Refer https://devopscube.com/setup-jenkins-on-kubernetes-cluster/ for step by step process to use these manifests.
https://weng-albert.medium.com/storageclass-local-path-provider-en-961eca8699d4
el local-path-storage se ha de crear después de instalar el cluster. Crea la storageclass también.
para que Ingress funcione en Rancher Desktop, hay que quitar Traefik e instalar Nginx.
https://docs.rancherdesktop.io/how-to-guides/setup-NGINX-Ingress-Controller/