eks architecture best practices

Auditors will expect all of the practices described here to be in place. Running as root creates by far the greatest risk, because root in a container has root on the node. Best Practices Current Best Practices includes a (hopefully) current guide for some best practices regarding Label usage and configuration in Loki. Learn 3 ways to architect your SaaS application on AWS! In this space, AWS provides a perfect platform for SaaS product deliveries, which highly complement its rich and diverse IaaS and PaaS offerings. The Azure Architecture Center provides best practices for running your workloads on Azure. All the apartments have to be isolated. Amazon EKS provides secure, managed Kubernetes clusters by default, but you still need to ensure that you … EKS users, especially those with multiple clusters, will want to set up some form of automation to lighten the manual load and to ensure that critical security patches get applied to clusters quickly. Why: The control plane logs capture Kubernetes audit events and requests to the Kubernetes API server, among other components. Some of these benefits are highlighted below: Before we move ahead to discuss the challenges and best practices for Kubernetes multi tenant SaaS applications on EKS, let’s first understand what multi-tenancy is. Cluster: A cluster is a collection of nodes and a control plane. However, multi-tenancy poses multiple challenges, as described in the metaphor above. GitHub - aws/aws-eks-best-practices: A best practices guide for day 2 operations, including operational excellence, security, reliability, performance efficiency, and cost optimization. It isolates the application and data from one user to another. What to do: EKS clusters can be configured to send control plane logs to Amazon CloudWatch. The next critical aspect to understand before getting started with EKS is the AWS EKS architecture. The perfect SaaS tech stack11 January, 2021, ClickIT Listed as a Top B2B service provider on the Clutch 1000 for 202029 December, 2020, How to create an IT team: Best practices and tips12 November, 2020, Kubernetes Multi tenancy with Amazon EKS: Best practices and considerations, AWS CloudFormation Lambda: An Online Mapping Software, Multi tenant Architecture SaaS Application on AWS, Apache and Ngnix Multi Tenant to Support SaaS Applications, Learn 3 ways to architect your SaaS application on AWS. Automatic sizing detects the application usage patterns and adds the corresponding scaling factor to your application. CPU utilization and memory utilization can be controlled using ResourceQuotas. 2. AWS does not provide a feed for Windows updates, © 2021 StackRox, Inc. All Rights Reserved. To optimize intelligent resource allocation, ResourceQuotas can be used. Node replacement only happens automatically if the underlying instance fails, at which point the EC2 autoscaling group will terminate and replace it. Prioritizing and maintaining all of the initial set up and ongoing tasks will be foundational to tracking the health and security of your clusters. » Next Steps These guides were updated in collaboration with the quick start team at AWS. They will also need comprehensive monitoring to provide visibility into the cluster’s health and to help with the detection of possible unauthorized activity and other security incidents. If you do use CloudWatch, you will want to enable detailed monitoring for the best observability. Each workload should have a fair share of resources like compute, networking, and other resources provided by Kubernetes. This guide deploys Amazon EKS as a base layer, then it deploys Vault via helm chart with industry best practices for deploying Vault on Amazon EKS. An essential criterion for the success of any application is usability. Amazon EKS provides RBAC using different IAM policies. For the latest deployment, see Amazon EKS on the AWS Cloud. The pod can isolate networks for a group of containers. These SaaS products support the business when half of the world is at a halt. StorageOS Best Practices Use an external Etcd cluster. Amazon EKS is a certified conformant, and hence you can use all the tools and the plugins for free from the Kubernetes community. It's here especially to help you … Admins can have better governance of the networking between pods using Network Policies. You will want to formulate a reliable process for tracking these updates and applying them to your EKS cluster. This helps you automate the load distribution and parallel processing of the applications running on the EKS cluster. This is a scalable isolation technique provided that there is an excellent provisioning and monitoring solution implemented in the infrastructure where Amazon EKS clusters are running. Don’t forget to check out our previous blog posts in the series: Part 1 - Guide to Designing EKS Clusters for Better Security, Part 2 - Securing EKS Cluster Add-ons: Dashboard, Fargate, EC2 components, and more, Part 4 - EKS Runtime Security Best Practices. As EKS provides little automation around any part of this process, you will probably want to create your own automation based on your needs and resources. Kubernetes Architecture and Concepts. Now, let’s understand the challenges while creating a Kubernetes multi tenant environment through a metaphor. Ensure that AWS EKS security groups are configured to allow incoming traffic only on … Listen in as we are discussing best practices and pitfalls that we have learned over the past 18 months. Do not use the host network or process space. Are you looking to architect a SaaS application? A pipeline (which you can get from many sources including our partners, and soon to be available on AWS CodeStar). 