OKD (previously known as OpenShift Origin) is a Platform as a Service (PaaS) computing platform as a service product from Red Hat. It is an application platform where application developers and teams can build, test, deploy, and run their applications. OKD takes care of infrastructure, middleware, and management so that developers can focus on their app.
OKD enables you to create, deploy and manage applications within the cloud. It provides disk space, CPU resources, memory, network connectivity, and an Apache or JBoss server. Depending on the type of application being deployed, a template file system layout is provided (for example, PHP, Python, and Ruby/Rails). OKD also generates a limited DNS so your application is accessible online.
It provides support for a wide variety of language runtimes and data layers including Java EE6, Ruby, PHP, Python, Perl, MongoDB, MySQL, and PostgreSQL.
OKD is the open sourced, community supported version of OpenShift.
- Broker – the single point of contact for all application management activities. It is responsible for managing user logins, DNS, application state, and general orchestration of the application. User interaction with the broker is performed using the web management console, command line interface tools, or a REST-based API.
- Cartridges provide the actual functionality necessary to run the user application. Cartridges provide fundamental features on OpenShift such as language runtimes and data layers. OpenShift has many language cartridges (JBoss, PHP, Ruby, Rails, etc.) as well as many DB cartridges (PostgreSQL, MySQL, Mongo, etc).
- Gears provide a resource-constrained container where you can run one or more cartridges:
- Two gear sizes.
- Nodes enable resource sharing so that multiple gears can run on a single physical or virtual machine.
- Add new runtimes and frameworks to OpenShift with community cartridges and quickstarts.
- Quickstarts are codebases built specifically to run on OpenShift with one or more specific cartridges.
- Graphical management console accessed with a web browser designed for the following tasks:
- Account administration and management.
- Launch new applications.
- Manage and monitor applications.
- OpenShift Online client tools are used to interact and manage a user’s own OpenShift Origin PASS or RedHat’s OpenShift PAAS using a command line interface, and provide features that are not currently available from the management console:
- Advanced application management.
- Supported frameworks:
- Rack for Ruby.
- WSGI for Python.
- PSGI for Perl.
- Supported databases:
- Supported languages:
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