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The aggregation layer allows Kubernetes to be extended with additional APIs, beyond what is offered by the core Kubernetes APIs. The additional APIs can either be ready-made solutions such as a metrics server , or APIs that you develop yourself. The aggregation layer is different from Custom Resourc
API-initiated eviction is the process by which you use the Eviction API to create an Eviction object that triggers graceful pod termination. You can request eviction by calling the Eviction API directly, or programmatically using a client of the API server , like the kubectl drain command. This crea
Recommendations for designing and deploying admission webhooks in Kubernetes. This page provides good practices and considerations when designing admission webhooks in Kubernetes. This information is intended for cluster operators who run admission webhook servers or third-party applications that mo
Finalizers are namespaced keys that tell Kubernetes to wait until specific conditions are met before it fully deletes resources that are marked for deletion. Finalizers alert controllers to clean up resources the deleted object owned. When you tell Kubernetes to delete an object that has finalizers
In Kubernetes, some objects are owners of other objects. For example, a ReplicaSet is the owner of a set of Pods. These owned objects are dependents of their owner. Ownership is different from the labels and selectors mechanism that some resources also use. For example, consider a Service that creat
In robotics and automation, a control loop is a non-terminating loop that regulates the state of a system. Here is one example of a control loop: a thermostat in a room. When you set the temperature, that's telling the thermostat about your desired state . The actual room temperature is the current
This page explains proxies used with Kubernetes. Proxies There are several different proxies you may encounter when using Kubernetes: The kubectl proxy : runs on a user's desktop or in a pod proxies from a localhost address to the Kubernetes apiserver client to proxy uses HTTP proxy to apiserver use
Automatically provision and consolidate the Nodes in your cluster to adapt to demand and optimize cost. In order to run workloads in your cluster, you need Nodes . Nodes in your cluster can be autoscaled - dynamically provisioned , or consolidated to provide needed capacity while optimizing cost. Au
This page describes the Kubernetes API kinds that dynamic resource allocation (DRA) uses to categorize, request, and allocate devices. DRA terminology DRA uses the following Kubernetes API kinds to provide the core allocation functionality. All of these API kinds are included in the resource.k8s.io/
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