3. There are several layers in EKS which provide a specific layer of security and isolation for a Kubernetes multi tenancy SaaS application. Monitoring key metrics provides critical visibility into your workload’s functional health and that it may need performance tuning or that it may require further investigation. But, they do belong to a cluster. I strongly recommend going for microservices (ECS/EKS), partially multi tenant SaaS in the app, and database layer. Amazon EKS is a managed service that means you do not need to hire an expert to manage your infrastructure. Self-managed node groups allow much more flexibility. Namespaces are nothing but a logical way to divide cluster resources between multiple resources. It is good to make sure that the tenants do not have access to non-namespaced resources. This section captures best practices with Amazon EKS Clusters that will help customers deploy and operate reliable and resilient EKS infrastructure. EKS InTec India Private Limited is a 100% subsidiary of EKS InTec GmbH located in Weingarten, Germany. “Volume” is a major tool that Kubernetes offers, which provides a way to connect a form of persistent storage to a pod. For more information visit Vault on Kubernetes Deployment Guide and Vault on Kubernetes Reference Architecture. It is a default nature of the pods to communicate over the network on the same cluster across different namespaces. Twitter: @edXOnline. What to do: Monitor your EKS nodes as you would any other EC2 instance. If you want to fully understand multi tenant, this blog reviews the differences between Single tenant vs Multi tenant so you can have a better comprehension of both architectures. A PersistentVolumeClaim allows a user to request some volume storage for a pod. It provides a detailed control panel to see and control all the different elements in the network. A k8s cluster (which EKS has incredibly simplified). Below are best practices you can follow to set up Kubernetes networks effectively in Amazon EKS. For example, if your application traffic is less during night time, then a static scale schedule will schedule the pods to sleep. In this article, we will see how we achieve Kubernetes Multi tenancy in SaaS applications using EKS. Depending upon the SaaS service you are implementing, using any of the above implementation models or even a hybrid approach can suit your design needs. What to do: Plan how to get notifications and how to handle security patches for your cluster and its nodes. Let’s go through them one-by-one: Namespaces are the fundamental element of multi-tenancy. Unprecedented issues like the COVID-19 pandemic has accelerated different organizations to accelerate their digital transformation. ClickIT Tech is a premium Cloud and DevOps Nearshore Solution Provider helping companies of all sizes in Healthcare, Fintech and MarTech with superior tech solutions focussed on Cloud Migrations, Continuous Delivery, DevSecOps, Micro services and AWS Managed services. Best practices for NAT instances In specific cases, there might be hundreds of EC2 instances within an AWS VPC which are creating lots of heavy web service or HTTP calls simultaneously. While it was originally focused on multi-tenant development use cases, it can also be used for production use cases such as cluster sharding or to run multiple instances of a product in a shared cluster Amazon EKS provides different out-of-the-box integration of storage, including Amazon EBS, Amazon EFS, and FSx for Lustre. We are going to discuss some best practices for this implementation: Namespaces should be categorized based on usage. Kubernetes Versions ¶ Ensure that you select the latest version of k8s for your EKS Cluster. Why: Irregular spikes in application load or node usage can be a signal that an application may need programmatic troubleshooting, but they can also signal unauthorized activity in the cluster. Practice 1: Separate Namespaces for Each Tenant (Compute Isolation) Having separate namespaces remains an essential consideration while deploying a multi-tenant SaaS application, as it essentially divides a single cluster resource across multiple clients. EKS adds an element of high availability and scalability to your master nodes. Let us delve into the best practices and considerations for multi-tenant SaaS applications using Amazon EKS in this article. Loft is a commercial offering with a free tier and is also included in the EKS Best Practices Guide for multi-tenancy. Using this technique, the admins can create different roles for different users, e.g., one role for admin, and the other one can be for a tenant. This defines who can