Kubernetes uses 'Etcd' to store the configuration data accessed by all nodes (minions and master) in the cluster. Regardless of the number of nodes, a Kubernetes cluster will always have the same general architecture : at least one master node and several worker nodes. You can use it to manage the lifecycle of containerized apps in a cluster of nodes, which is a collection of worker machines such as VMs or physical machines. Dernire modification April 16, 2019 at 10:31 AM PST: Versions supportes de la documentation Kubernetes, Kubernetes version and version skew support policy, Installer Kubernetes avec les outils de dploiement, Cration d'un Cluster a master unique avec kubeadm, Personnalisation de la configuration du control plane avec kubeadm, Options pour la topologie en haute disponibilit, Cration de clusters hautement disponibles avec kubeadm, Configurer un cluster etcd en haute disponibilit avec kubeadm, Configuration des kubelet de votre cluster avec kubeadm, Configuring your kubernetes cluster to self-host the control plane, Guide for scheduling Windows containers in Kubernetes, Installer Kubernetes avec Kubespray (on-premises et fournisseurs de cloud), Concepts sous-jacents au Cloud Controller Manager, Contraintes de propagation de topologie pour les Pods, Services, Equilibreur de charge, et Rseau, Adding entries to Pod /etc/hosts with HostAliases, Organizing Cluster Access Using kubeconfig Files, Resource Bin Packing for Extended Resources, Vue d'ensemble de l'administration d'un cluster, Architecture de Journalisation d'vnements (logging), Extending the Kubernetes API with the aggregation layer, Gestion de la mmoire du CPU et des ressources d'API, 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, Installation d'un fournisseur de politiques de rseau, Change the Reclaim Policy of a PersistentVolume, Control CPU Management Policies on the Node, Control Topology Management Policies on a node, Guaranteed Scheduling For Critical Add-On Pods, Reconfigure a Node's Kubelet in a Live Cluster, Reserve Compute Resources for System Daemons, Set up High-Availability Kubernetes Masters, Using NodeLocal DNSCache in Kubernetes clusters, Allouer des ressources mmoire aux conteneurs et aux pods, Allouer des ressources CPU aux conteneurs et aux pods, Configure GMSA for Windows Pods and containers, Configure RunAsUserName for Windows pods and containers, Configurer la qualit de service pour les pods, Affecter des ressources supplmentaires un conteneur, Configurer un pod en utilisant un volume pour le stockage, 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, Configurer les comptes de service pour les pods, Rcupration d'une image d'un registre priv, Configurer les Liveness, Readiness et Startup Probes, Attach Handlers to Container Lifecycle Events, Partager l'espace de nommage des processus entre les conteneurs d'un Pod, Convertir un fichier Docker Compose en ressources Kubernetes, 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, Injection des donnes dans les applications, Define a Command and Arguments for a Container, 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, Inject Information into Pods Using a PodPreset, Run a Stateless Application Using a Deployment, Run a Single-Instance Stateful Application, Specifying a Disruption Budget for your Application, Coarse Parallel Processing Using a Work Queue, Fine Parallel Processing Using a Work Queue, Use Port Forwarding to Access Applications in a Cluster, Use a Service to Access an Application in a Cluster, Connect a Front End to a Back End Using a Service, Lister toutes les images de conteneur excutes dans un cluster, Set up Ingress on Minikube with the NGINX Ingress Controller, Communicate Between Containers in the Same Pod Using a Shared Volume, Developing and debugging services locally, Obtenez un shell dans un conteneur en cours d'excution, Extend the Kubernetes API with CustomResourceDefinitions, Use an HTTP Proxy to Access the Kubernetes API, Utilisation des ressources personnalises, Configure Certificate Rotation for the Kubelet, Administration du Control Plane de la fdration, Didacticiel interactif - Cration d'un cluster, Utiliser kubectl pour crer un dploiement, Tutoriel interactif - Dploiement d'une application, Interactive Tutorial - Exploring Your App, Externalizing config using MicroProfile, ConfigMaps and Secrets, Interactive Tutorial - Configuring a Java Microservice, Exposing an External IP Address to Access an Application in a Cluster, Example: Deploying PHP Guestbook application with Redis, Example: Add logging and metrics to the PHP / Redis Guestbook example, Example: Deploying WordPress and MySQL with Persistent Volumes, Example: Deploying Cassandra with a StatefulSet, Running ZooKeeper, A Distributed System Coordinator, Restrict a Container's Access to Resources with AppArmor, Restrict a Container's Syscalls with Seccomp, Problmes et alertes de scurit de Kubernetes, Kubernetes Security and Disclosure Information, Well-Known Labels, Annotations and Taints, Rfrence sur les outils en ligne de commande, Vue d'ensemble des documents de rfrence, Contributing to the Upstream Kubernetes Code, Generating Reference Documentation for kubectl Commands, Gnration de documentation de rfrence pour l'API Kubernetes, Gnration de la documentation de rfrence pour l'API de fdration Kubernetes, Gnration de pages de rfrence pour les composants et les outils Kubernetes, Traduction de la documentation Kubernetes, Add description meta tag to improve SEO results (#13799) (7092bd3ca). Control plane [ edit ] The Kubernetes master is the main controlling unit of the cluster, managing its workload and directing communication across the system. Kubernetes is a distributed systems platform and follows a client-server architecture. 4. Every cluster has one ore more worker nodes. Kubernetes - Cluster Architecture As seen in the following diagram, Kubernetes follows client-server architecture. A Kubernetes cluster consists of one or more nodes managed by Kubernetes. The node(s) host the Pods that are the components of the application workload. Wherein, we have master installed on one machine and the node on separate Linux machines. En comprenant comment ces composants communiquent entre eux, avec les ressources externes et avec l'infrastructure, vous pouvez mieux apprhender les dfis que reprsentent la configuration et la scurisation d'un cluster Kubernetes. report a problem We start with a basic overview of the Kubernetes cluster architecture. suggest an improvement. A Kubernetes cluster is usually deployed across several nodes : from single-node clusters up to 5000-node large clusters. Le Control Plane Kubernetes est l'lment central d'un cluster K8S.Sans lui (ou eux, car un Control Plane peut tre form de plusieurs nuds) le cluster ne peut pas fonctionner. Cette architecture de rfrence prsente une application de microservices dploye sur AKS (Azure Kubernetes Service). From a high level, a Kubernetes environment consists of a control plane (master), a distributed storage system for keeping the cluster state consistent (), and a number of cluster nodes (Kubelets). Voici quoi ressemble une architecture Kubernetes: Laissez-moi vous parler en dtail des composants du nud matre et des nuds de travail. Stack Overflow. In this reference architecture, well build a baseline infrastructure that deploys an Azure Kubernetes Service (AKS) cluster. 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