January 2026
Intermediate to advanced
392 pages
9h 33m
French
book
Guide d'étude de l'administrateur Kubernetes certifié (CKA) (French Edition), 2nd Edition
by Benjamin Muschko
Content preview from Guide d'étude de l'administrateur Kubernetes certifié (CKA) (French Edition), 2nd Edition
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Chapitre 8. Helm et Kustomize
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Les objets Kubernetes peuvent être créés, modifiés et supprimés en utilisant des commandes kubectl impératives ou en exécutant une commande kubectl sur un fichier manifeste qui dit l'état souhaité d'un objet, appelé manifeste. Le langage de définition principal d'un manifeste est YAML, mais tu peux aussi choisir JSON, qui est moins utilisé dans la communauté Kubernetes. Il est recommandé aux équipes de développement de valider et de pousser ces fichiers manifestes vers des référentiels de contrôle de version, car cela facilitera le suivi et l'audit des modifications au fil du temps.
La modélisation d'une application dans Kubernetes nécessite souvent un ensemble d'objets de support, chacun pouvant avoir son propre manifeste. Par exemple, vous pouvez créer un déploiement qui exécute l'application sur cinq pods, une ConfigMap pour injecter des données de configuration sous forme de variables d'environnement et un service pour exposer l'accès au réseau.
Il n'est pas pratique de gérer une pile d'applications complète en exécutant des commandes kubectl individuelles. C'est là que des outils open source comme Helm et Kustomize entrent en jeu. Ils te permettent de gérer facilement le cycle de vie des piles d'applications et des composants du cluster comme une seule unité, tout en permettant l'ajustement des paramètres contextuels ...
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