Best practice rules for Amazon Elastic Kubernetes Service (EKS) Cloud Conformity monitors Amazon Elastic Kubernetes Service (EKS) with the following rules: EKS Security Groups. 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. 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. There are several network policies which enable the user to have fine-grained control over the pod-to-pod communication. 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. • Data source integrations • Physical hardware, software, networking, and facilities • Provisioning • Application code • Container orchestration, provisioning Before starting, I want to recommend you this must-read article about Multi tenant Architecture SaaS Application on AWS. As well, include cloud-native principles, and finally, adopt the multi-tenant architecture best practices and considerations described in this article. Modular and Scalable Amazon EKS Architecture. Tenant namespaces can be easily isolated using this technique. Growth should introduce economies of scale, and cost should follow This helps you automate the load distribution and parallel processing of the applications running on the EKS cluster. Best Practices Current Best Practices includes a (hopefully) current guide for some best practices regarding Label usage and configuration in Loki. This section is a collection of best practices on how you can arrange the tools together to a platform. We are going to discuss some best practices for this implementation: Namespaces should be categorized based on usage. There are multiple best practices in context to the implementation of EKS multi tenancy. The diagram below shows multiple isolation layers: Some primary constructs which help to design EKS multi tenancy are for Compute, Networking, and Storage. It can provide better traffic management, observability, and security. CPU utilization and memory utilization can be controlled using ResourceQuotas. 03 In the left navigation panel, under Amazon EKS, select Clusters. It is good to make sure that the tenants do not have access to non-namespaced resources. Running as root creates by far the greatest risk, because root in a container has root on the node. AWS Elastic Container Service for Kubernetes (EKS) is a managed Kubernetes service ideal for large clusters of nodes running heavy and variable workloads. 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. EKS adds an element of high availability and scalability to your master nodes. Perhaps, the most useful and trendy tool which has come in this space is Kubernetes. Best Practices Cloud Platforms. EKS Architecture. The cluster can provide extreme network isolation. amazon ekskuberneteskubernetes multi tenantMulti tenantsaas architecture. » Next Steps These guides were updated in collaboration with the quick start team at AWS. 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 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. The next critical aspect to understand before getting started with EKS is the AWS EKS architecture. Infrastructure as Code & Amazon EKS on AWS Fargate. Kubernetes network policies help in this kind of micro-segmentation of containers. From a high level, a Kubernetes environment consists of a control plane (master), a distributed storage system for keeping the cluster state consistent (), and a number of cluster nodes (Kubelets). Ensure that AWS EKS security groups are configured to allow incoming traffic only on … Includes using resource quotas and pod disruption budgets. Amazon Elastic Kubernetes Service (EKS) now makes it easier to implement security best practices for Kubernetes on AWS with the Amazon EKS Best Practices Guide for Security. 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. 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. Why: EKS provides no automated detection of node issues. An embedded etcd instance is included in the StorageOS container, but for production environments and testing of production workloads, we recommend deploying an external etcd cluster. A service mesh provides additional security over the network, which spans outside the single EKS network. For the latest deployment, see Amazon EKS on the AWS Cloud. Includes using taints and tole… Similarly, you must ensure that each person should have ample access to resources in the apartment building when it comes to resource sharing. Now, let’s understand the challenges while creating a Kubernetes multi tenant environment through a metaphor. Amazon EKS provides secure, managed Kubernetes clusters by default, but you still need to ensure that you … For almost four years now, I’ve had the pleasure of hosting the #CIOChat forum on Twitter and LinkedIn. A successful application should serve multiple users at the same time. Below are best practices you can follow to set up Kubernetes networks effectively in Amazon EKS. Most of the Kubernetes object belongs to a particular namespace, which virtually isolates them from one another. Amazon EKS provides RBAC using different IAM policies. 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. Best practices for basic scheduler features 2.1. 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 Launched in 2006, the #CIOChat forum is one of the largest online forums for CIOs across the globe. Listen in as we are discussing best practices and pitfalls that we have learned over the past 18 months. However, multi-tenancy poses multiple challenges, as described in the metaphor above. Namespaces are nothing but a logical way to divide cluster resources between multiple resources. Pod: Pods are nothing but a collection of containers. Let us delve into the best practices and considerations for multi-tenant SaaS applications using Amazon EKS in this article. Twitter: @edXOnline. Amazon EKS security best practices. With this strategy, all the Tenant will have dedicated resources. 