Overview
Get a high-level outline of Kubernetes and the components it is built from.
You are viewing documentation for Kubernetes version: v1.21
Kubernetes v1.21 documentation is no longer actively maintained.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.
Concepts
The Concepts section helps you learn about the parts of the Kubernetes system and the abstractions Kubernetes uses to represent your cluster, and helps you obtain a deeper understanding of how Kubernetes works.
Cluster Architecture
The architectural concepts behind Kubernetes.
Containers
Technology for packaging an application along with its runtime dependencies.
Workloads
Understand Pods, the smallest deployable compute object in Kubernetes, and the higher-level abstractions that help you to run them.
Services, Load Balancing, and Networking
Concepts and resources behind networking in Kubernetes.
Storage
Ways to provide both long-term and temporary storage to Pods in your cluster.
Configuration
Resources that Kubernetes provides for configuring Pods.
Security
Concepts for keeping your cloud-native workload secure.
Policies
Policies you can configure that apply to groups of resources.
Scheduling, Preemption and Eviction
In Kubernetes, scheduling refers to making sure that Pods are matched to Nodes so that the kubelet can run them. Preemption is the process of terminating Pods with lower Priority so that Pods with higher Priority can schedule on Nodes. Eviction is the process of proactively terminating one or more Pods on resource-starved Nodes.
Cluster Administration
Lower-level detail relevant to creating or administering a Kubernetes cluster.
Extending Kubernetes
Different ways to change the behavior of your Kubernetes cluster.
Last modified
June 22, 2020 at 11:01 PM PST
: Add descriptions to Concept sections (3ff7312cff)