It makes deployment harder on OpenShift and in most cases you need some external wrappers (like I do) to make it more flexible and useful in more complex scenarios than just simple, one pod application deployments. Hopefully, it will change in future with version 3 of Helm where there will be no Tiller component that makes it hard to make secure. It includes long-term, enterprise support from one of the leading Kubernetes contributors and open source software companies. Kubernetes Helm is more flexible and upcoming version 3 will make it more secure and applicable in more serious projects. The last thing regarding freedom of choice for your platform are services available on major cloud platforms. OpenShift is extensible with a customizable cartridge functionality that allows developers to add any other language they wish. OpenShift 4 has an integrated OperatorHub which is becoming the preferred way for provisioning services (i.e. For someone coming straight from Kubernetes world who used Helm and its charts, OpenShift templates as the main method of deployment whole stack of resources is just too simple. As an interesting fact, I want to mention that starting from OpenShift 3.10 Kubernetes Ingress objects are recognized by OpenShift and are translated/implemented by.. a router. Do you know how “easy” it is to change a tag for an image in a container registry? OpenShift is a platform as a service (PaaS) from Red Hat that is built on Docker and Kubernetes. OpenShift has a pre-integrated Jenkins framework so that it is easy to set up CI/CD. Here’s a list of my favorite features of integrated Jenkins on OpenShift: Once again an additional feature of OpenShift makes it easy to deploy your apps with CI/CD pipelines. According to the StackShare community, Google Kubernetes Engine has a broader approval, being mentioned in 248 company stacks & 252 developers stacks; compared to OpenShift, which is listed in 76 company stacks and 358 developer stacks. Origin also powers OpenShift Container Platform, which is the commercially supported version of Origin. kubernetes, OpenShift allows the users to install the product that offers paid support with a subscription. OpenShift is developed and supported by Red Hat. Also promoting applications by changing container tags and updating Deployment object definition is not a pleasant way to do it. After all they make it possible to deploy and manage our containerized apps in a way that was only available for unicorns like Google. GKE On-Prem Support; Istio on GKE Support; On the other hand, OpenShift provides the following key features: Built-in support for Node.js, Ruby, Python, PHP, Perl, and Java (the standard in today's Enterprise) OpenShift is extensible with a customizable cartridge functionality that allows developers to add any other language they wish. Google Kubernetes Engine vs OpenShift: What are the differences? EKS vs GKE vs AKS - April 2020 Updates Mar 31, 2020 EKS Networking Best Practices for Security and Operation Mar 30, 2020 Securing EKS Cluster Add-ons: Dashboard, Fargate, EC2 Components, and More Mar 24, 2020 Here's a link to OpenShift's open source repository on GitHub. A notable exception is that EKS is not available in the AWS government cloud; AKS, however, is in at least one Azure government cloud. Some of you may think I’m a total OpenShift fanboy, but in reality, I love working with both - OpenShift and Kubernetes. Also it requires internet connections so, Logging stack based on EFK (ElasticSearch, Fluentd, Kibana), with ImageStream you upload a container image once and then you manage it’s, with triggers you can achieve even more - having, you can hide the origin of the image by exposing it as an ImageStream - e.g. The subscription is inclusive of CloudForms, which further helps in enhancing the features of the product. When I initially explored OpenShift(circa version 3.6), I had a fair idea that it had many components in addition to Kubernetes, but wasn’t sure what it built on top of it. Containers make it easy to deploy applications across environments. And when it was finally released we almost got a new product. Each release includes security, performance, and defect fixes, validated and tested integrations for third-party plugins, and enterprise lifecycle support. Let’s dive in and check what are the real differences between those two. openshift, Categories: If you’re okay with self-support then of course there’s Kubernetes with plenty of side projects, whole ecosystem and fantastic community. Last part is authentication and authorization model. Definitely “secure by default” approach in OpenShift. On Kubernetes, however, you have much more choice, as Ingress is an interface implemented by multiple servers starting from most