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k8s存储类-storageclass部署

news 2025/8/22 15:49:06

一、部署

1、在k8s集群外部署一台nfs存储主机

2、在k8s集群所有主机中部署nfs-utils

3、配置nfs主机上的共享目录

4、启动nfs

5、查看共享目录

6、创建运行nfs-provisioner需要的sa账号

7、安装nfs-provisioner存储制备器

8、创建storageclass存储类

9、创建pvc，通过storageclass动态生成pv

10、创建pod，挂载storageclass动态生成的pvc：storage-pvc

apiVersion: v1kind: Podmetadata: name: read-pod1 namespace: newnfsspec: containers: - name: nginx image: nginx imagePullPolicy: IfNotPresent volumeMounts: - name: nginx-html mountPath: /usr/share/nginx/html volumes: - name: nginx-html persistentVolumeClaim: claimName: storage-pvc 编辑二、验证是否挂载成功

1、到nfs主机共享目录中创建index.html文件

2、在k8s集群中访问read-pod1的IP

3、多个pod可以共同挂载一个nfs共享目录，实现目录共享

一、nfs主机端部署

1、在k8s集群外部署一台nfs存储主机

2、在k8s集群所有主机中部署nfs-utils

yum install -y nfs-utils

3、配置nfs主机上的共享目录

vim /etc/exports

/data 192.168.33.0/24(rw,sync,no_root_squash,no_subtree_check)

4、启动nfs主机上的nfs

systemctl enable --now nfs

5、查看共享目录

shoumount -e

二、k8s集群master节点部署

1、创建运行nfs-provisioner需要的sa账号

apiVersion: v1
kind: Namespace
metadata:
name: newnfs
---
apiVersion: v1
kind: ServiceAccount
metadata:
name: nfs-client-provisioner
namespace: newnfs
---
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", "update", "patch"]
---
kind: ClusterRoleBinding
apiVersion: rbac.authorization.k8s.io/v1
metadata:
name: run-nfs-client-provisioner
subjects:
- kind: ServiceAccount
name: nfs-client-provisioner
namespace: newnfs
roleRef:
kind: ClusterRole
name: nfs-client-provisioner-runner
apiGroup: rbac.authorization.k8s.io
---
kind: Role
apiVersion: rbac.authorization.k8s.io/v1
metadata:
name: leader-locking-nfs-client-provisioner
namespace: newnfs
rules:
- apiGroups: [""]
resources: ["endpoints"]
verbs: ["get", "list", "watch", "create", "update", "patch"]
---
kind: RoleBinding
apiVersion: rbac.authorization.k8s.io/v1
metadata:
name: leader-locking-nfs-client-provisioner
namespace: newnfs
subjects:
- kind: ServiceAccount
name: nfs-client-provisioner
namespace: newnfs
roleRef:
kind: Role
name: leader-locking-nfs-client-provisioner
apiGroup: rbac.authorization.k8s.io

2、安装nfs-provisioner存储制备器

kind: Deployment
apiVersion: apps/v1
metadata:
name: nfs-client-provisioner
namespace: newnfs
spec:
replicas: 1
selector:
matchLabels:
app: nfs-client-provisioner
strategy:
type: Recreate #设置升级策略为删除再创建(默认为滚动更新)
template:
metadata:
labels:
app: nfs-client-provisioner
spec:
serviceAccountName: nfs-client-provisioner #上一步创建的ServiceAccount名称
containers:
- name: nfs-client-provisioner
image: registry.cn-beijing.aliyuncs.com/mydlq/nfs-subdir-external-provisioner:v4.0.0
imagePullPolicy: IfNotPresent
volumeMounts:
- name: nfs-client-root
mountPath: /persistentvolumes
env:
- name: PROVISIONER_NAME # Provisioner的名称,以后设置的storageclass要和这个保持一致
value: storage-nfs
- name: NFS_SERVER # NFS服务器地址,需和valumes参数中配置的保持一致
value: 192.168.33.200
- name: NFS_PATH # NFS服务器数据存储目录,需和volumes参数中配置的保持一致
value: /data
- name: ENABLE_LEADER_ELECTION
value: "true"
volumes:
- name: nfs-client-root
nfs:
server: 192.168.33.200 # NFS服务器地址
path: /data # NFS共享目录

3、创建storageclass存储类

apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
namespace: newnfs
name: nfs-storage
annotations:
storageclass.kubernetes.io/is-default-class: "false" ## 是否设置为默认的storageclass
provisioner: storage-nfs ## 动态卷分配者名称，必须和上面创建的deploy中环境变量“PROVISIONER_NAME”变量值一致
parameters:
archiveOnDelete: "true" ## 设置为"false"时删除PVC不会保留数据,"true"则保留数据
mountOptions:
- hard ## 指定为硬挂载方式
- nfsvers=4 ## 指定NFS版本,这个需要根据NFS Server版本号设置（nfsstat查看）

4、创建pvc，通过storageclass动态生成pv

kind: PersistentVolumeClaim
apiVersion: v1
metadata:
name: storage-pvc
namespace: newnfs
spec:
storageClassName: nfs-storage ## 需要与上面创建的storageclass的名称一致
accessModes:
- ReadWriteOnce
resources:
requests:
storage: 10Mi

5、创建pod，挂载storageclass动态生成的pvc：storage-pvc

apiVersion: v1
kind: Pod
metadata:
name: read-pod1
namespace: newnfs
spec:
containers:
- name: nginx
image: nginx
imagePullPolicy: IfNotPresent
volumeMounts:
- name: nginx-html
mountPath: /usr/share/nginx/html
volumes:
- name: nginx-html
persistentVolumeClaim:
claimName: storage-pvc