OpenShift in Azure
OpenShift is an open and extensible container application platform that brings Docker and Kubernetes to the enterprise.
OpenShift includes Kubernetes for container orchestration and management. It adds developer-centric and operations-centric tools that enable:
- Rapid application development.
- Easy deployment and scaling.
- Long-term lifecycle maintenance for teams and applications.
There are multiple versions of OpenShift available:
- OpenShift Container Platform
- OpenShift On Azure (fully managed OpenShift coming around the end of Q1 CY2019)
- OKD (Formerly OpenShift Origin)
- OpenShift Dedicated
- OpenShift Online
Of the five versions covered in this article, only two are available today for customers to deploy in Azure: OpenShift Container Platform and OKD.
OpenShift Container Platform
Container Platform is an enterprise-ready commercial version from and supported by Red Hat. With this version, customers purchase the necessary entitlements for OpenShift Container Platform and are responsible for installation and management of the entire infrastructure.
Because customers "own" the entire platform, they can install it in their on-premises datacenter, or in a public cloud (such as Azure).
OpenShift On Azure
OpenShift On Azure is a fully managed offering of OpenShift running in Azure. This service is jointly managed and supported by Microsoft and Red Hat. The cluster will deploy into the customer's Azure subscription. The service is currently in Private Preview and is scheduled to be GA around the end of Q1 CY2019. For customers interested in participating in the Private Preview, please fill out the Nomination Form. More information will be provided as the offering gets closer to GA.
OKD (Formerly OpenShift Origin)
OKD is an open-source upstream project of OpenShift that's community supported. OKD can be installed on CentOS or Red Hat Enterprise Linux (RHEL).
Dedicated is a Red Hat-managed single-tenant OpenShift that uses OpenShift Container Platform. Red Hat manages all of the underlying infrastructure (VMs, OpenShift cluster, networking, storage, etc.). The cluster is specific to one customer and runs in a public cloud (such as Azure). A starting cluster includes four application nodes and all costs are annual and paid upfront.
Online is a Red Hat-managed multi-tenant OpenShift that uses Container Platform. Red Hat manages all of the underlying infrastructure (such as VMs, OpenShift cluster, networking, and storage).
With this version, the customer deploys containers but has no control over which hosts the containers run. Because Online is multi-tenant, containers may be located on the same VM hosts as containers from other customers. Cost is per container.
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