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Kubernetes v1.29 Documentation
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Cluster Architecture

 Github  来源:Kubernetes 浏览 117 扫码 分享 2023-12-19 08:32:09
  • Cluster Architecture
    • Nodes
    • Communication between Nodes and the Control Plane
    • Controllers
    • Leases
    • Cloud Controller Manager
    • About cgroup v2
    • Container Runtime Interface (CRI)
    • Garbage Collection
    • Mixed Version Proxy

    Cluster Architecture

    The architectural concepts behind Kubernetes.

    Components of Kubernetes

    Kubernetes cluster architecture

    Nodes
    Communication between Nodes and the Control Plane
    Controllers
    Leases
    Cloud Controller Manager
    About cgroup v2
    Container Runtime Interface (CRI)
    Garbage Collection
    Mixed Version Proxy
    当前内容版权归 Kubernetes 或其关联方所有，如需对内容或内容相关联开源项目进行关注与资助，请访问 Kubernetes .
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    • 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
          • Installing Kubernetes with kOps
          • Installing Kubernetes with Kubespray
        • 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
        • Objects In Kubernetes
          • Kubernetes Object Management
          • Object Names and IDs
          • Labels and Selectors
          • Namespaces
          • Annotations
          • Field Selectors
          • Finalizers
          • Owners and Dependents
          • Recommended Labels
        • Kubernetes Components
        • The Kubernetes API
      • Cluster Architecture
        • Nodes
        • Communication between Nodes and the Control Plane
        • Controllers
        • Leases
        • Cloud Controller Manager
        • About cgroup v2
        • Container Runtime Interface (CRI)
        • Garbage Collection
        • Mixed Version Proxy
      • Containers
        • Images
        • Container Environment
        • Runtime Class
        • Container Lifecycle Hooks
      • Workloads
        • Pods
          • Pod Lifecycle
          • Init Containers
          • Sidecar Containers
          • Disruptions
          • Ephemeral Containers
          • Pod Quality of Service Classes
          • User Namespaces
          • Downward API
        • Workload Resources
          • Deployments
          • ReplicaSet
          • StatefulSets
          • DaemonSet
          • Jobs
          • Automatic Cleanup for Finished Jobs
          • CronJob
          • ReplicationController
      • 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
        • Volume Health Monitoring
        • Windows Storage
      • Configuration
        • Configuration Best Practices
        • ConfigMaps
        • Secrets
        • Resource Management for Pods and Containers
        • Organizing Cluster Access Using kubeconfig Files
        • Resource Management for Windows nodes
      • Security
        • Overview of Cloud Native Security
        • Pod Security Standards
        • Service Accounts
        • Pod Security Admission
        • Pod Security Policies
        • 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
        • Kubernetes API Server Bypass Risks
        • 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
        • Certificates
        • Managing Resources
        • Cluster Networking
        • Logging Architecture
        • Metrics For Kubernetes System Components
        • System Logs
        • Traces For Kubernetes System Components
        • Proxies in Kubernetes
        • API Priority and Fairness
        • Installing Addons
      • 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
          • Certificate Management with kubeadm
          • Configuring a cgroup driver
          • Reconfiguring a kubeadm cluster
          • Upgrading kubeadm clusters
          • Upgrading Linux nodes
          • Upgrading Windows nodes
          • Changing The Kubernetes Package Repository
        • Migrating from dockershim
          • Changing the Container Runtime on a Node from Docker Engine to containerd
          • Migrate Docker Engine nodes from dockershim to cri-dockerd
          • 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
        • 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
        • Namespaces Walkthrough
        • 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
        • 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
        • 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
        • 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
      • 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
        • 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
        • Set up Ingress on Minikube with the NGINX Ingress Controller
        • 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
        • Configure Certificate Rotation for the Kubelet
        • Manage TLS Certificates in a Cluster
        • Manual Rotation of CA Certificates
      • Manage Cluster Daemons
        • 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
        • 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
        • Example: Configuring a Java Microservice
          • Externalizing config using MicroProfile, ConfigMaps and Secrets
        • Configuring Redis using a ConfigMap
      • 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
      • Services
        • Connecting Applications with Services
        • Using Source IP
        • Explore Termination Behavior for Pods And Their Endpoints
    • Reference
      • Glossary
      • API Overview
        • 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
        • Certificates and Certificate Signing Requests
        • Admission Controllers
        • Dynamic Admission Control
        • Managing Service Accounts
        • Authorization Overview
        • Using RBAC Authorization
        • Using ABAC Authorization
        • Using Node Authorization
        • Mapping PodSecurityPolicies to Pod Security Standards
        • Webhook Mode
        • Kubelet authentication/authorization
        • TLS bootstrapping
        • Validating Admission Policy
      • Well-Known Labels, Annotations and Taints
        • Audit Annotations
      • Kubernetes API
        • Workload Resources
          • Pod
          • PodTemplate
          • ReplicationController
          • ReplicaSet
          • Deployment
          • StatefulSet
          • ControllerRevision