popular nginx, traefik, AWS ELB/ALB, GCE, Kong and others including HAproxy as well. For OpenShift there’s an item called OpenShift Online, OpenShift Devoted, and OpenShift on Purplish blue. Most of all OpenShift web console is very useful, much more than Kubernetes dashboard. On OpenShift there’s a oc command which is equivalent of Kubernetes’ kubectl with the following differences: Let’s face it - if you’re beginner then you won’t touch command line at first - you’d probably choose to play with some web interface. In OpenShift 4 it finally works as a Single-Sign-On (in version 3 you have to login to a service each time using the same credentials). kubeadm, kube-spray, kops), some of them are better for cloud, some are more universal and complex too and it’s up to you to decide how you want to install your cluster and upgrade it (if it’s supported by the tool). Kubernetes is an open-source framework for automating the management, deployment and scaling of containerized applications. https://dzone.com/articles/kubernetes-vs-openshift-what-is-the-difference OpenShift Container Platform creates nodes from a cloud provider, physical systems, or virtual systems. Containers are still new and having a complex, sophisticated interface for managing them makes it even harder to learn and adapt. We waited over 7 months for OpenShift Container Platform 4 release. Platform9 Managed Kubernetes (PMK) is the industry’s only SaaS-based, continuously managed Kubernetes service that runs anywhere and guarantees 99.9% uptime SLA with remote monitoring, healing, upgrading, and security patching.. OpenShift Online and OpenShift Dedicated are hosted services running only on AWS and do not let you leverage your existing on-premises infrastructure or edge … As a part of OpenShift you can install additional component such as. Additionally you can test your single node installations using the following methods: Kubernetes has become a standard and is available on more platforms than OpenShift. And redesigned version available in OpenShift 4: Now I’m not saying it’s the best web interface, but I consider it as one of the best features of OpenShift. There are multiple CI/CD software solutions available, but Jenkins is still the biggest, most universal, generic and mature solution. It has some drawbacks, but also one significant advantage over Kubernetes Deployment - you can use hooks to prepare your environment for an update - e.g. It’s a big step towards compatibility with configuration prepared for Kubernetes that now can be launched on OpenShift without any modifications. In Kubernetes there are Deployment objects (you can also use them in OpenShift with all other Kubernetes objects as well) responsible for updating pods in a rolling update fashion and is implemented internally in controllers. Containerization is the latest jargon today, in the world of IT, primarily to develop and deploy apps in an accelerated manner. To name just the most important functions: Operations tools: an official and supported way via Ansible allows the entire life cycle of OpenShift to be executed. With OpenShift v3, you can choose which images are built from source and that source can be located outside of OpenShift itself. The final thing concerning the opportunity of choice for your stage is administrations accessible on major cloud stages. Kubernetes vs OpenShift: Key Differences Compared With serverless computing and container technology being at the forefront, the demand for container technology has risen considerably. For OpenShift there’s a product called OpenShift Online, OpenShift Dedicatedand OpenShift on Azure. It is also often used with Kubernetes clusters to build container images, perform Continuous Integration tasks on them and deploy them as containers on multiple environments with Continuous Deployment pipelines. ... (GKE) on Google Cloud Platform. While Kubernetes helps automate application deployment, scaling, and operations, OpenShift is the container platform that works with Kubernetes to help applications run more efficiently. OAuth authentication - use your OpenShift login to log in to Jenkins and depending on the role you have on the project you get one of three jenkins role assigned (view, edit or admin). There are some other options available in OpenShift 3 such as Automation Broker (formerly Ansible Service Broker) or Service Catalog, but they can be installed on Kubernetes while Helm is not a (supported) option on OpenShift. Bare metal installations are still possible but currently they require many manual steps. one time. OpenShift as Kubernetes Distribution. There are additional mechanisms in OpenShift that makes integration with Active Directory easy, but more interesting part is authorization to external