Welcome to the OKD Latest documentation, where you can find information to help you learn about OKD and start exploring its features.

To navigate the OKD Latest documentation, you can either

  • Use the left navigation bar to browse the documentation or

  • Select the activity that interests you from the contents of this Welcome page

You can start with Architecture and Security.

Cluster installer activities

As someone setting out to install an OKD Latest cluster, this documentation will help you:

  • Install a cluster on Red Hat Virtualization: You can deploy clusters on Red Hat Virtualization with a quick install or an install with customizations.

  • Install a cluster in a restricted network: If your cluster that uses user-provisioned infrastructure on AWS, GCP, vSphere, or bare metal does not have full access to the internet, you can mirror the OKD installation images and install a cluster in a restricted network.

  • Install a cluster in an existing network: If you use an existing Virtual Private Cloud (VPC) in AWS or GCP or an existing VNet on Azure, you can install a cluster.

  • Install a private cluster: If your cluster does not require external internet access, you can install a private cluster on AWS, Azure, or GCP. Internet access is still required to access the cloud APIs and installation media.

  • Check installation logs: Access installation logs to evaluate issues that occur during OKD Latest installation.

  • Access OKD: Use credentials output at the end of the installation process to log in to the OKD cluster from the command line or web console.

  • Install Red Hat OpenShift Container Storage

Developer activities

Ultimately, OKD is a platform for developing and deploying containerized applications. As an application developer, OKD documentation will help you:

  • Understand OKD development: Learn the different types of containerized applications, from simple containers to advanced Kubernetes deployments and Operators.

  • Work with projects: Create projects from the web console or CLI to organize and share the software you develop.

  • Work with applications: Use the Developer perspective in the OKD web console to easily create and deploy applications. Use the Topology view to visually interact with your applications, monitor status, connect and group components, and modify your code base.

  • Use the developer CLI tool (odo): The odo CLI tool lets developers create single or multi-component applications easily and automates deployment, build, and service route configurations. It abstracts complex Kubernetes and OKD concepts, allowing developers to focus on developing their applications.

  • Create CI/CD Pipelines: Pipelines are serverless, cloud-native, continuous integration and continuous deployment systems that run in isolated containers. They use standard Tekton Custom Resources to automate deployments and are designed for decentralized teams that work on microservices-based architecture.

  • Deploy Helm Charts: Helm 3 is a package manager that helps developers define, install, and update application packages on Kubernetes. A Helm Chart is a packaging format that describes an application that can be deployed using the Helm CLI.

  • Understand Operators: Operators are the preferred method for creating on-cluster applications for OKD Latest. Learn about the Operator Framework and how to deploy applications using installed Operators into your projects.

  • Understand image builds: Choose from different build strategies (Docker, S2I, custom, and pipeline) that can include different kinds of source materials (from places like Git repositories, local binary inputs, and external artifacts). Then, follow examples of build types from basic builds to advanced builds.

  • Create container images: A container image is the most basic building block in OKD (and Kubernetes) applications. Defining imagestreams lets you gather multiple versions of an image in one place as you continue its development. S2I containers let you insert your source code into a base container that is set up to run code of a particular type (such as Ruby, Node.js, or Python).

  • Create Deployments and DeploymentConfigs: Use Deployments and DeploymentConfigs to exert fine-grained management over applications. Use the Workloads page or oc CLI to manage DeploymentConfigs. Learn Rolling, Recreate, and Custom deployment strategies.

  • Create templates: Use existing templates or create your own templates that describe how an application is built or deployed. A template can combine images with descriptions, parameters, replicas, exposed ports and other content that defines how an application can be run or built.

  • Create Operators: Operators are the preferred method for creating on-cluster applications for OKD Latest. Learn the workflow for building, testing, and deploying Operators. Then create your own Operators based on Ansible or Helm, or configure built-in Prometheus monitoring using the Operator SDK.

Cluster administrator activities

Ongoing tasks on your OKD Latest cluster include various activities for managing machines, providing services to users, and following monitoring and logging features that watch over the cluster. As a cluster administrator, this documentation will help you:

Manage cluster components

Change cluster components

Monitor the cluster