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Kubernetes Documentation
Documentation
Available Documentation Versions
Getting started
Learning environment
Production environment
Container Runtimes
Installing Kubernetes with deployment tools
Bootstrapping clusters with kubeadm
Installing kubeadm
Troubleshooting kubeadm
Creating a cluster with kubeadm
Customizing components with the kubeadm API
Options for Highly Available Topology
Creating Highly Available Clusters with kubeadm
Set up a High Availability etcd Cluster with kubeadm
Configuring each kubelet in your cluster using kubeadm
Dual-stack support with kubeadm
Turnkey Cloud Solutions
Best practices
Considerations for large clusters
Running in multiple zones
Validate node setup
Enforcing Pod Security Standards
PKI certificates and requirements
Concepts
Overview
Kubernetes Components
Objects In Kubernetes
Kubernetes Object Management
Object Names and IDs
Labels and Selectors
Namespaces
Annotations
Field Selectors
Finalizers
Owners and Dependents
Recommended Labels
The Kubernetes API
Cluster Architecture
Nodes
Communication between Nodes and the Control Plane
Controllers
Leases
Cloud Controller Manager
About cgroup v2
Kubernetes Self-Healing
Garbage Collection
Mixed Version Proxy
Containers
Images
Container Environment
Runtime Class
Container Lifecycle Hooks
Container Runtime Interface (CRI)
Workloads
Pods
Pod Lifecycle
Init Containers
Sidecar Containers
Ephemeral Containers
Disruptions
Pod Hostname
Pod Quality of Service Classes
User Namespaces
Downward API
Workload Management
Deployments
ReplicaSet
StatefulSets
DaemonSet
Jobs
Automatic Cleanup for Finished Jobs
CronJob
ReplicationController
Autoscaling Workloads
Managing Workloads
Vertical Pod Autoscaling
Services, Load Balancing, and Networking
Service
Ingress
Ingress Controllers
Gateway API
EndpointSlices
Network Policies
DNS for Services and Pods
IPv4/IPv6 dual-stack
Topology Aware Routing
Networking on Windows
Service ClusterIP allocation
Service Internal Traffic Policy
Storage
Volumes
Persistent Volumes
Projected Volumes
Ephemeral Volumes
Storage Classes
Volume Attributes Classes
Dynamic Volume Provisioning
Volume Snapshots
Volume Snapshot Classes
CSI Volume Cloning
Storage Capacity
Node-specific Volume Limits
Local ephemeral storage
Volume Health Monitoring
Windows Storage
Configuration
ConfigMaps
Secrets
Liveness, Readiness, and Startup Probes
Resource Management for Pods and Containers
Organizing Cluster Access Using kubeconfig Files
Resource Management for Windows nodes
Security
Cloud Native Security
Pod Security Standards
Pod Security Admission
Service Accounts
Pod Security Policies
Security For Linux Nodes
Security For Windows Nodes
Controlling Access to the Kubernetes API
Role Based Access Control Good Practices
Good practices for Kubernetes Secrets
Multi-tenancy
Hardening Guide - Authentication Mechanisms
Hardening Guide - Scheduler Configuration
Kubernetes API Server Bypass Risks
Linux kernel security constraints for Pods and containers
Security Checklist
Application Security Checklist
Policies
Limit Ranges
Resource Quotas
Process ID Limits And Reservations
Node Resource Managers
Scheduling, Preemption and Eviction
Kubernetes Scheduler
Assigning Pods to Nodes
Pod Overhead
Pod Scheduling Readiness
Pod Topology Spread Constraints
Taints and Tolerations
Scheduling Framework
Dynamic Resource Allocation
Scheduler Performance Tuning
Resource Bin Packing
Pod Priority and Preemption
Node-pressure Eviction
API-initiated Eviction
Cluster Administration
Node Shutdowns
Swap memory management
Node Autoscaling
Certificates
Cluster Networking
Observability
Admission Webhook Good Practices
Good practices for Dynamic Resource Allocation as a Cluster Admin
Logging Architecture