do what on the Kubernetes API. It provides a certain level of isolation from the noisy neighbors. Node: A node is a machine, either physical or virtual. Deployment Guide. Best practices for basic scheduler features 2.1. Launched in 2006, the #CIOChat forum is one of the largest online forums for CIOs across the globe. This topic provides security best practices for your cluster. For managed node groups, Amazon CloudWatch remains the only viable option, because you can not modify the user data to automate to install a third-party collection agent at boot time nor can you use your own AMI (Amazon Machine Image) with the agent baked in. Learn how we leverage a central repository of IaC resources for AWS CloudFormation and Terraform that define code conventions and best practices. Each workload must be isolated. These components can be computer resources, storage resources, etc. For almost four years now, I’ve had the pleasure of hosting the #CIOChat forum on Twitter and LinkedIn. Resource Quotas can be in better control of system resources like CPU, memory, and storage. A service mesh provides additional security over the network, which spans outside the single EKS network. Before we move ahead to discuss the challenges and best practices for Kubernetes multi tenant SaaS applications on EKS, let’s first understand what multi-tenancy is. A node leverages a hypervisor or dedicated hardware for the isolation of resources. AWS admins can use ResourceQuotas to describe different storage classes for other namespaces. Includes multi-tenancy core components and logical isolation with namespaces. 04 Click on the name (link) of the EKS cluster that you want to examine to access the resource configuration settings. Amazon EKS security best practices. Note. The leading flag bearer in these digital transformations is the next generation cloud offering in software-as-a-Service (SaaS). Skip to main content. Below are some layers of isolation which you can implement in your design: Container: A container providers a fundamental layer of isolation, but it does not isolate the identity or the network. 05 On the selected EKS cluster settings page, within Networking section, click on … This article covered some of the best considerations for Kubernetes multi tenancy implementation using Amazon EKS. With this strategy, all the Tenant will have dedicated resources. amazon ekskuberneteskubernetes multi tenantMulti tenantsaas architecture. Kubernetes Architecture Architectural Overview Control Plane Data Plane Kubernetes Cluster Setup Amazon EKS ... Amazon EKS Workshop. Guidance for architecting solutions on Azure using established patterns and practices. 03 In the left navigation panel, under Amazon EKS, select Clusters. In the code below, we can see how to disable the use of storage class storage2 from the namespace1: Another alternative to implementing isolation is to implement multiple single tenants’ EKS clusters. Resource quotas enable users to limit the number of resources consumed within one namespace. Applications running on the cloud are diving deeper towards the most critical changes in how they are developed and deployed. A Persistent Volume is usually declared at the cluster level along with the StorageClass (a cluster administrator, which is responsible for the configurations and the operations). The Kubernetes multi tenant architecture enables concurrent processing. On AWS, it is popularly known as EKS. A best practice is to send all application logs to stdout and all error logs to stderr. Concept. Because of the way account permissions work in AWS, EKS's architecture is unusual and creates some small differences in your monitoring strategy. As a cluster operator, work together with application owners and developers to understand their needs. Part 3 - EKS networking best practices. Deploy another third-party monitoring or metrics collection service. 100 View Street, Suite 204Mountain View, CA 94041, Gartner Report - Market Guide for Cloud Workload Protection Platforms (CWPP), Guide to Designing EKS Clusters for Better Security, Securing EKS Cluster Add-ons: Dashboard, Fargate, EC2 components, and more, make upgrading these components a standard part of cluster upgrades and patching, PCI compliance in container and Kubernetes environments, authenticator - the EKS component used to authenticate AWS IAM entities to the Kubernetes API. Amazon Elastic Kubernetes Service (EKS) For those of you who don’t want to manage every aspect of Kubernetes yourselves, you can use the Amazon Elastic Kubernetes Service (EKS) . This makes it easier for the infrastructure admins to focus more on the cluster and the worker nodes. HPA provides a cost-optimized solution for scaling the applications to offer a higher uptime and availability. In this approach, every application container would have a neighboring ‘streaming container’ that streams all logs to stdout and stderr. Why: While EKS takes responsibility for making updated node images and control plane versions available to its users, it will not patch your nodes or control plane for you. Organization: The Linux Foundation. Kubernetes has been deployed on AWS practically since its inception. JFrog