# 实现K8S配置NFS动态卷存储

作为一名经验丰富的开发者，我将帮助你学习如何在Kubernetes（K8S）中配置NFS动态卷存储。这样，你就可以轻松地管理存储资源并在应用程序中使用它们。

## 步骤概述

下表展示了实现K8S配置NFS动态卷存储的流程：

| 步骤 | 描述 |
|---|---|
| 步骤一 | 配置NFS服务器 |
| 步骤二 | 部署NFS客户端 Provisioner |
| 步骤三 | 创建存储类并测试 |

## 具体步骤

### 步骤一：配置NFS服务器

1. 在NFS服务器上安装NFS服务器软件，例如`nfs-kernel-server`。
2. 配置NFS共享目录，例如`/nfsshare`。

### 步骤二：部署NFS客户端 Provisioner

1. 部署NFS客户端 Provisioner，用于动态创建和发布NFS存储卷。

```yaml
apiVersion: v1
kind: ServiceAccount
metadata:
name: nfs-client-provisioner
---
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1
metadata:
name: nfs-client-provisioner-runner
rules:
- apiGroups: [""]
resources: ["persistentvolumes"]
verbs: ["get", "list", "watch", "create", "delete"]
- apiGroups: [""]
resources: ["persistentvolumeclaims"]
verbs: ["get", "list", "watch", "update"]
- apiGroups: ["storage.k8s.io"]
resources: ["storageclasses"]
verbs: ["get", "list", "watch"]
- apiGroups: [""]
resources: ["events"]
verbs: ["create", "patch"]
---
kind: ClusterRoleBinding
apiVersion: rbac.authorization.k8s.io/v1
metadata:
name: run-nfs-client-provisioner
subjects:
- kind: ServiceAccount
name: nfs-client-provisioner
namespace: default
roleRef:
kind: ClusterRole
name: nfs-client-provisioner-runner
apiGroup: rbac.authorization.k8s.io
---
apiVersion: v1
kind: Service
metadata:
name: nfs-client-provisioner
spec:
ports:
- name: http
port: 80
selector:
app: nfs-client-provisioner
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: nfs-client-provisioner
spec:
replicas: 1
selector:
matchLabels:
app: nfs-client-provisioner
template:
metadata:
labels:
app: nfs-client-provisioner
spec:
serviceAccountName: nfs-client-provisioner
containers:
- name: nfs-client-provisioner
image: quay.io/external_storage/nfs-client-provisioner:latest
volumeMounts:
- name: nfs-client-root
mountPath: /persistentvolumes
env:
- name: PROVISIONER_NAME
value: example.com/nfs
volumes:
- name: nfs-client-root
nfs:
server: nfs-server-ip
path: /nfsshare
```

### 步骤三：创建存储类并测试

1. 创建NFS存储类，指定Provisioner和NFS服务器地址。

```yaml
apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
name: nfs-client
provisioner: example.com/nfs
parameters:
archiveOnDelete: "false"
```

2. 创建使用NFS存储类的持久卷声明。

```yaml
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
name: nfs-pvc
spec:
accessModes:
- ReadWriteMany
storageClassName: nfs-client
resources:
requests:
storage: 1Gi
```

现在你已经学会了如何在Kubernetes中配置NFS动态卷存储。通过以上步骤，你可以轻松地管理存储资源，让你的应用程序更加灵活和可靠。如果有任何疑问，欢迎随时向我提问。祝学习顺利！