Docker vs Kubernetes vs OpenShift A Detailed Comparison

IBM offers both Kubernetes and OpenShift as distinct services with IBM Cloud. Inside the container, OpenShift models units of functionality via “cartridges”, which are a set of shell script hooks that are called when the system is invoked. She has written about a range of different topics on various technologies, which include, Splunk, Tensorflow, Selenium, and CEH. She spends most of her time researching on technology, and startups. Due to the fact that they are both open-source, OpenShift and Docker complement one another or can be utilized separately.

Red Hat designed OpenShift as an enterprise-grade, open-source container orchestration platform. To meet that grade, OpenShift packs additional security, productivity, and hybrid cloud features. Besides built-in monitoring and enterprise-level security, the platform also offers a self-service provisioning interface.

There is also an easy-to-install package, Docker Desktop, for Mac and Windows. Docker Desktop simplifies the setup via a graphical user interface. Other Docker-derived technologies, such as Docker Compose, are also included. Docker Swarm, a mode that allows container clusters to be orchestrated across multiple hosts. Manage large numbers of containers across computing clusters and scale them as needed. In fact, OpenShift used to be indirectly based on Docker and still uses the Docker container format today.

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You can find a detailed comparison table in this guide about OpenShift, Kubernetes, and Platform9. The underlying open-source components are developed as part of the ‘Moby’ project. On the basis of OpenShift, company-owned Platform-as-a-Service , Software-as-a-Service , and Containers-as-a-Service can be implemented. OpenShift is definitely too big and too difficult to handle for individual developers.

  • Openshift is an enterprise solution by redhat that builds on kubernetes.
  • Application or software development is one of the prominent sectors which receive the influence of emerging technologies.
  • Yet, in either case, there is a large support and networking community to help you out.
  • This means that you can use your OpenShift clusters to construct container images and carry out continuous integration tasks on them.
  • She spends most of her time researching on technology, and startups.
  • Swarm is primarily geared towards users who already know how to use Docker Compose.

OpenShift only runs on special operating systems from Red Hat, such as “Red Hat Enterprise Linux CoreOS” and “Red Hat Enterprise Linux” . The core K8s functionality is complemented by security and monitoring features and is based on centralized policy management. This ensures a high quality across the software landscape of an entire organization. This inherent advantage of container virtualization led to the proliferation of distributed microservice architectures. Docker popularized container virtualization and largely displaced previously dominant virtual machines . Application containers have revolutionized how applications are built, packaged, and run because containers are a standardized software entity.

The transformations in the technical field tend to simplify legacy processes in almost every aspect. Application or software development is one of the prominent sectors which receive the influence of emerging technologies. Containerization is probably the most interesting intervention in recent times. Linux containers and virtual machines are packaged computing environments that combine various IT components and isolate them from the rest of the system.

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Support for deployment with one click, empowering users to deploy applications with a simple “Git push” command. A DevOps environment well-equipped to assist the overall deployment team, including developers and testers. Docker runs multiple containers openshift vs docker on a single operating system by implementing resource isolation in the kernel. This differs from a virtual machine system, which involves encapsulating the entire operating system with executable code on top of the hardware resource layer.

Docker is powered by the Go programming language and it leverages various Linux kernel features to deliver its services. When we compare Docker vs Kubernetes vs OpenShift, Kubernetes is the largest and most flexible among all. For instance, it can support over 5,000 nodes compared to 1000 nodes of Docker Swarm. With 30 containers for each node make the total containers count for Kubernetes is 0.3 Million compared to 30 thousand containers in Docker Swarm.

By default, OpenShift provides superior security features, hybrid/multi-cloud capabilities, dedicated customer support, and an easy-to-use web console for login. However, it requires investment in its infrastructure, including plugins and support services. Despite this, Kubernetes is not a stand-alone container management solution since it requires different plugins and services to function. Vagrant provides the framework and configuration format to create and manage complete portable development environments. These development environments can live on your computer or in the cloud, and are portable between Windows, Mac OS X, and Linux. You can upgrade existing Kubernetes clusters instead of rebuilding them from scratch on both platforms.