apps. Jun 11th, 2019. There’s no clear winner here. OpenShift DeploymentConfig has more options and support ImageStream so I’m choosing it over classic Kubernetes Deployment. There’s also no denying that OpenShift is the gold standard for security hardened Kubernetes. If you decide to install OpenShift you need to use either. Global Availability: All three providers have their offering available in most regions globally. Kubernetes is available on three of them - GKE on Google GCP, EKS on Amazon AWS anf AKS on Microsoft Azure. Google Kubernetes Engine vs OpenShift: What are the differences? However, with more operators available on OperatorHub, OpenShift 4 will gain an advantage. Better ops - Give ops a better system, starting with a managed compute cluster. Google Kubernetes Engine (GKE) ... OpenShift Online is a public cloud service, while OpenShift Dedicated is a fully managed solution hosted on a private cluster. In fact, you can perform about 80% (or even 90% in OpenShift 4) of tasks directly from it - no need to launch command line or dealing with yaml objects - it can be actually a primary tool for managing OpenShift on a daily basis. Then, one must learn more about each and every feature and working architecture of container orchestration tools. On Kubernetes however you can use different enhancements - my favorite one is an integration with cert-manager that allows you to automate management of SSL certificates. Kubernetes uses labels which are key-value pairs that are attached to objects, usually pods. The Kubernetes Project vs an OpenShift Product. OpenShift is a containerization solution developed by Red Hat. configurable chargeback, monitoring, central provisioning etc. OpenShift has a similar object called DeploymentConfig implemented not by controllers, but rather by sophisticated logic based on dedicated pods controlling whole process. Tags: Google Kubernetes Engine can be classified as a tool in the "Containers as a Service" category, while OpenShift is grouped under "Platform as a Service". So whichever you choose you’ll get tons of features making your life easier and your journey will begin towards cloud native world. Kubernetes is accessible on three of them – GKE on Google GCP, EKS on Amazon AWS, and AKS on Microsoft Azure. The users need to renew the subscriptions for their cluster, and the amount increases with the expansion of … Kubernetes Vs. OpenShift: The Verdict. OpenShift 4 includes pretty fast installer (7 node cluster in 50 min on GCP) based on Terraform vs self-provisioning in GKE I'd appreciate if anyone familiar with this subject could correct me if my calculations were wrong or if I forgot to mention any additional added value that OpenShift can bring to justify an additional $24K/yr. OpenShift is an application platform in the cloud where application developers and teams can build, test, deploy, and run their applications. It’s probably because of the target group for OpenShift product, but indeed default policies are more strict there than on Kubernetes. It’s a nifty feature that is hard to implement with Deployment (and no, InitContainers are not the same, as it’s hard to coordinate it with many instances running). ), OKD version is free to use and includes most of the features of its commercial product, but you cannot buy a support nor you cannot use Red Hat based official images, Red Hat Enterprise Linux (RHEL) or Red Hat Atomic on OpenShift 3, Red Hat CoreOS (required by control plane - master and infra server, default for compute nodes) and optionally RHEL for compute nodes only on OpenShift 4, OpenShift 3 - manually following reference guides (yes, you need to install it using ssh, yum, vim and other old-school tools) or with, OpenShift 4 - has a simplified and easier to use installer that currently supports AWS and vSphere. Both Kubernetes and OpenShift are popular container management systems, and each has its unique features and benefits. However, with the new, more flexible and faster installer we can expect that OpenShift will be a good alternative for Kubernetes, also in the cloud. I think you didn't get the idea of Requests vs Limits, I would recommend you take a look on the docs before you take that decision.. On the other hand, OpenShift is detailed as "Red Hat's free Platform as a Service (PaaS) for hosting Java, PHP, Ruby, Python, Node.js, and Perl apps". But let’s forget about names for a while and focus on what are implications of that. Let’s start with cli. It will become eventually the best way to deploy services on OpenShift (and Kubernetes too). Developers describe Google Kubernetes Engine as "Deploy, manage, and scale containerized applications on Kubernetes, powered by Google Cloud". and use Jekins in a fully, synchronization