          • DaemonSet
          • Job
          • CronJob
          • HorizontalPodAutoscaler
          • HorizontalPodAutoscaler
          • PriorityClass
          • PodSchedulingContext v1alpha2
          • ResourceClaim v1alpha2
          • ResourceClaimTemplate v1alpha2
          • ResourceClass v1alpha2
        • Service Resources
          • Service
          • Endpoints
          • EndpointSlice
          • Ingress
          • IngressClass
        • Config and Storage Resources
          • ConfigMap
          • Secret
          • Volume
          • PersistentVolumeClaim
          • PersistentVolume
          • StorageClass
          • VolumeAttachment
          • CSIDriver
          • CSINode
          • CSIStorageCapacity
        • Authentication Resources
          • ServiceAccount
          • TokenRequest
          • TokenReview
          • CertificateSigningRequest
          • ClusterTrustBundle v1alpha1
          • SelfSubjectReview
        • Authorization Resources
          • LocalSubjectAccessReview
          • SelfSubjectAccessReview
          • SelfSubjectRulesReview
          • SubjectAccessReview
          • ClusterRole
          • ClusterRoleBinding
          • Role
          • RoleBinding
        • Policy Resources
          • LimitRange
          • ResourceQuota
          • NetworkPolicy
          • PodDisruptionBudget
          • IPAddress v1alpha1
        • Extend Resources
          • CustomResourceDefinition
          • MutatingWebhookConfiguration
          • ValidatingWebhookConfiguration
          • ValidatingAdmissionPolicy v1beta1
        • Cluster Resources
          • Node
          • Namespace
          • Event
          • APIService
          • Lease
          • RuntimeClass
          • FlowSchema v1beta3
          • PriorityLevelConfiguration v1beta3
          • Binding
          • ComponentStatus
          • ClusterCIDR v1alpha1
        • Common Definitions
          • DeleteOptions
          • LabelSelector
          • ListMeta
          • LocalObjectReference
          • NodeSelectorRequirement
          • ObjectFieldSelector
          • ObjectMeta
          • ObjectReference
          • Patch
          • Quantity
          • ResourceFieldSelector
          • Status
          • TypedLocalObjectReference
        • Other Resources
          • ValidatingAdmissionPolicyBindingList v1beta1
        • Common Parameters
      • Instrumentation
        • Service Level Indicator Metrics
        • CRI Pod & Container Metrics
        • Node metrics data
        • Kubernetes Metrics Reference
      • Kubernetes Issues and Security
        • Kubernetes Issue Tracker
        • Kubernetes Security and Disclosure Information
        • CVE feed
      • Node Reference Information
        • Kubelet Checkpoint API
        • Articles on dockershim Removal and on Using CRI-compatible Runtimes
        • Node Labels Populated By The Kubelet
        • Kubelet Device Manager API Versions
        • Node Status
      • Networking Reference
        • Protocols for Services
        • Ports and Protocols
        • Virtual IPs and Service Proxies
      • Setup tools
        • Kubeadm
          • kubeadm init
          • kubeadm join
          • kubeadm upgrade
          • kubeadm config
          • kubeadm reset
          • kubeadm token
          • kubeadm version
          • kubeadm alpha
          • kubeadm certs
          • kubeadm init phase
          • kubeadm join phase
          • kubeadm kubeconfig
          • kubeadm reset phase
          • kubeadm upgrade phase
          • Implementation details
      • Command line tool (kubectl)
        • kubectl Cheat Sheet
        • kubectl Commands
        • kubectl
        • JSONPath Support
        • kubectl for Docker Users
        • kubectl Usage Conventions
      • Component tools
        • Feature Gates
        • Feature Gates (removed)
        • kubelet
        • kube-apiserver
        • kube-controller-manager
        • kube-proxy
        • kube-scheduler
      • Debug cluster
        • Flow control
      • Configuration APIs
        • Client Authentication (v1)
        • Client Authentication (v1beta1)
        • Event Rate Limit Configuration (v1alpha1)
        • Image Policy API (v1alpha1)
        • kube-apiserver Admission (v1)
        • kube-apiserver Audit Configuration (v1)
        • kube-apiserver Configuration (v1)
        • kube-apiserver Configuration (v1alpha1)
        • kube-apiserver Configuration (v1beta1)
        • kube-apiserver Encryption Configuration (v1)
        • kube-controller-manager Configuration (v1alpha1)
        • kube-proxy Configuration (v1alpha1)
        • kube-scheduler Configuration (v1)
        • kubeadm Configuration (v1beta3)
        • kubeadm Configuration (v1beta4)
        • kubeconfig (v1)
        • Kubelet Configuration (v1)
        • Kubelet Configuration (v1alpha1)
        • Kubelet Configuration (v1beta1)
        • Kubelet CredentialProvider (v1)
        • WebhookAdmission Configuration (v1)
      • External APIs
        • Kubernetes Custom Metrics (v1beta2)
        • Kubernetes External Metrics (v1beta1)
        • Kubernetes Metrics (v1beta1)
      • Scheduling
        • Scheduler Configuration
        • Scheduling Policies
      • Other Tools
        • Mapping from dockercli to crictl
    • Contribute
      • Suggesting content improvements
      • Contributing new content
        • Opening a pull request
        • Documenting for a release
        • Blogs and case studies
      • Reviewing changes
        • Reviewing pull requests
        • For approvers and reviewers
      • Localizing Kubernetes documentation
      • Participating in SIG Docs
        • Roles and responsibilities
        • Issue Wranglers
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      • Documentation style overview
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        • Diagram guide
        • Writing a new topic
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        • Custom Hugo Shortcodes
      • Updating Reference Documentation
        • Quickstart
        • Contributing to the Upstream Kubernetes Code
        • Generating Reference Documentation for the Kubernetes API
        • Generating Reference Documentation for kubectl Commands
        • Generating Reference Pages for Kubernetes Components and Tools
      • Advanced contributing
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