OpenShift

Application modernization and digital transformation? Yes, with containers and without bothering with infrastructure.

The Red Hat OpenShift Container Platform helps organizations develop, deploy, and manage applications across containers, from their own data center to Azure or AWS cloud.

Built on proven open source technologies, the Red Hat OpenShift container platform helps application development teams and IT operations work together to update applications, provide new services, and accelerate development processes.

Why choose OpenShift?

• The Red Hat OpenShift container platform allows organizations to quickly build, develop, and deploy applications to almost any infrastructure, public or private cloud, regardless of the architecture used.
• Developers can quickly and easily build applications on demand using the tools they use most often, while IT operations have complete control over the entire environment.
• It accelerates application development and helps IT operations teams update applications.
• Facilitated and automated application building, deployment, scaling, and health management are standard features of the OpenShift container platform.
• Applications developed on the OpenShift container platform can be easily launched in any environment that supports containers.
• Developers can easily use different programming languages, frameworks, and databases on the same platform.
• Users can run applications on physical, virtual, public, private, or hybrid cloud infrastructures.

The ability to innovate is a critical factor in today’s competitive market environment. Speed up application delivery by using containers!

The difference between Kubernetes and OpenShift

The main difference between OpenShift and vanilla Kubernetes is the concept of construction-related artifacts. In OpenShift, such artifacts are considered first-class Kubernets resources to which standard Kubernets operations can be applied. The OpenShift client program, known as “oc”, offers a superset of standard features packaged in the main kubernets client program “kubectl”. Using this client can communicate directly with construction-related resources using sub-commands (such as “new build” or “start construction”). In addition, OpenShift is a source technology for making pods called Source-to-Image (S2I). For the OpenShift platform, this provides opportunities equal to what Jenkins can do.

Some other differences when OpenShift is compared to Kubernetes:

• The V4 product line uses CRI-O runtime – meaning that dock daemons are not present on the main or work node. This improves the security of the cluster.
• The finished installation of OpenShift comes with an image repository.
• ImageStreams (a sequence of pointers to images that can be associated with implementations) and Templates (an application component packaging mechanism) are unique to OpenShift and simplify application implementation and management.
• The “new-app” command that can be used to start an application implementation automatically applies the application tag (with the tag value taken from the –name argument) to all resources created as a result of the implementation. This can simplify application resource management.
• In terms of platforms, OpenShift was once limited to Redhat’s own offerings, but now supports others like AWS, IBM Cloud and vSphere with OpenShift 4.
• OpenShift’s implementation of Deployment, called DeploymentConfig, is based on logic compared to Kubernets controller-based Deployment objects. Since v4.5, OpenShift is more geared towards Deployment by changing the default behavior of its CLI.

OpenShift has introduced the concept of routes – points of entry of traffic into the Kubernetes cluster. The concept of Kubernets entry is shaped accordingly.

OpenShift also provides value by adding a variety of software solutions – application execution as well as infrastructure components from the Kubernetes ecosystem. For example, for visibility purposes, Prometheus, Hawkular, and Istio (and their dependencies) are included in the framework. The console’s user interface includes an “Operator Hub” that serves as a marketplace from which publicly secured operator-based solutions can be downloaded and implemented.