September 2024
Intermediate to advanced
230 pages
4h 33m
Spanish
Content preview from Libro de cocina de Kubernetes, 2ª edición
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Capítulo 6. Gestión de manifiestos de aplicación
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En este capítulo, echaremos un vistazo a las formas de simplificar la gestión de aplicaciones en Kubernetes con el uso de herramientas como Helm, kompose, y kapp. Estas herramientas se centran principalmente en la gestión de tus manifiestos YAML. Helm es una herramienta de plantillas, empaquetado y despliegue de YAML, mientras que Kompose es una herramienta que te ayuda a migrar tus archivos Docker Compose a manifiestos de recursos de Kubernetes. kapp es una herramienta relativamente nueva que te permite gestionar un grupo de archivos YAML como una aplicación y, por tanto, gestionar su despliegue como una única aplicación.
6.1 Instalación de Helm, el gestor de paquetes de Kubernetes
Problema
No quieres escribir a mano todos tus manifiestos de Kubernetes. En lugar de eso, quieres poder buscar un paquete en un repositorio y descargarlo e instalarlo con una interfaz de línea de comandos.
Solución
Utiliza Helm. Helm consiste en una CLI del lado del cliente llamada helm y se utiliza para buscar e implementar gráficos en un clúster Kubernetes.
Puedes descargar Helm desde la página de versiones de GitHub y mover el binario helm a tu $PATH. Por ejemplo, en macOS (Intel), para la versión v3.12.3, haz esto:
$ wget https://get.helm.sh/helm-v3.12.3-darwin-amd64.tar.gz $ tar -xvf helm-v3.12.3-darwin-amd64.tar.gz $ sudo mv ...
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