of secret object from a namespace it’s running on - different secrets are synchronized with Jenkins credentials so that username/password, ssh key or secret text are available in your jobs without ever creating them in Jenkins, last but not least - pipeline definition is a separate. Out of the box containers don’t run as root, and they have locked down every interface with auth. In this article, I’m describing real differences between OpenShift and Kubernetes. Kubernetes is an open source, container as a service (CaaS) project originating from Google. Kubernetes and Docker are supported by public clouds including Google Cloud, EKA on AWS and AKS on Azure. So if you need a support for Kubernetes one option would be to buy subscription for OpenShift. OpenShift includes Kubernetes, and more… What is Kubernetes? Kubernetes as a Service: GKE vs. AKS vs. EKS. That’s why I find OpenShift versions of both command line and web interfaces superior over Kubernetes ones. While searching for OpenShift vs Kubernetes, one of the major differences is that one is a product, and another is a project. Helm is so much better, but its current architecture (Tiller component installed as Pod with huge permissions) isn’t compatible with more strict security polices in OpenShift. Since it’s so popular then having it as a builtin part of OpenShift makes the whole CI/CD a lot less painful. The master uses the information from node objects to validate nodes with health checks. When you’re starting learning and using Kubernetes for the first time you discover that there is this specia... How to modify containers without rebuilding their image, The challenges of multi-cloud environments, Why Vault and Kubernetes is the perfect couple, You need to renew your OpenShift subscription for your cluster and you pay more when your cluster grows, Kubernetes has many distributions, but it’s a project and if something bad happens you can count mostly on community or external experts (in some cases they might be sometimes better than Red Hat support :-) ), Kubernetes has many releases per year (4 actually), OpenShift has also many releases, but it falls behind Kubernetes release schedule - version, As a product OpenShift subscription includes CloudForms (only in version 3) that enhance it with its features (e.g. Similarly like with Ingress, OpenShift chose to have a different way of managing deployments. Available on GKE on Google GCP, EKS on Amazon AWS and AKS on Microsoft Azure: Red Hat offers OpenShift Online and OpenShift Dedicated as multi- and single-tenant managed offerings on AWS. Red Hat OpenShift is a hybrid cloud, enterprise Kubernetes platform. Container management platforms such as Kubernetes and OpenShift may be well-known, though possibly not as well understood. That’s okay for a small dev/test setup, but in real life, you want to have some level of permissions - even if it’s sometimes hard to learn and comprehend (because it is at first). It’s often confusing, as Red Hat tends to describe it as PaaS, sometimes hiding the fact that Kubernetes is an integral part of OpenShift with more features built around it. support for source-to-image that allows you to create a custom jenkins image - a few files with plugins list, custom configuration and other resources, enable you to easily update it when a source image changes (that part also can be automated!) The (not so) secret flaws of Kubernetes Secrets Kubernetes interacts with node objects that are a representation of those nodes. Docker Swarm vs Kubernetes vs OpenShift . OpenShift. Also, RBAC was an integral part of OpenShift since many releases while there are some people who use Kubernetes without RBAC security. Before you get stuck in an indecisive limbo, read this post to find out. A good example would be network policies that close your project for external traffic so that is isolated and secure by default - if you want to permit some kind of traffic you would do so by creating additional policies explicitly. When this all IT revolution began, we started with one computer that was the size of a room, then we invented server rooms, we started dividing servers into ... Kubectl is the new ssh Multi-cloud Enablement. Now this is something that I really miss in Kubernetes and personally my favourite feature of OpenShift. UPDATED on 30.8.2019: Added information on CodeReady Containers for running single OpenShift node.. If you’re interested in OpenShift 4 please check out also my honest review of it. There’s an open source version of OpenShift which is called OKD. That makes permissions management easier and can bring additional features like in EFK where you see logs only from namespaces/projects you have access to. In OpenShift you actually don’t have a choice and