This section of the Kubernetes documentation contains references.

API Reference

• Glossary - a comprehensive, standardized list of Kubernetes terminology

• Kubernetes API Reference

• One-page API Reference for Kubernetes v1.33

• Using The Kubernetes API - overview of the API for Kubernetes.

• API access control - details on how Kubernetes controls API access

• Well-Known Labels, Annotations and Taints

Officially supported client libraries

To call the Kubernetes API from a programming language, you can useclient libraries. Officially supportedclient libraries:

• Kubernetes Go client library
• Kubernetes Python client library
• Kubernetes Java client library
• Kubernetes JavaScript client library
• Kubernetes C# client library
• Kubernetes Haskell client library

CLI

• kubectl - Main CLI tool for running commands and managing Kubernetes clusters.
  • JSONPath - Syntax guide for usingJSONPath expressions with kubectl.
• kubeadm - CLI tool to easily provision a secure Kubernetes cluster.

Components

• kubelet - Theprimary agent that runs on each node. The kubelet takes a set of PodSpecsand ensures that the described containers are running and healthy.

• kube-apiserver -REST API that validates and configures data for API objects such as pods,services, replication controllers.

• kube-controller-manager -Daemon that embeds the core control loops shipped with Kubernetes.

• kube-proxy - Cando simple TCP/UDP stream forwarding or round-robin TCP/UDP forwarding acrossa set of back-ends.

• kube-scheduler -Scheduler that manages availability, performance, and capacity.

  • Scheduler Policies
  • Scheduler Profiles

• List ofports and protocols thatshould be open on control plane and worker nodes

Config APIs

This section hosts the documentation for "unpublished" APIs which are used toconfigure kubernetes components or tools. Most of these APIs are not exposedby the API server in a RESTful way though they are essential for a user or anoperator to use or manage a cluster.

• kubeconfig (v1)
• kuberc (v1alpha1)
• kube-apiserver admission (v1)
• kube-apiserver configuration (v1alpha1) and
• kube-apiserver configuration (v1beta1) andkube-apiserver configuration (v1)
• kube-apiserver event rate limit (v1alpha1)
• kubelet configuration (v1alpha1) andkubelet configuration (v1beta1)kubelet configuration (v1)
• kubelet credential providers (v1)kube-scheduler configuration (v1)
• kube-controller-manager configuration (v1alpha1)
• kube-proxy configuration (v1alpha1)
• audit.k8s.io/v1 API
• Client authentication API (v1beta1) andClient authentication API (v1)
• WebhookAdmission configuration (v1)
• ImagePolicy API (v1alpha1)

Config API for kubeadm

• v1beta3
• v1beta4

External APIs

These are the APIs defined by the Kubernetes project, but are not implementedby the core project:

• Metrics API (v1beta1)
• Custom Metrics API (v1beta2)
• External Metrics API (v1beta1)

Design Docs

An archive of the design docs for Kubernetes functionality. Good starting points areKubernetes Architecture andKubernetes Design Overview.