instances. EFS can be used to provide shared storage for your worker nodes and can be used to store data for your applications that require shared storage.
3. Amazon Simple Storage Service (S3): S3 is an object-level storage service that allows you to store and retrieve files of any type. S3 can be used to store data for your applications that require high durability and scalability.
4. Kubernetes Persistent Volumes and Persistent Volume Claims: Kubernetes provides a way to create and manage storage volumes that can be used by pods. This can be used to store data for your applications that need to maintain state across restarts and updates.
5. Container Storage Interface (CSI) driver: Amazon EKS supports the Container Storage Interface (CSI) driver, which allows you to use third-party storage solutions that are compatible with the CSI specification. This can be used to store data for your applications that require specific storage solutions.

Amazon EKS Networking

Amazon Elastic Kubernetes Service (EKS) uses Amazon Virtual Private Cloud (VPC) networking to provide a secure and isolated network environment for your Kubernetes clusters. The main components of EKS networking include:

1. Virtual Private Cloud (VPC): EKS clusters are created in a VPC, which provides an isolated network environment for your cluster. You can create and configure VPCs to meet the specific networking requirements of your cluster.
2. Elastic Network Interface (ENI): Each worker node in an EKS cluster is associated with an Elastic Network Interface (ENI) that provides a unique IP address and MAC address for the node.
3. Security groups: Security groups are used to control inbound and outbound traffic to the worker nodes and control plane. You can use security groups to restrict access to your cluster based on IP address, port, and protocol.
4. Network address translation (NAT) gateway: NAT gateway is used to allow outbound traffic from the worker nodes to the Internet, while blocking inbound traffic.
5. VPC Endpoints: VPC endpoints allow you to privately connect to the services like S3, DynamoDB, and SQS, from your VPC without requiring an Internet Gateway, VPN, Network Address Translation (NAT) gateway, or firewall proxies.
6. Cluster VPC CNI: The Cluster VPC Containment Network Interface (CNI) is a VPC-specific CNI that provides an Amazon VPC CNI plugin and a VPC CNI controller. It provides the VPC specific functionality like creating ENIs and security groups, while allowing Kubernetes to manage the IP addresses, routes and policies.
7. Kubernetes Services: Kubernetes services provide a stable endpoint for pods, and can be accessed through a ClusterIP, LoadBalancer, or ExternalName type.

Security

Security is an important aspect of Amazon Elastic Kubernetes Service (EKS) and there are several components that work together to provide a secure environment for your clusters:

1. VPC: EKS clusters are created in a virtual private cloud (VPC), which provides an isolated network environment for your cluster. This allows you to control access to your cluster and other resources in your VPC.
2. Security groups: Security groups are used to control inbound and outbound traffic to the worker nodes and control plane. You can use security groups to restrict access to your cluster based on IP address, port, and protocol.
3. Network address translation (NAT) gateway: NAT gateway is used to allow outbound traffic from the worker nodes to the Internet, while blocking inbound traffic.
4. VPC Endpoints: VPC endpoints allow you to privately connect to the services like S3, DynamoDB, and SQS, from your VPC without requiring an Internet Gateway, VPN, Network Address Translation (NAT) gateway, or firewall proxies.
5. Cluster security group: The cluster security group manages communication between the control plane and the cluster’s compute resources (worker nodes and Fargate pods).
6. Encryption: EKS supports the encryption of data in transit and at rest for control plane and worker node communication, and for data stored in etcd.
7. Kubernetes RBAC:

Monitoring

Monitoring is an important aspect of Amazon Elastic Kubernetes Service (EKS) and there are several components that work together to provide monitoring and troubleshooting capabilities for your clusters:

1. Amazon CloudWatch: Amazon CloudWatch is used to monitor and troubleshoot your EKS clusters. You can use CloudWatch to view logs, metrics, and alarms for your cluster and its associated resources.
2. Kubernetes Dashboard: The Kubernetes Dashboard is a web-based user interface for Kubernetes clusters that allows you to manage and troubleshoot your applications.
3. Prometheus: Prometheus is an open-source monitoring solution that can be used to collect and query metrics from your EKS clusters.
4. Grafana: Grafana is an open-source monitoring solution that can be used to visualize metrics from your EKS clusters and other data sources.
5. Cluster Autoscaler: Cluster Autoscaler is a tool that automatically adjusts the number of worker nodes in an EKS cluster based on the resource usage of the pods running on the cluster.
6. Kube-state-metrics: Kube-state-metrics is a service that exposes cluster-level Kubernetes objects state metrics for Kubernetes clusters.
7. Kubernetes Audit logging: Kubernetes Audit logging captures all requests to the Kubernetes API server and logs them.
8. CloudTrail: CloudTrail records all AWS Management Console sign-in events and API calls made in the AWS Management Console by the AWS Management Console, SDKs, and command line tools to EKS.

