Kubernetes Configuration APIs, External APIs, and Design Documents

* List of [ports and protocols](/docs/reference/networking/ports-and-protocols/) that should be open on control plane and worker nodes ## Config APIs This section hosts the documentation for "unpublished" APIs which are used to configure kubernetes components or tools. Most of these APIs are not exposed by the API server in a RESTful way though they are essential for a user or an operator to use or manage a cluster. * [kubeconfig (v1)](/docs/reference/config-api/kubeconfig.v1/) * [kuberc (v1alpha1)](/docs/reference/config-api/kuberc.v1alpha1/) * [kube-apiserver admission (v1)](/docs/reference/config-api/apiserver-admission.v1/) * [kube-apiserver configuration (v1alpha1)](/docs/reference/config-api/apiserver-config.v1alpha1/) and * [kube-apiserver configuration (v1beta1)](/docs/reference/config-api/apiserver-config.v1beta1/) and [kube-apiserver configuration (v1)](/docs/reference/config-api/apiserver-config.v1/) * [kube-apiserver event rate limit (v1alpha1)](/docs/reference/config-api/apiserver-eventratelimit.v1alpha1/) * [kubelet configuration (v1alpha1)](/docs/reference/config-api/kubelet-config.v1alpha1/) and [kubelet configuration (v1beta1)](/docs/reference/config-api/kubelet-config.v1beta1/) [kubelet configuration (v1)](/docs/reference/config-api/kubelet-config.v1/) * [kubelet credential providers (v1)](/docs/reference/config-api/kubelet-credentialprovider.v1/) [kube-scheduler configuration (v1)](/docs/reference/config-api/kube-scheduler-config.v1/) * [kube-controller-manager configuration (v1alpha1)](/docs/reference/config-api/kube-controller-manager-config.v1alpha1/) * [kube-proxy configuration (v1alpha1)](/docs/reference/config-api/kube-proxy-config.v1alpha1/) * [`audit.k8s.io/v1` API](/docs/reference/config-api/apiserver-audit.v1/) * [Client authentication API (v1beta1)](/docs/reference/config-api/client-authentication.v1beta1/) and [Client authentication API (v1)](/docs/reference/config-api/client-authentication.v1/) * [WebhookAdmission configuration (v1)](/docs/reference/config-api/apiserver-webhookadmission.v1/) * [ImagePolicy API (v1alpha1)](/docs/reference/config-api/imagepolicy.v1alpha1/) ## Config API for kubeadm * [v1beta3](/docs/reference/config-api/kubeadm-config.v1beta3/) * [v1beta4](/docs/reference/config-api/kubeadm-config.v1beta4/) ## External APIs These are the APIs defined by the Kubernetes project, but are not implemented by the core project: * [Metrics API (v1beta1)](/docs/reference/external-api/metrics.v1beta1/) * [Custom Metrics API (v1beta2)](/docs/reference/external-api/custom-metrics.v1beta2) * [External Metrics API (v1beta1)](/docs/reference/external-api/external-metrics.v1beta1) ## Design Docs An archive of the design docs for Kubernetes functionality. Good starting points are [Kubernetes Architecture](https://git.k8s.io/design-proposals-archive/architecture/architecture.md) and [Kubernetes Design Overview](https://git.k8s.io/design-proposals-archive).

This section outlines the configuration APIs used to configure Kubernetes components and tools, including kubeconfig, kuberc, kube-apiserver, kubelet, kube-scheduler, kube-controller-manager, kube-proxy, audit, client authentication, WebhookAdmission, and ImagePolicy APIs. It also covers configuration APIs for kubeadm, external APIs like Metrics, Custom Metrics, and External Metrics APIs, and provides links to Kubernetes design documents, including the Kubernetes Architecture and Design Overview.