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Docker offers tons of helpful guides and documentation to fall back on or help you contribute to the open source software. Docker’s isolation, reproducibility, and testability processes give you greater operational control, while OpenShift’s guided approach is a little restrictive. In some cases, you may have to resort to using external wrappers to make it more pliable and helpful when working with complex deployment scenarios. Since Docker is a widely used platform, you can always count on finding tons of useful resources to help you resolve any issues you encounter along the way.

Additionally, Docker has a devoted and enthusiastic community and expert support, making it straightforward to discover answers to various issues. The best option for lone developers is Docker, because its services are offered in both free and economical options. Numerous colleges and universities use the virtual learning services offered by Wiley Education Services .

openshift vs docker

Finally, Docker offers a Large plan for big organizations that require more advanced solutions and expansive features. You’ll need to get in touch with the company’s sales department to get a custom price based on your organization’s needs under this plan. The free plan costs absolutely nothing to use and gives you access to Docker Desktop, unlimited public repositories, and two-factor authentication.

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The integrated tools simplify modern development and deployment workflows. The OpenShift Container Platform offers an integrated development environment that allows developers to build and deploy containers in the Docker format. It manages containers using the Kubernetes container orchestration platform. Docker Desktop is a commonly used tool to build container images and run them locally. But oftentimes, you need to deploy your apps on an environment other than your localhost.

openshift vs docker

Around 70% of organizations are gearing up to adopt container-based development models as containers are the emerging miracle of this decade in the tech world. A recent survey concluded that many organizations are considering shifting towards container technology to address their foremost challenges. Use-case applications for both container orchestration options merit a more focused look at the type of industry for which each one better serves. Kubernetes deployment and Kubernetes distribution for software applications enables businesses to create, test and deploy applications more efficiently. On the whole, both Kubernetes and OpenShift provide a high-functioning continuous integration and continuous delivery (CI/CD) process.


Additionally, it has native routes set up for Red Hat Enterprise Linux, Fedora, Red Hat Atomic Host, and CentOS containers to direct public traffic. However, it restricts the deployment options for businesses that don’t use these platforms. In small- to medium-sized deployments (and large-scale deployments when deployed with Kubernetes), Docker makes lightweight container images easy to build, deploy, and manage.

Comparing Docker and Kubernetes

In Kubernetes, kubectl, a powerful API and command-line tool, automates the bulk of container management tasks. OpenShift also provides premium support, a user-friendly login portal, and supports multiple programming languages (Go, Node.js, Java, Ruby, Python, and PHP). As an example, Kubernetes is sometimes referred to as an all-in-one containerization platform. This guide compares the differences between Kubernetes, Docker, and OpenShift so you can decide which container platform best suits your needs. Containers empower organizations to reduce engineering costs, speed up deployments, develop and test Artificial Intelligence models, and automate more tasks. We compare Kubernetes, Docker, and Openshift, to help you choose the best container management platform for your needs.

Swarm mode makes it possible for Docker Engine to incorporate Docker Swarm’s orchestration features. OpenShift can be deployed across cloud and infrastructure borders and is utilized as a platform-as-a-service . OpenShift also reduces the operational complexity of managing self-managed Kubernetes clusters. Developers can make project resource requests via a web interface using the PaaS methodology, and CI/CD approaches and workflows significantly shorten delivery times.

For new businesses, particularly for smaller enterprise businesses, OpenShift may be more attractive for its increased support, including easier deployment of CI/CD clusters. Now that you have a sense of how cluster container orchestration works, you can better understand Kubernetes’ features and what Kubernetes offers for your business. The situation right now is a little more complicated than when the question was originally asked. Default security procedures are incorporated into the layout of Docker containers. Additionally, it offers a range of options for hardening Docker hosts to reduce the severity and risk of container breakouts.

Simplified local container image deployment to remote OpenShift environments

Lenovo used OpenShift to simplify, which improved overall automation and DevOps collaboration for increased productivity. 46% of firms polled ranked container-based apps as their top software development priority for the coming year, according to a Red Hat analysis published in 2021. However, Docker is the stronger option for building, managing, and deploying containerized apps. It’s a much easier tool to use, with faster and more consistent build processes.

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