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Difference Between Kubernetes and OpenShift

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Containerization is the process of packaging software code along with all of its necessary dependencies, including libraries, frameworks, and other dependencies, into a single, isolated “container.” The purpose of this is to enable consistent movement and operation of the program or application within the container in any environment and on any infrastructure, regardless of the operating system used by those environments or infrastructures.

What is Kubernetes?

Kubernetes is an open-source Container-as-a-Service (CaaS) framework initially created by Google. It is an open-source, portable containerization system that lets developers automate the deployment, scaling, management, and networking of containers. It groups the containers into logical clusters for easy discovery and management.

It is capable of running in both cloud and on-premise systems, as well as hybrid clouds. Kubernetes is used by Developers to introduce various features like process automation, load balancing, and storage orchestration into their CI/CD pipelines.

Key Features of Kubernetes

  • It manages batches and CI(Continuous Integration) workloads and enables users to automatically or manually scale the applications.
  • It has the functionality of self-recovery as it restarts the failed containers, and replaces and removes containers failing health checks.
  • In Kubernetes, the service discovery and load-balancing services assign DNS names, IP addresses, and load-balances to pods automatically.

Kubernetes Architecture

Kubernetes architecture is composed of a number of components, each of which plays a specific role in the overall system. These components can be divided into two categories:

  • nodes: Each Kubernetes cluster requires at least one worker node, which is a collection of worker machines that make up the nodes where our container will be deployed.
  • Control plane: The worker nodes and any pods contained within them will be under the control plane.

Typical Use Cases for Kubernetes

1. Microservices Architecture

Kubernetes is mainly suitable for microservice applications. Each service in the application is responsible for a specific service. Each service in the application will contact each of them by using the HTTP REST APIs or message queues.

2. Containerized Applications

Kubernetes is an container orchestration platform which is ideal for the applications which needs to be containerized. Kubernetes will helps to maintain the availability of the application by scaling the containers.

3. Scalable Web Applications

Kuberneets have an an service called as Horizontal Pob Autoscaling which will scale the application container by depending on the incoming traffic. It will scale automatically and dynamically based on the incoming traffic.

4. Continuous Integration/Continuous Deployment (CI/CD)

You can integrate the kubernetes with the Continuous Integration/Continuous Deployment (CI/CD) tools which will automate the deployment of the applications.

What Is OpenShift?

OpenShift is a cloud development Platform-as-a-Service (PaaS) developed by open-source provider Red Hat. The main concept used behind OpenShift is Virtualization. The developers of OpenShift consider Kubernetes as the Kernel of its distributed platform whereas OpenShift is the distribution. It also enables the manual scaling of containerized applications.

OpenShift Container Platform is generally offered in the cloud. It has support for Node.js, Python, Ruby, Perl, Go, and Java-based applications.

Key Features of OpenShift

  • Kubernetes’ operators help in the management of applications and make the job more efficient as it allows the code to interact with the Kubernetes system.
  • One of the most important features of OpenShift is cluster installation and further upgrades.
  • The Knative feature helps in creating Faas ( Function-as-a-Service) workloads.

OpenShift Architecture

Openshift is an container orchestration platform which is developed by the redhat which is build on kubernetes following are some of the main components of openshift.

Nodes

  • Master node: Master node is also called an control plan which manages the all the worker nodes in the cluster.
  • Worker node: In the worker nodes the containers of the application will run.

Typical Use Cases for OpenShift

1. Enterprise Container Orchestration

Openshift is used for the managing the containerized application in the secured manner. You can scale the containerized applications depending on the incoming traffic.

2. Microservices Architecture

Microservices Architecture is mainly sutabile for the microservice applications. Each service in the application is responsible for a specific service. Each service in the application will contact with the each of them by using the HTTP REST APIs or message queues.

3. Hybrid and Multi-Cloud Deployments

Openshift can be deployed on the multi-cloud environments which will increases the agility and cost optimization.

4. Edge Computing

Openshift allows deploying the containers in the edge locations by which you can decrease the latency of the application to the end users which will increase in the performance of the applications.

Choosing Between Kubernetes and OpenShift

Kubernetes and OpenShiftb are most widely used container orchestration tool with there unique features and services. kubernetes can helps in the deployment of the application by integrates with the CI/CD application and also can scale the application dynamically depending on the incoming traffic. On the other hand Openshift which is used for containerization of applications with the help of kubernets underneath which helps applications run more efficiently.

Kubernetes is an open-source which has a wide range of community and it is adopted by various vendors. Openshift is an enterprise edition with kubernets underlying so it provide additional enterprise features and support.

OpenShift vs Kubernetes

 Parameters

                   Kubernetes   

                            OpenShift   

Platform Support

Linux distributions such as Ubuntu, Debian, and others.

RHEL(Red Hat Enterprise Linux), CentOS, and Red Hat CoreOS.

Integrated CI/CD Support

It doesn’t provide inbuilt CI/CD and to construct CI/CD pipelines some third-party tool is required.

It also does not provide built-in CI/CD integration but is easier to construct CI/CD pipelines as it offers Jenkins containers.

Security

It provides less lenient security compared to OpenShift.

It offers more strict security policies than Kubernetes.

Type of Product

It is an open-source product.

OpenShift is a commercial product, unlike Kubernetes.

Object provided

Kubernetes provides Ingress which provides more functionality than Router.

OpenShift provides a Router object which is more stable than Ingress.

Integrated Image Registry

It does not have a built-in or integrated image registry.

It has a built-in image registry.

FAQs On Kubernetes and OpenShift

1. Is Kubernetes and Openshift Same

No, kubernets and openshift are not same kubernetes if an open-source container orchestration platform and openshift is an commercial distribution of kubernetes which is developed by the red hat.

2. Docker, Kubernets and Openshift

Docker, Kubernets and Openshift this three are different key terminologies in same containerization ecosystem.Each has there own roles and responsibilities like deployment, management, and orchestration of containerized applications.

3. Kubernets vs Docker Swarm vs OpenShift

You can deploy, manage, and scale containerized applications with the aid of container orchestration platforms like Kubernetes, Docker Swarm, and OpenShift. Each has advantages and disadvantages of their own, so it’s critical to select the best one for your requirements.



Last Updated : 01 Dec, 2023
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