Compatibility Version For Kubernetes Control Plane Components
Metrics For Kubernetes System Components
Metrics for Kubernetes Object States
System Logs
Traces For Kubernetes System Components
Proxies in Kubernetes
API Priority and Fairness
Installing Addons
Coordinated Leader Election
Windows in Kubernetes
Windows containers in Kubernetes
Guide for Running Windows Containers in Kubernetes
Extending Kubernetes
Compute, Storage, and Networking Extensions
Network Plugins
Device Plugins
Extending the Kubernetes API
Custom Resources
Kubernetes API Aggregation Layer
Operator pattern
Tasks
Install Tools
Install and Set Up kubectl on Linux
Install and Set Up kubectl on macOS
Install and Set Up kubectl on Windows
Administer a Cluster
Administration with kubeadm
Adding Linux worker nodes
Adding Windows worker nodes
Upgrading kubeadm clusters
Upgrading Linux nodes
Upgrading Windows nodes
Configuring a cgroup driver
Certificate Management with kubeadm
Reconfiguring a kubeadm cluster
Changing The Kubernetes Package Repository
Overprovision Node Capacity For A Cluster
Migrating from dockershim
Changing the Container Runtime on a Node from Docker Engine to containerd
Find Out What Container Runtime is Used on a Node
Troubleshooting CNI plugin-related errors
Check whether dockershim removal affects you
Migrating telemetry and security agents from dockershim
Generate Certificates Manually
Manage Memory, CPU, and API Resources
Configure Default Memory Requests and Limits for a Namespace
Configure Default CPU Requests and Limits for a Namespace
Configure Minimum and Maximum Memory Constraints for a Namespace
Configure Minimum and Maximum CPU Constraints for a Namespace
Configure Memory and CPU Quotas for a Namespace
Configure a Pod Quota for a Namespace
Install a Network Policy Provider
Use Antrea for NetworkPolicy
Use Calico for NetworkPolicy
Use Cilium for NetworkPolicy
Use Kube-router for NetworkPolicy
Romana for NetworkPolicy
Weave Net for NetworkPolicy
Access Clusters Using the Kubernetes API
Enable Or Disable Feature Gates
Advertise Extended Resources for a Node
Autoscale the DNS Service in a Cluster
Change the Access Mode of a PersistentVolume to ReadWriteOncePod
Change the default StorageClass
Switching from Polling to CRI Event-based Updates to Container Status
Change the Reclaim Policy of a PersistentVolume
Cloud Controller Manager Administration
Configure a kubelet image credential provider
Configure Quotas for API Objects
Control CPU Management Policies on the Node
Control Topology Management Policies on a node
Customizing DNS Service
Debugging DNS Resolution
Declare Network Policy
Developing Cloud Controller Manager
Enable Or Disable A Kubernetes API
Encrypting Confidential Data at Rest
Decrypt Confidential Data that is Already Encrypted at Rest
Guaranteed Scheduling For Critical Add-On Pods
IP Masquerade Agent User Guide
Limit Storage Consumption
Migrate Replicated Control Plane To Use Cloud Controller Manager
Operating etcd clusters for Kubernetes
Reserve Compute Resources for System Daemons
Running Kubernetes Node Components as a Non-root User
Safely Drain a Node
Securing a Cluster
Set Kubelet Parameters Via A Configuration File
Share a Cluster with Namespaces
Upgrade A Cluster
Use Cascading Deletion in a Cluster
Using a KMS provider for data encryption
Using CoreDNS for Service Discovery
Using NodeLocal DNSCache in Kubernetes Clusters
Using sysctls in a Kubernetes Cluster
Utilizing the NUMA-aware Memory Manager
Verify Signed Kubernetes Artifacts
Configure Pods and Containers
Assign Memory Resources to Containers and Pods
Assign CPU Resources to Containers and Pods
Assign Devices to Pods and Containers
Set Up DRA in a Cluster
Allocate Devices to Workloads with DRA
Assign Pod-level CPU and memory resources