you have to use it and learn it on the way as you deploy more and more apps on it. OpenShift is an open source tool with 913 GitHub stars and 561 GitHub forks. Built-in support for Node.js, Ruby, Python, PHP, Perl, and Java (the standard in today's Enterprise). Containers are a beautiful piece of technology that ease the development of modern applications and also the maintenance of modern environments. UPDATED on 30.8.2019: Added information on CodeReady Containers for running single OpenShift node. It depends on whether you’d rather pay and use support and all the features that come with a product (OpenShift) rather than project (Kubernetes, but also OKD) with self-support model. Summarizing K8s vs OpenShift Both Kubernetes and OpenShift are excellent options for large-scale deployment of containerized applications. In a brief explanation, Request is how much resource will be virtually allocated to the container, it is a guarantee that you can use it when you need, does not mean it keeps reserved exclusively to the container. For example, most of container images available on Docker Hub won’t run on OpenShift, as it forbids to run a container as root and even many of official images don’t meet this requirement. OpenShift is Red Hat's Cloud Computing Platform as a Service (PaaS) offering. Red Hat ® OpenShift ® is more than just Kubernetes. Heads up! OpenShift is on its second incarnation after the previous version was reinvented by putting Kubernetes at the core. you would probably be discouraged as I did when I saw it for the first time (it was a couple of years ago, but it hasn’t changed a lot unfortunately). OpenShift vs Kubernetes Oct 15 2018. For hesitant ones there’s a OKD project with almost all OpenShift features - you can later might decide to migrate to a commercial product or stick with OKD. We've seen everything from Clojure to Cobol running on OpenShift. This a minor difference, but on OpenShift there are projects which are nothing more than just Kubernetes namespaces with additional features. No more manual actions for issuing and renewal of certificates and additionally you can use trusted CA for free thanks to integration with Letsencrypt! Personally, I think HAproxy in OpenShift is much more mature, although doesn’t have as much features as some Ingress implementations. You are comparing apples to oranges. 10 most important differences between OpenShift and Kubernetes 16 minute read UPDATED on 10.6.2019 (after the release of OpenShift 4.1): Added information on OpenShift 4.. love and need fancy web console :-). Sorry Kubernetes, but people (including me!) So, I hope this article will give you the basic knowledge and comparative knowledge of the above tools. However, maintaining the service can be difficult and expensive. Should you go with OpenShift or Kubernetes? Let’s face it - dashboard is not a first-class citizen among many Kubernetes projects. Red Hat had needed an automated reverse proxy solution for containers running on OpenShift long before Kubernetes came up with Ingress. That’s why I love ImageStreams and here are main reasons and features: If you’re interested in more details you might want to check my article. Conclusion. OpenShift has available as a dedicated, online platform and on Azure. The main difference is that routes are implemented by good, old HAproxy that can be replaced by commercial solution based on F5 BIG-IP. Container Engine takes care of provisioning and maintaining the underlying virtual machine cluster, scaling your application, and operational logistics like logging, monitoring, and health management. To better understand what OpenShift is and how it differs from Kubernetes, we first need to understand what Kubernetes is.. We often see what the classic Kubernetes suite can do. and you use a single account to authenticate to them with OAuth mechanism (oauth-proxies running as sidecars). 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. When it comes to installation when choosing OpenShift you can install it on multiple platforms depending on the version: Kubernetes on the other hand has many installation tools available (e.g. How the benefits of OpenShift … Here is a related, more direct comparison: Google App Engine vs Google Kubernetes Engine, Good balance between Heroku and AWS for flexibility, Free, Easy Setup, Lot of Gear or D.I.Y Gear, Overly complicated and over engineered in majority of e, This is the only free one among the three as of today, Decisions are made for you, limiting your options, Behind, sometimes severely, the upstreams, Cloud Foundry vs Heroku vs Red Hat OpenShift, Google App Engine vs Heroku vs Red Hat OpenShift, AWS Elastic Beanstalk vs Heroku vs Red Hat OpenShift, Clever Cloud vs Heroku vs Red Hat OpenShift. Security & Authentication You cannot install it on other linux distributions. And after you saw this. Labels are used to identify objects or groups of objects according to different characteristics that they may have, for example they can be used to identify all the pods that are included in the backend tier. That’s why people are sometimes confused and angry because they cannot run simple apps like they used to on Kubernetes. It is performed by a dedicated Operator software and the whole configuration is kept in ConfigMaps inside a cluster (not in files on master servers like in version 3). Choosing a Container Orchestration tool totally depends on the requirement. Both are great, Ingress is newer and less mature than Router, but they do a great job. Openshift vs Tectonic vs Vanilla Kubernetes Vendor Comparison. While OpenShift is a popular product, Kubernetes is a framework or an open-source project. It’s a result and implication of acquisition of CoreOS by Red Hat announced at the beginning of 2018. Without external tools such as skopeo you need to download the whole image, change it locally and push it back. First of all it has a login window, something that simple and trivial and I know it shouldn’t be a feature, but have you seen Kubernetes “login window”? So which one is better you may ask? Container Engine takes care of provisioning and maintaining the underlying virtual machines and operational logistics like logging, monitoring, and health management. Until then when working on OpenShift you need to live somehow with those inflexible templates looking with envy on those fancy Helm charts. Because OpenShift natively integrates Google technology such as GKE, your apps are built and deployed on the same infrastructure and orchestrations as apps, such as YouTube, Google Drive, and more. OpenShift supports frameworks ranging from Spring, to Rails, to Play. Kubernetes is an open source project (or even a framework), while OpenShift is a product that comes in many variants. GKE, EKS, and AKS have 1.14 as their regular stable release, though GKE has “rapid” stream that runs 1.15. articles. Red Hat and Microsoft jointly support an additional managed cloud offering, Microsoft Azure Red Hat OpenShift. We even got version 4.1 directly because Red Hat decided not to release version 4.0. UPDATED on 10.6.2019 (after the release of OpenShift 4.1): Added information on OpenShift 4. Deployment, however, is better when dealing with multiple, concurrent updates - DeploymentConfig doesn’t support concurrent updates at all and in Kubernetes you can have many of them and it will manage to scale them properly. Dashboard has a login window where you provide a token and honestly is confusing, especially for beginners. They are used to specify the characteristics of an object like the version, tier, etc. ImageStreams for managing container images. Currently a few roles (RoleBinding objects to be precise) are created alongside with a project, but you can modify default project template and use it to provision other objects. Docker support - Improve the predictability of your deployments with Docker containers. So now in OpenShift we have a Route objects which do almost the same job as Ingress in Kubernetes. In OpenShift v2, applications were required to have at least one web framework with one git repo. Helm charts use sophisticated templates and package versioning that OpenShift templates are missing. Learn more. Kubernetes (K8s) is a prevalent open-source system for automating the deployment, scaling, and management of containerized applications. OpenShift has been often called as “Enterprise Kubernetes” by its vendor - Red Hat. Red Hat created OpenShift long before Kubernetes project was found and from the start, it was a PaaS platform. Red Hat is among the top contributors to Kubernetes project. There’s an easy way to disable that policy, but still it shows a different approach to security. If you’re interested in OpenShift 4 please check out also my honest review of it. We know that it can efficiently deploy applications through the use of Deployments, ReplicaSet, Pods, containers and so on. Declarative management - Use declarative syntax to define your application requirements. Previously it was called OpenShift Origin, but some “clever” folks at Red Hat came up with this new name which supposes to mean “The Origin Community Distribution of Kubernetes that powers Red Hat OpenShift” (?). In a similar way you could provide default quotas or LimitRange objects and make your new projects pre-configured according to your organization rules. Evan Klein. Besides trivial things such as description and display name (trust me - they can be helpful when you have dozens of them), projects add some default objects.