Amazon EKS Deployment Options

Amazon Elastic Kubernetes Service (EKS) provides several options for deploying and managing your containerized applications. These include:

1. kubectl: kubectl is the command-line interface for Kubernetes, and can be used to deploy, manage, and troubleshoot applications on EKS clusters.
2. Helm: Helm is a package manager for Kubernetes that can be used to deploy and manage applications on EKS clusters. Helm charts provide a convenient way to package and deploy complex applications.
3. Amazon Elastic Container Service (ECS): ECS is a fully managed container orchestration service, and can be used to deploy and manage containerized applications on EKS clusters.
4. AWS App Runner: AWS App Runner is a fully managed service that makes it easy to build, test, and deploy containerized applications. It can be used to deploy and manage applications on EKS clusters.
5. AWS CodeDeploy: AWS CodeDeploy is a fully managed deployment service that can be used to deploy and manage applications on EKS clusters.
6. AWS CodePipeline: AWS CodePipeline is a continuous delivery service that can be used to automate the build, test, and deploy process for applications on EKS clusters.
7. AWS CloudFormation: AWS CloudFormation is a service that can be used to provision and manage infrastructure for EKS clusters.
8. Kubernetes Deployment: Kubernetes deployment is the native way of deploying the application on EKS clusters, it uses the kubectl command to deploy the application.

Amazon EKS On AWS Outposts

Amazon Elastic Kubernetes Service (EKS) On AWS Outposts is a service that allows customers to run Kubernetes clusters on AWS Outposts, which are fully managed and configurable compute and storage racks built with Amazon Web Services (AWS) technology that can be deployed within a customer’s data center or on-premises. EKS on Outposts allows customers to use the same APIs, control plane, and worker nodes as they do with EKS in the cloud, but with the ability to run their workloads closer to their on-premises infrastructure. This allows customers to take advantage of the scalability and security of EKS while also addressing their specific needs for running applications on-premises.

Amazon EKS Anywhere

Amazon Elastic Kubernetes Service (EKS) Anywhere is a service that allows customers to run Kubernetes clusters on any infrastructure, whether it is on-premises, in a multi-cloud environment, or at the edge. EKS Anywhere allows customers to use the same APIs, control plane, and worker nodes as they do with EKS in the cloud, but with the ability to run their workloads on any infrastructure that they choose. This allows customers to take advantage of the scalability and security of EKS while also addressing their specific needs for running applications on any infrastructure they choose. EKS Anywhere also allows customers to use familiar tools and workflows to manage their Kubernetes clusters, regardless of where the clusters are running.

Amazon EKS Distro

Amazon Elastic Kubernetes Service (EKS) Distro is a distribution of Kubernetes that is fully compatible with upstream Kubernetes and is used to run EKS clusters. It includes the Kubernetes control plane, worker nodes, and additional components such as Prometheus and Fluentd for monitoring, and ebtables for network management. EKS Distro is designed to make it easy for customers to run and manage Kubernetes clusters, with automatic upgrades and security patches, and with a focus on stability and compatibility. It also allows customers to use the same Kubernetes version as their on-premises clusters, and enables them to run the same Kubernetes version as in their hybrid environments. It also allows customers to use familiar tools and workflows to manage their Kubernetes clusters, regardless of the distribution they are using.

Amazon EKS Pricing

Amazon Elastic Kubernetes Service (EKS) is a fully managed service that is priced based on the number of running worker nodes and the resources consumed.

EKS pricing is based on the following:

• Control plane: There is a hourly rate for the control plane, which includes the management of the Kubernetes control plane and its availability.
• Worker Nodes: There is an hourly rate for each worker node that is running, which includes the management of the worker nodes and the resources they consume (such as CPU and memory).
• Networking: There are additional charges for data transfer, and for using services such as Elastic Network Interface (ENI) and Elastic IP addresses.
• Storage: There are additional charges for storage resources consumed by worker nodes, such as Elastic Block Store (EBS) and Elastic File System (EFS)
• Additional Services: There are additional charges for other services used in connection with EKS, such as Amazon CloudWatch for logging, Amazon Elastic Container Registry (ECR) for container images, and others.