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Kubernetes v1.15 documentation is no longer actively maintained. The version you are currently viewing is a static snapshot. For up-to-date documentation, see the latest version.

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Documentation Content Guide

This page contains guidelines for adding content to the Kubernetes documentation. If you have questions about allowed content, join the Kubernetes Slack #sig-docs channel and ask! Use your best judgment, and feel free to propose changes to this document in a pull request.

For additional information on creating new content for the Kubernetes docs, follow the instructions in the Style guide.

Contributing content

The Kubernetes documentation comprises the content of the kubernetes/website source repository. Located in the kubernetes/website/content/<language_code>/docs folder, the majority of the Kubernetes documentation is specific to the Kubernetes project. The Kubernetes documentation may also include content from projects in the kubernetes and kubernetes-sigs GitHub organizations if those projects do not have their own documentation. Linking to active kubernetes, kubernetes-sigs, and (CNCFCloud Native Computing Foundation ) projects from the Kubernetes documentation is always allowed, but linking to vendor-specific products is not. Check the CNCF project lists (Graduated/Incubating, Sandbox, Archived) if you are unsure of a project’s CNCF status.

Dual-sourced content

Kubernetes documentation does not include duplicate content sourced from multiple locations (dual-sourced content). Dual-sourced content requires duplicated effort from project maintainers and tends to become outdated more quickly. Before adding content, ask yourself this:

What is and isn’t allowed

There are some scenarios in which the Kubernetes documentation includes content from non-Kubernetes projects. Below are general categories of non-Kubernetes project content along with guidelines of what is and is not allowed:

  1. Instructional content involving non-Kubernetes projects during setup or operation of Kubernetes
    • Allowed:
      • Referring to or linking to existing documentation about a CNCF project or a project in the kubernetes or kubernetes-sigs GitHub organizations
        • Example: for installating Kubernetes in a learning environment, including a prerequisite stating that successful installation and configuration of minikube is required and linking to the relevant minikube documentation
      • Adding content for kubernetes or kubernetes-sigs projects that don’t have their own instructional content
        • Example: including kubadm installation and troubleshooting instructions
    • Not Allowed:
      • Adding content that duplicates documentation in another repository
        • Examples:
          • Including minikube installation and configuration instructions; minikube has its own documentation that provides those instructions
          • Including instructions for installing Docker, CRI-O, containerd, and other container runtimes on various operating systems
          • Including instructions for installing Kubernetes on production environments using various projects:
            • Kubernetes Rebar Integrated Bootstrap (KRIB) is a vendor-specific project and content belongs in the vendor’s documentation
            • Kubernetes Operations (kops) has installation instructions and tutorials in its GitHub repository
            • Kubespray has its own documenation
      • Adding a tutorial that explains how to perform a task using a vendor-specific product or an open source project that is not a CNCF project or a project in the kubernetes or kubnetes-sigs GitHub organizations
      • Adding a tutorial on how to use a CNCF project or a project in the kubernetes or kubnetes-sigs GitHub organizations if the project has its own documentation

  2. Detailed technical content about how to use a non-Kubernetes project or how that project is designed

    Adding this type of content to the Kubernetes documentation is not allowed.

  3. Content that describes a non-Kubernetes project

    • Allowed:
      • Adding a brief introductory paragraph about a CNCF project or a project in the kubernetes or kubernetes-sigs GitHub organizations; the paragraph may contain links to the project
    • Not Allowed:
      • Adding content describing a vendor-specific product
      • Adding content describing an open source project that is not a CNCF project or a project in the kubernetes or kubnetes-sigs GitHub organizations
      • Adding content that duplicates documentation from another project, regardless of source repository

  4. Content that simply links to information about a non-Kubernetes project

    • Allowed:
      • Linking to projects in the kubernetes and kubernetes-sigs GitHub organizations
        • Example: linking to Kubernetes in Docker (KinD) documentation, which resides in the kubernetes-sigs GitHub organization
      • Linking to active CNCF projects
        • Example: linking to the Prometheus documentation; Prometheus is an active CNCF project
    • Not Allowed:
      • Linking to vendor-specific products
      • Linking to archived CNCF projects
      • Linking to inactive projects in the kubernetes and kubernetes-sigs GitHub organizations
      • Linking to open source projects that are not CNCF projects or do not reside in the kubernetes or kubernetes-sigs GitHub organizations

  5. Content about training courses

    • Allowed:
    • Not Allowed:
      • Linking to online training outside of the CNCF, the Linux Foundation, or the Linux Academy; the Kubernetes documentation does not link to third-party content
        • Example: linking to Kubernetes tutorials or courses on Medium, KodeKloud, Udacity, Coursera, learnk8s, and similar websites
      • Linking to vendor-specific tutorials regardless of the training provider

If you have questions about allowed content, join the Kubernetes Slack #sig-docs channel and ask!

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