Configure GMSA for Windows Pods and containers
Resize CPU and Memory Resources assigned to Containers
Configure RunAsUserName for Windows pods and containers
Create a Windows HostProcess Pod
Configure Quality of Service for Pods
Assign Extended Resources to a Container
Configure a Pod to Use a Volume for Storage
Configure a Pod to Use a PersistentVolume for Storage
Configure a Pod to Use a Projected Volume for Storage
Configure a Security Context for a Pod or Container
Configure Service Accounts for Pods
Pull an Image from a Private Registry
Configure Liveness, Readiness and Startup Probes
Assign Pods to Nodes
Assign Pods to Nodes using Node Affinity
Configure Pod Initialization
Attach Handlers to Container Lifecycle Events
Configure a Pod to Use a ConfigMap
Share Process Namespace between Containers in a Pod
Use a User Namespace With a Pod
Use an Image Volume With a Pod
Create static Pods
Translate a Docker Compose File to Kubernetes Resources
Enforce Pod Security Standards by Configuring the Built-in Admission Controller
Enforce Pod Security Standards with Namespace Labels
Migrate from PodSecurityPolicy to the Built-In PodSecurity Admission Controller
Monitoring, Logging, and Debugging
Logging in Kubernetes
Monitoring in Kubernetes
Troubleshooting Applications
Debug Pods
Debug Services
Debug a StatefulSet
Determine the Reason for Pod Failure
Debug Init Containers
Debug Running Pods
Get a Shell to a Running Container
Troubleshooting Clusters
Troubleshooting kubectl
Resource metrics pipeline
Tools for Monitoring Resources
Monitor Node Health
Debugging Kubernetes nodes with crictl
Auditing
Debugging Kubernetes Nodes With Kubectl
Developing and debugging services locally using telepresence
Windows debugging tips
Manage Kubernetes Objects
Declarative Management of Kubernetes Objects Using Configuration Files
Declarative Management of Kubernetes Objects Using Kustomize
Managing Kubernetes Objects Using Imperative Commands
Imperative Management of Kubernetes Objects Using Configuration Files
Update API Objects in Place Using kubectl patch
Migrate Kubernetes Objects Using Storage Version Migration
Managing Secrets
Managing Secrets using kubectl
Managing Secrets using Configuration File
Managing Secrets using Kustomize
Inject Data Into Applications
Define a Command and Arguments for a Container
Define Dependent Environment Variables
Define Environment Variables for a Container
Define Environment Variable Values Using An Init Container
Expose Pod Information to Containers Through Environment Variables
Expose Pod Information to Containers Through Files
Distribute Credentials Securely Using Secrets
Run Applications
Run a Stateless Application Using a Deployment
Run a Single-Instance Stateful Application
Run a Replicated Stateful Application
Scale a StatefulSet
Delete a StatefulSet
Force Delete StatefulSet Pods
Horizontal Pod Autoscaling
HorizontalPodAutoscaler Walkthrough
Specifying a Disruption Budget for your Application
Accessing the Kubernetes API from a Pod
Run Jobs
Running Automated Tasks with a CronJob
Coarse Parallel Processing Using a Work Queue
Fine Parallel Processing Using a Work Queue
Indexed Job for Parallel Processing with Static Work Assignment
Job with Pod-to-Pod Communication
Parallel Processing using Expansions
Handling retriable and non-retriable pod failures with Pod failure policy
Access Applications in a Cluster
Deploy and Access the Kubernetes Dashboard
Accessing Clusters
Configure Access to Multiple Clusters
Use Port Forwarding to Access Applications in a Cluster
Use a Service to Access an Application in a Cluster
Connect a Frontend to a Backend Using Services
Create an External Load Balancer
List All Container Images Running in a Cluster
Communicate Between Containers in the Same Pod Using a Shared Volume