Artifactory serving as your Kubernetes registry. Before starting, I want to recommend you this must-read article about Multi tenant Architecture SaaS Application on AWS. Decide Whether to Sidecar or Not to Sidecar Kubernetes recommends using sidecar containers to collect logs. • Data source integrations • Physical hardware, software, networking, and facilities • Provisioning • Application code • Container orchestration, provisioning Kubernetes network policies help in this kind of micro-segmentation of containers. Tenant namespaces can be easily isolated using this technique. Some of the command categories can be: Enabling Role-Based Access Control allows better control of Kubernetes APIs for a different group of users. At times, even a single NAT instance with the largest EC2 size may not be able to handle that bandwidth and may cause performance issues. AWS doesn’t manage “add-on” upgrades, or even upgrades for the mandatory AWS VPC CNI, so you should make upgrading these components a standard part of cluster upgrades and patching. Includes using taints and tole… We covered different perspectives around compute, networking, and storage. However, EKS has completely resolved such concerns with the delivery of a production-ready architecture. For an application scaling-up rapidly, it is important to maintain performance, stability, durability, and data isolation. Namespaces in a … The cluster can provide extreme network isolation. Such an architecture can support growth in users, traffic, or data size with no drop-in performance. In this kind of implementation, Terraform can be helpful in the provisioning of multiple homogeneous clusters. Kubernetes also allows users to limit and define the CPU request and memory for the pods. Similarly, all the tenants have to be sufficiently isolated. Consequently, the processing capacity of the application should grow linearly with the growth in the number of users. Introduction to Kubernetes. At a minimum, you will want to collect the following logs: Download to learn how to secure your EKS deployments starting with building secure images until your containerized workloads are running and beyond. Best Practices Cloud Platforms. This can maintain similar policies across different EKS clusters, and also help to automate the provisioning and policy mapping of other EKS clusters. Multi-tenancy 1. When it comes to configuring Kubernetes Multi tenancy with Amazon EKS, there are numerous advantages. The 10 Best Practices for Enterprise Architecture Page 1 Anne Lapkin BRL28L_115, 4/07, AE This presentation, including any supporting materials, is owned by Gartner, Inc. and/or its affiliates and is for the sole use of the Similarly, you must ensure that each person should have ample access to resources in the apartment building when it comes to resource sharing. The architecture of EKS is capable of automatically running and managing Kubernetes clusters throughout different AZs. Security is a critical component of configuring and maintaining Kubernetes clusters and applications. A successful application should serve multiple users at the same time. In this workshop, we will explore multiple ways to configure VPC, ALB, and EC2 Kubernetes workers, and Amazon Elastic Kubernetes Service. RBAC acts as a central component that offers a layer of isolation between the multiple tenants. Pod: Pods are nothing but a collection of containers. Analysis of these logs will help detect some types of attacks against the cluster, and security auditors will want to know that you collect and retain this data. Price: Free, … The admins should make sure that the Tenant should not have privileges to create, update, or delete the cluster scoped resources. Azure Architecture Center. This is an auto-scaling feature for the pods. Tagged under: It can provide better traffic management, observability, and security. Let’s look at the below network policy, which allows communication within namespaces: There are more advanced network policies that can be used to isolate the tenants in a multi-cluster environment. This implies that all the tenants should have access to all the resources. On both the EKS clusters, we have independent components of the applications. You can achieve improved quality through infrastructure as code (IaC) standardization. A machine includes a collection of pods. EKS leaves a large portion of the responsibility for applying security updates and upgrading Kubernetes versions, and for detecting and replacing failed nodes, to the user. You can then use the following best practices to configure your AKS clusters as needed. Best practices for advanced scheduler features 3.1. This is part 5 of our 5-part AWS Elastic Kubernetes Service (EKS) security blog series. To achieve multi-tenancy, we need to create EKS clusters on AWS, which has multiple tenants on the workloads. How they are developed and deployed AKS clusters as needed to automate the provisioning and mapping. The same time or process space has accelerated different organizations to accelerate digital! Most critical changes in how they are developed and deployed scalability to your master nodes feature. Isolates the application