OpenShift vs Docker
Red Hat’s OpenShift Dedicated offers a managed private cluster solution built on a foundation of Red Hat Enterprise Linux, with application container layers powered by Docker and Kubernetes orchestration and management.
What is OpenShift ?
OpenShift is the cloud platform as a service (PaaS) developed by Red Hat. It is an open-source development platform that allows developers to easily build and deploy applications online. It facilitates the creation of cloud-enabled services.These examples and code snippets are all tested and working code, which can be easily used in any OpenShift setup simply by changing the current defined variables and names.
With the OpenShift cloud migration platform, organizations can migrate physical or virtual applications infrastructures to the cloud.
Developers can quickly build and deploy a variety of applications using OpenShift. OpenShift offers three types of platforms to developers and users.
Containers accessed through cartridges can also be used to access functionality units, which are shell scripts called automatically when an invocation of the system is made. The API defines communications between a broker, also known as a coordinator, and the nodes (servers that host multiple tenant containers), which call the container’s endpoints.
What is Docker ?
The container as a service (CaaS) is a technology that allows for the creation and seamless integration of legacy applications, allowing organizations to achieve high-velocity development.
It promotes DevOps methodology through continuous integration and continuous development (CI/CD) techniques.
In this way, the development setup behaves just like a live server. It has integrated developer tools. The virtual machine image is also publicly accessible and shareable. This platform allows the development of reusable and shareable applications. There is an open-source version on Github.
The OpenShift and Docker platforms can be used together to provide an end-to-end customer application workflow.
The fact that OpenShift is PaaS (Platform as a Service) means it can be used over an existing cloud service that is deployed on the Docker Enterprise platform, which is CaaS (Container as a Service).
The existing workflow will also be scalable as a result. The technologies can also be used independently as both are an integral part of the cloud platform.
Key differences between OpenShift vs Docker
Tech Stack Category -
The OpenShift platform is part of the PaaS (Platform as a Service) category, while Docker belongs to the Containers and Platforms category of the technology stack.
Container Orchestrating Platforms-
OpenShift makes use of Kubernetes internally for its Container Orchestration, while Docker makes use of Docker swarms.
File Storage and Transfer-
Docker lets us copy disks and files onto multiple devices as well as share them via AUFS. On the other hand, OpenShift does not require this and is incompatible with these systems as well.
Functional Units-
OpenShift models functional units in the form of cartridges, which represent hooks written in shell scripts that are called when the system calls are invoked. Docker achieves similar results using Docker images. However, behind the scenes, quite a few things must be done manually. Docker lets us copy disks and files onto multiple devices as well as share them via AUFS. On the other hand, OpenShift does not require this and is incompatible with these systems as well.
Container -
OpenShift models functional units in the form of cartridges, which represent hooks written in shell scripts that are called when the system calls are invoked. Both OpenShift and Docker are utilizing part segregation highlights for keeping the occupant forms partitioned in runtime holders .Docker lets us copy disks and files onto multiple devices as well as share them via AUFS.
Conclusion
OpenShift and Docker, both open-source, go hand in hand with each other or can be used independently. Both techniques are common and widely used all over the world. With the pros and cons of both techniques, the organization can choose any of them following its requirements.
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