Configure DNS for a Cluster
Access Services Running on Clusters
Extend Kubernetes
Configure the Aggregation Layer
Use Custom Resources
Extend the Kubernetes API with CustomResourceDefinitions
Versions in CustomResourceDefinitions
Set up an Extension API Server
Configure Multiple Schedulers
Use an HTTP Proxy to Access the Kubernetes API
Use a SOCKS5 Proxy to Access the Kubernetes API
Set up Konnectivity service
TLS
Issue a Certificate for a Kubernetes API Client Using A CertificateSigningRequest
Configure Certificate Rotation for the Kubelet
Manage TLS Certificates in a Cluster
Manual Rotation of CA Certificates
Manage Cluster Daemons
Building a Basic DaemonSet
Perform a Rolling Update on a DaemonSet
Perform a Rollback on a DaemonSet
Running Pods on Only Some Nodes
Networking
Adding entries to Pod /etc/hosts with HostAliases
Extend Service IP Ranges
Kubernetes Default ServiceCIDR Reconfiguration
Validate IPv4/IPv6 dual-stack
Extend kubectl with plugins
Manage HugePages
Schedule GPUs
Tutorials
Hello Minikube
Learn Kubernetes Basics
Create a Cluster
Using Minikube to Create a Cluster
Deploy an App
Using kubectl to Create a Deployment
Explore Your App
Viewing Pods and Nodes
Expose Your App Publicly
Using a Service to Expose Your App
Scale Your App
Running Multiple Instances of Your App
Update Your App
Performing a Rolling Update
Configuration
Updating Configuration via a ConfigMap
Configuring Redis using a ConfigMap
Adopting Sidecar Containers
Security
Apply Pod Security Standards at the Cluster Level
Apply Pod Security Standards at the Namespace Level
Restrict a Container's Access to Resources with AppArmor
Restrict a Container's Syscalls with seccomp
Stateless Applications
Exposing an External IP Address to Access an Application in a Cluster
Example: Deploying PHP Guestbook application with Redis
Stateful Applications
StatefulSet Basics
Example: Deploying WordPress and MySQL with Persistent Volumes
Example: Deploying Cassandra with a StatefulSet
Running ZooKeeper, A Distributed System Coordinator
Cluster Management
Running Kubelet in Standalone Mode
Configuring swap memory on Kubernetes nodes
Install Drivers and Allocate Devices with DRA
Namespaces Walkthrough
Services
Connecting Applications with Services
Using Source IP
Explore Termination Behavior for Pods And Their Endpoints
Reference
Glossary
API Overview
Declarative API Validation
Kubernetes API Concepts
Server-Side Apply
Client Libraries
Common Expression Language in Kubernetes
Kubernetes Deprecation Policy
Deprecated API Migration Guide
Kubernetes API health endpoints
API Access Control
Authenticating
Authenticating with Bootstrap Tokens
Authorization
Using RBAC Authorization
Using Node Authorization
Webhook Mode
Using ABAC Authorization
Admission Control
Dynamic Admission Control
Managing Service Accounts
Certificates and Certificate Signing Requests
Mapping PodSecurityPolicies to Pod Security Standards
Kubelet authentication/authorization
TLS bootstrapping
Mutating Admission Policy
Validating Admission Policy
Well-Known Labels, Annotations and Taints
Audit Annotations
Kubernetes API
Workload Resources
Pod
Binding
PodTemplate
ReplicationController
ReplicaSet
Deployment
StatefulSet
ControllerRevision
DaemonSet
Job
CronJob
HorizontalPodAutoscaler
HorizontalPodAutoscaler
PriorityClass
DeviceTaintRule v1alpha3
ResourceClaim
ResourceClaimTemplate
ResourceSlice
Service Resources
Service
Endpoints
EndpointSlice
Ingress
IngressClass
Config and Storage Resources
ConfigMap
Secret
CSIDriver
CSINode
CSIStorageCapacity
PersistentVolumeClaim
PersistentVolume
StorageClass
StorageVersionMigration v1alpha1
Volume
VolumeAttachment
VolumeAttributesClass
Authentication Resources
ServiceAccount
TokenRequest
TokenReview
CertificateSigningRequest