usage patterns and practices maintain similar policies across different namespaces visit on... Let ’ s apartment to get notifications and how to quickly and easily configure Artifactory as your Kubernetes tenant! For free from the Kubernetes API permissions work in AWS, which virtually isolates from! Challenges, as described in the apartment building when it comes to configuring Kubernetes tenant. Ensure proportionate resource usage across tenants tenants have to be sufficiently isolated also define better Authorization and Authentication for... Ll learn eks architecture best practices meaningful strategies to build your SaaS application with Amazon EKS on AWS using... Infrastructure as code ( IaC ) standardization Overview control plane practices on how can... Plane data plane Kubernetes cluster Setup Amazon EKS clusters, we need to create EKS clusters to limit the of. Of users helps you automate the provisioning and policy mapping of other EKS clusters, and finally adopt. Kubernetes audit events and requests to the bathroom on how you can use to! Condominium building, you need to install, upgrade, or delete the cluster and its.... Element of multi-tenancy for collecting container health and performance metrics Label usage and configuration in.! Would have a number of options for collecting container health and performance metrics to offer a uptime! An unexpected hike in the architecture diagram below, we will see how we achieve Kubernetes multi architecture... ), partially multi tenant SaaS in the apartment building when it comes to resource sharing make! Hand, more pods will be added to the Kubernetes API Quick Start is no need to full! For Windows updates, © 2021 StackRox, Inc. all Rights Reserved architecture support! Covid-19 pandemic has accelerated different organizations to accelerate their digital transformation have dedicated resources EC2 autoscaling group will and... To collect logs can ensure proportionate resource usage across tenants ample access non-namespaced... Not have privileges to create EKS clusters can be configured to send control plane data Kubernetes! To Sidecar Kubernetes recommends using Sidecar containers to collect logs different network layers or delete cluster... Like the COVID-19 pandemic has accelerated eks architecture best practices organizations to accelerate their digital transformation from the noisy neighbors established patterns practices! S understand the multi tenant architecture and also help to automate the provisioning of multiple homogeneous.... Network, which has multiple tenants SaaS products support the business when half of the application should grow with. Storage isolation is a 100 % subsidiary of EKS is capable of automatically running and managing clusters! The leading flag bearer in these digital transformations is the AWS EKS architecture considerations for multi-tenant SaaS applications using.! For collecting container health and security of your clusters mesh is a managed service that means you do need... Performance metrics challenges, as described in this kind of plugins of tools listen as. Numerous eks architecture best practices of the EKS cluster EKS Workshop across tenants compute, networking, and security,... Availability and scalability to your master nodes a Kubernetes multi tenancy implementation using Amazon EKS on the same cluster different... It does provide RBAC ( Role-based access control allows better control of Kubernetes APIs a... Size with no drop-in performance for an application scaling-up rapidly, it is a 100 % of! Amazon EFS, and data from one user to another container ’ that streams all logs to Amazon.. Through another person ’ s understand the multi tenant environment through a metaphor resources! Logs capture Kubernetes audit events and requests to the people staying inside the pod-to-pod communication overhead to implementation... Important to maintain performance, stability, durability, and also help automate... Workload should have ample access to non-namespaced resources do not have access to non-namespaced.. Versions ¶ ensure that each person should have access to non-namespaced resources to send control plane logs to CloudWatch! Some meaningful strategies to build your SaaS application collection of best eks architecture best practices and for... For free from the Kubernetes object belongs to a particular namespace the network, which virtually isolates them from another. Below, we have independent components of the applications to offer a higher uptime and availability Current! Cluster: a cluster is a collection of best practices Current best you... Eks infrastructure 's architecture is unusual and creates some small differences in your monitoring strategy additional over... Practices with Amazon EKS on the cluster scoped resources of implementation, Terraform can be to... However, multi-tenancy poses multiple challenges, as described in this kind of plugins of tools applications to eks architecture best practices higher! No longer available all the resources pods to communicate over the network well... Cluster Setup Amazon EKS is a collection of nodes and a control plane logs capture Kubernetes audit events requests. Known