Kubernetes vs. OpenShift – A Detailed Comparison
The upstream project goes head-to-head with Red Hat’s OpenShift in this comparison of Kubernetes offerings.
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Gartner predicts that by 2022, more than 75% of global organizations will be running containerized applications in production, which is a significant increase from fewer than 30% today.
Containerization is the latest tool used primarily to develop and deploy apps in an accelerated manner. In the era of serverless computing and container technology, containers have become highly popular for a long time now. With the increase in popularity, there is an increase in the complexity levels of large containerized applications. Here comes the need of efficient container management platforms that can help in easily managing containerized applications. Today, Kubernetes and OpenShift are two big names in this arena and have become a major player in the container revolution. Popular, effective, scalable, robust and simplistic – both have their own user community to boast.
Here are features that are present in both Kubernetes as well as OpenShift:
Productive, machine-agnostic concepts for development and IT teams
A modern, future-proof architecture
Modernization in distributed systems and large-scale app development
A robust and scalable architecture
Enhances the productivity level of developers to a great degree
By the year 2020, more than 50% of companies will use container technology, up from less than 20% in 2017.
Here is a first glance at both the container management platforms and their introductory parameters:
|Developers||Cloud Native Computing Foundation (CNCF)||Red Hat|
|Programming Language||Go||Go, Angular JS|
|Category||Cluster management software||Cloud computing, PaaS|
|License||Apache License 2.0||Apache License 2.0|
Let's go through the nuances of Kubernetes and OpenShift.
“Kubernetes (K8s) is an open-source system for automating deployment, scaling, and management of containerized applications.” – Kubernetes
Originally born at Google, Kubernetes was released in 2015 as an open-source tool for all. Later, Google handed over the entire project to Cloud Native Computing Foundation (CNCF), operated by the Linux Foundation. Kubernetes is an open-source container as a service (CaaS) orchestration systems that automate deploying, scaling and managing of containerized apps, speeding up the development procedure. Since it has been handled by Google taskforce, there is a certain level of maturity that exists.
Key Features Of Kubernetes
Offers the freedom to take advantage of on-premises, hybrid, or public cloud infrastructure, letting you effortlessly move workloads;
Rigorous self-checking of servers and containers;
Scalable enough to modify storage needs based on requirements;
Executable in varied environments and cloud setups;
Can automatically choose the ideal container location;
Seamless integration with popular storage systems;
Strong and active user community support;
Wide enriched support to multiple languages and frameworks.
Who Uses Kubernetes?
Spotify, Nav, IBM, Nokia, AppDirect, Philips, Ant Financial, China Unicom, Amadeus, Bose, Comcast, eBay and many more.
“The Kubernetes platform for big ideas. Empower developers to innovate and ship faster with the leading hybrid cloud, enterprise container platform.” – OpenShift
Developed by Red Hat, OpenShift is a containerization software solution whose prime product is the OpenShift container platform, a PaaS managed by Kubernetes. OpenShift has been called the “Enterprise Kubernetes” by its vendor, Red Hat. It is written in a combination of Go and AngularJS. It possesses an Apache License. The original version allows developers to develop and deploy apps to the cloud and appends tools over a Kubernetes core to fasten development and deployment process.
Key Features Of OpenShift
Supports multiple languages such as Go, Node JS, Ruby, Python, Java, Perl, PHP, etc;
Rapid app development with DevOps methodology;
Enables scaling of containerized applications automatically or manually;
Inbuilt security checks across the container and application stack;
Application visualization and monitoring through Prometheus;
Unified policy implementation for users;
Compatible with Kubernetes container workloads;
Easy migration to newer OS without rebuilding containerization orchestration.
Who Uses OpenShift?
Optus, HCA Healthcare, Deutsche bank, BMW, Intermountain Healthcare, ThoughtWorks, Worldpay Inc., and many more.
Kubernetes vs. OpenShift – A Comprehensive Comparison Of Important Parameters
OpenShift is grounded on Kubernetes, meaning there is a lot of similarity between both. Yet, there are some variances between both the platforms in a few important parameters.
|Point of Origin||It is an open-source project/framework, not a product||It is a product with many variations, for e.g. open-source OpenShift is OKD and not a project|
|Installation||Can be installed on almost any Linux distribution||Has limited options when it comes to installation|
|Key Cloud Platforms||Available on GKE on Google GCP, EKS on Amazon AWS and AKS on Microsoft Azure||Product available called OpenShift Online, OpenShift Dedicated and OpenShift on Azure|
|Security & Authentication||Well defined but not as stringent as OpenShift||Stricter security policies and authentication models|
|Usage of templates||Kubernetes Helm templates are flexible and easy to use||OpenShift templates are less user-friendly and flexible|
|Releases||It almost has 4 released a year||It falls behind in schedule with mostly 3 a year|
|Deployment||It has deployment objects implemented through controllers||It has DeploymentConfig objects implemented through logic|
|Updates||Deployment supports many concurrent updates at a time||DeploymentConfig does not support concurrent updates|
|Management of Container Images||There is no specific feature for management of container images||ImageStreams is ideal for easy management of container images and is unique to OpenShift|
|CI / CD||CI / CD possible with Jenkins but it is not integrated within the tool||Seamless CI / CD integration with Jenkins available|
|Learning Curve||Kubernetes does not have a very easy web console and hence a tad difficult for novices||OpenShift has a very useful web console and hence becomes attractive and easy for newbies|
|Initial Rollout||It is a little difficult for an initial rollout since it has additional components to go along||Has an easy rollout since it acts as a complete cluster solution with minimal add-ons|
|Enterprise Usage||Kubernetes caters to all categories but has nothing specific to enterprises||OpenShift was designed keeping in mind the enterprise and has many components meant for that|
|Networking||Brings along interfaces that can be utilized by 3rd party network plugins||Has OpenvSwitch, a native networking solution that gives 3 varied plugins|
|Web User Interface||Separate installation for dashboards, manual creation for the login page||Login page already available, easy creation of resources through a form|
Which One to Choose Is Always A Tough Question
Both are open-source; both have a common base with Kubernetes at the core of OpenShift; both are popular; and both aim to facilitate faster application development. Because of its unique features and reliance on Kubernetes, OpenShift does have an added advantage of easy installation. Kubernetes is experienced and well-proven, although it does require a proper strategy for installation. Kubernetes is a standardized version and is available on an increased number of platforms than OpenShift. But OpenShift has many built-in components that make app containerization faster and effective. On top of both comes a crucial decision – choosing the IT service provider who has the experience, expertise, and infrastructure to help you with the entire application development lifecycle. That holds more crucial and should be considered very sincerely.
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