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. To achieve multi-tenancy, we need to create EKS clusters on AWS, which has multiple tenants on the workloads. A node leverages a hypervisor or dedicated hardware for the isolation of resources. Deploy another third-party monitoring or metrics collection service. Prioritizing and maintaining all of the initial set up and ongoing tasks will be foundational to tracking the health and security of your clusters. Cluster: A cluster is a collection of nodes and a control plane. Because of the way account permissions work in AWS, EKS's architecture is unusual and creates some small differences in your monitoring strategy. There are several layers in EKS which provide a specific layer of security and isolation for a Kubernetes multi tenancy SaaS application. Do not allow privilege escalation. A best practice is to send all application logs to stdout and all error logs to stderr. Introduction to Kubernetes. Organization: The Linux Foundation. When it comes to configuring Kubernetes Multi tenancy with Amazon EKS, there are numerous advantages. For example, if your application traffic is less during night time, then a static scale schedule will schedule the pods to sleep. Resource quotas enable users to limit the number of resources consumed within one namespace. You can achieve improved quality through infrastructure as code (IaC) standardization. Learn how we leverage a central repository of IaC resources for AWS CloudFormation and Terraform that define code conventions and best practices. Security is a critical component of configuring and maintaining Kubernetes clusters and applications. Architecture. As a cluster operator, work together with application owners and developers to understand their needs. Amazon EKS is a managed service that means you do not need to hire an expert to manage your infrastructure. There are certain best practices that you should consider for your Kubernetes multi tenancy SaaS application with Amazon EKS. Implementation of Resource Quotas can ensure proportionate resource usage across tenants. 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. PVCs are defined as namespace resources and hence provide better tenancy access to storage. It should provide that scale in a linear manner where adding extra resources results in at least a proportional increase in ability to serve additional load. Kubernetes also allows users to limit and define the CPU request and memory for the pods. 2. Also read: Apache and Ngnix Multi Tenant to Support SaaS Applications. 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). If you do use CloudWatch, you will want to enable detailed monitoring for the best observability. In this space, AWS provides a perfect platform for SaaS product deliveries, which highly complement its rich and diverse IaaS and PaaS offerings. This implies that all the tenants should have access to all the resources. 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. RBAC acts as a central component that offers a layer of isolation between the multiple tenants. This is an auto-scaling feature for the 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. In the architecture diagram below, we have multiple-tenants hosted on different and fully isolated namespaces. A k8s cluster (which EKS has incredibly simplified). Part 3 - EKS networking best practices. But, they do belong to a cluster. Amazon EKS provides different out-of-the-box integration of storage, including Amazon EBS, Amazon EFS, and FSx for Lustre. ECS is designed for AWS best practices, and for the orchestration of AWS services around your containers. What to do: Plan how to get notifications and how to handle security patches for your cluster and its nodes. These are Service Mesh and App Mesh. In this blog post, we’ll show you how to quickly and easily configure Artifactory as your Kubernetes registry for EKS. AWS does not provide a feed for Windows updates, © 2021 StackRox, Inc. All Rights Reserved. This is the management layer for your containers. 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. Price: Free, … StorageOS uses the etcd distributed key-value store to store essential cluster metadata and manage distributed configuration state. Each workload must be isolated. To optimize intelligent resource allocation, ResourceQuotas can be used. 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. Deployment Guide. You cannot create an architectural design where one person walks through another person’s apartment to get to the bathroom. Problems and considerations when building Kubernetes multi tenant architecture. Enhance Cluster Network Controls Using Calico The default network configuration in Kubernetes clusters allows network traffic to move freely between pods and to leave the cluster network. The architecture of EKS is capable of automatically running and managing Kubernetes clusters throughout different AZs. EKS InTec India Private Limited is a 100% subsidiary of EKS InTec GmbH located in Weingarten, Germany. 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. Multi-tenancy 1. Loft is a commercial offering with a free tier and is also included in the EKS Best Practices Guide for multi-tenancy. With EKS, there is no need to install, upgrade, or maintain any kind of plugins of tools. Note. I strongly recommend going for microservices (ECS/EKS), partially multi tenant SaaS in the app, and database layer. 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. A service mesh can also define better Authorization and Authentication policies for users to access different network layers. Namespaces in a … 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. EKS leaves a large share of operational overhead to the user. Non-namespaced resources do not specifically belong to a particular namespace. Best practices for cluster isolation 1.1. Each workload should have a fair share of resources like compute, networking, and other resources provided by Kubernetes. Concept. This article covered some of the best considerations for Kubernetes multi tenancy implementation using Amazon EKS. “Volume” is a major tool that Kubernetes offers, which provides a way to connect a form of persistent storage to a pod. Auditors will expect all of the practices described here to be in place. Some of the command categories can be: Enabling Role-Based Access Control allows better control of Kubernetes APIs for a different group of users. However, EKS has completely resolved such concerns with the delivery of a production-ready architecture. Provide RBAC ( Role-based access control ) forum is one of the applications running on cloud... Resources do not specifically belong to a particular namespace master nodes would any other EC2.... 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Application owners and developers to understand their needs this isolation between the multiple tenants application scaling-up,. Is an unexpected hike in the apartment building when it comes to resource sharing Kubernetes deployment Guide and Vault Kubernetes... This must-read article about multi tenant architecture SaaS application with Amazon EKS... EKS! Of any design it is popularly known as EKS traffic, or delete the cluster scoped resources namespace. One user to another practices Current best practices for this implementation: namespaces are nothing but a collection of and... Into another, network policies another person ’ s apartment to get notifications and how to security... And complexity of any application is usability person should have access to storage imperative!