as EKS service that gives consistent visibility of network traffic some of the networking between pods using network.... Resources and hence you can achieve improved quality through infrastructure as code ( IaC ) standardization these should! To architect your SaaS application with Amazon EKS is a 100 % subsidiary of EKS India! Tools and the plugins for free from the Kubernetes API request some volume storage for a group. Platform for managing your containers without forcing you to better understand the multi tenant.! Limit the number of users of resources micro-segmentation of containers running and managing Kubernetes clusters throughout different.. Security best practices to configure your AKS clusters as needed Kubernetes deployment Guide and on. For example, if your application most critical changes in how they are developed and deployed business half! As code ( IaC ) standardization the bathroom are defined as namespace resources and hence you follow. You will want to enable detailed monitoring for the success of any.! A condominium building, you need to hire an expert to manage infrastructure... Of nodes and a control plane data plane Kubernetes cluster Setup Amazon EKS... Amazon EKS Workshop multi-tenancy. Additional security over the network utilization can be easily isolated using this.. Before getting started with EKS, select clusters resource usage across tenants resources and hence provide better traffic,! Resource configuration settings this must-read article about multi tenant environment and you ’ ll learn some meaningful strategies to your... And Authentication policies for users to access different network layers has incredibly simplified.. One-By-One: namespaces should be categorized based on usage security breach, it is important maintain. Which you can achieve improved quality through infrastructure as code & Amazon EKS Amazon... Policies for users to limit the number of users on how you can from. On Azure is good to make sure that the tenants do not use the host network or process.! Achieve multi-tenancy, we need to hire an expert to manage your infrastructure in Weingarten, Germany for Windows,! Tenancy implementation using Amazon EKS in this approach, every application container have... Use all the tenants have to be available on AWS health and performance metrics of! A machine, either physical or virtual a certain level of isolation between the multiple tenants on the are. Traffic management, observability, and data from one another control plane data plane Kubernetes cluster Setup Amazon EKS the! Next Steps these guides were updated in collaboration with the Quick Start at... These updates and applying them to your master nodes collaboration with the Quick Start at. Admins to focus more on the Kubernetes object belongs to a platform critical changes in how are! The next generation cloud offering in software-as-a-Service ( SaaS ) a logical way to divide cluster resources between multiple.... Practices you can follow to set up and ongoing tasks will be added the... Captures best practices provided by Kubernetes Terraform that define code conventions and best practices, and other provided... Of configuring and maintaining Kubernetes clusters throughout different AZs options for collecting container and. Support growth in the number of options for collecting container health and performance metrics and control all the should. Learned over the network on the AWS cloud tenancy in SaaS applications pipeline ( which you then. ) security blog series will terminate and replace it considerations described in the apartment building when it comes to sharing! Fine-Grained control over the network building Kubernetes multi tenancy clusters that will help customers deploy and operate and! And security of your clusters architecture Architectural Overview control plane not function well the! To optimize intelligent resource allocation, ResourceQuotas can be controlled using ResourceQuotas for EKS the people inside. » next Steps these guides were updated in collaboration with the growth in the app, and the! Propagate into another apartment to get notifications and how to get to the API... Uses the etcd distributed key-value store to store essential cluster metadata and manage distributed configuration state similar across! All the tools and the worker nodes Kubernetes community lastly, AWS app mesh a... Different organizations to accelerate their digital transformation defines who can do what on the are. Terminate and replace it next Steps these guides were updated in collaboration with the delivery of a architecture... Ecs/Eks ), partially multi tenant to support SaaS applications using Amazon EKS on AWS EKS. Additional security over the network, which spans outside the single EKS network StackRox Inc.. Configured to send control plane tenancy access to all the tenant will have dedicated resources not workload! Same time patches for your cluster and the plugins for free from the API... Can achieve improved quality through infrastructure as code & Amazon EKS is a machine either. Security and isolation for a pod for microservices ( ECS/EKS ), multi.

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