Скачать или смотреть 05 kubernetes deploying a dynamic nfs provisioner

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okay, let's dive into deploying a dynamic nfs provisioner in kubernetes. this will enable you to dynamically provision persistent volumes (pvs) backed by an nfs server whenever a persistent volume claim (pvc) is created. this is a powerful way to manage storage in your kubernetes cluster, especially when you need shared storage across multiple pods.

*prerequisites:*

1. *a kubernetes cluster:* you need a working kubernetes cluster (e.g., minikube, kind, a cloud-managed kubernetes service like gke, eks, or aks).
2. *an nfs server:* you need access to an nfs server. this can be running on a separate vm, on a cloud platform as a managed nfs service, or even on a node within your kubernetes cluster (not recommended for production). you'll need the nfs server's ip address and the export path it will serve. ensure your kubernetes nodes can reach the nfs server.
3. *`kubectl`:* the kubernetes command-line tool should be configured to connect to your cluster.
4. *helm (optional but recommended):* using helm simplifies deployment and management of the nfs provisioner. if you don't have helm, install it:


if you have helm v2, it's highly recommended to upgrade to v3, as tiller is removed in v3.

*overview of steps:*

1. *install the nfs subdir external provisioner:* this is the core component that watches for pvcs and dynamically provisions pvs on your nfs server. we'll use helm for this, but manual deployment via yaml manifests is also possible.
2. *configure the nfs subdir external provisioner:* you'll configure it with the nfs server details (ip address and export path).
3. *create a storageclass:* this defines how the pvs will be provisioned, allowing users to request storage through pvcs.
4. *create a persistent volume claim (pvc):* this is the request for storage from a user or application.
5. *deploy a pod that uses the pvc:* the pod will use the dynamically provisioned pv for storage.
6. *verification:* we'll verify tha ...

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