This page describes the CoreDNS upgrade process and how to install CoreDNS instead of kube-dns. Before you begin You need to have a Kubernetes cluster, and the kubectl command-line tool must be configured to communicate with your cluster. It is recommended to run this tutorial on a cluster with at least two nodes that are not acting as control plane hosts. If you do not already have a cluster, you can create one by using minikube or you can use one of these Kubernetes playgrounds:

Production-Grade Container Orchestration

Details of Kubernetes authorization mechanisms and supported authorization modes.

FEATURE STATE: Kubernetes v1.19 [stable] Seccomp stands for secure computing mode and has been a feature of the Linux kernel since version 2.6.12. It can be used to sandbox the privileges of a process, restricting the calls it is able to make from userspace into the kernel. Kubernetes lets you automatically apply seccomp profiles loaded onto a node to your Pods and containers. Identifying the privileges required for your workloads can be difficult.

Synopsis kubectl controls the Kubernetes cluster manager. Find more information at: https://kubernetes.io/docs/reference/kubectl/ kubectl [flags] Options --as string Username to impersonate for the operation. User could be a regular user or a service account in a namespace. --as-group strings Group to impersonate for the operation, this flag can be repeated to specify multiple groups. --as-uid string UID to impersonate for the operation. --cache-dir string     Default: "$HOME/.kube/cache" Default cache directory --certificate-authority string Path to a cert file for the certificate authority

Kubernetes nodes come pre-populated with a standard set of labels. You can also set your own labels on nodes, either through the kubelet configuration or using the Kubernetes API. Preset labels The preset labels that Kubernetes sets on nodes are: kubernetes.io/arch kubernetes.io/hostname kubernetes.io/os node.kubernetes.io/instance-type (if known to the kubelet – Kubernetes may not have this information to set the label) topology.kubernetes.io/region (if known to the kubelet – Kubernetes may not have this information to set the label) topology.

Collection of Pod & Container metrics via the CRI.

Production-Grade Container Orchestration

Configure and manage huge pages as a schedulable resource in a cluster.

Production-Grade Container Orchestration