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实验目标

进行存储共享实验，使用nfs的技术方案进行跨namespace的存储共享

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一、环境准备

• 单点k8s一套：192.168.XX.5
• nfs云主机一台：192.168.XX.62
• nfs目录：192.168.XX.62:/shared/

二、nfs环境的部署及连通性验证

nfs部署链接：https://blog.csdn.net/baidu_35848778/article/details/126933785

在k8s节点(192.168.XX.5)验证nfs-server的连通性

showmount -e 192.168.XX.62
# 输出
Export list for 192.168.XX.62:
/shared 192.168.XX.0/24

三、yaml文件的整理

1. pv文件

testpv1.yaml

apiVersion: v1
kind: PersistentVolume
metadata:name: nfs-pv1-namelabels:type: local
spec:storageClassName: nfs-pv1-sccapacity:storage: 10GiaccessModes:- ReadWriteManynfs:server: 192.168.XX.62path: /shared/

testpv2.yaml

apiVersion: v1
kind: PersistentVolume
metadata:name: nfs-pv2-namelabels:type: local
spec:storageClassName: nfs-pv2-sccapacity:storage: 10GiaccessModes:- ReadWriteManynfs:server: 192.168.XX.62path: /shared/

2.pvc文件

pv1-pvc1.yaml

kind: PersistentVolumeClaim
apiVersion: v1
metadata:name: pv1-pvc1namespace: default
spec:volumeName: nfs-pv1-nameaccessModes:- ReadWriteManyresources:requests:storage: 1GistorageClassName: nfs-pv1-sc

pv2-pvc1.yaml

kind: PersistentVolumeClaim
apiVersion: v1
metadata:name: pv2-pvc1namespace: slw-mariadb
spec:volumeName: nfs-pv2-nameaccessModes:- ReadWriteManyresources:requests:storage: 1GistorageClassName: nfs-pv2-sc

3.pod文件

pod1.yaml

apiVersion: v1
kind: Pod
metadata:name: minio-1namespace: default
spec:containers:- name: minioimage: minio:RELEASE.2022-12-07T00-56-37Zenv:- name: MINIO_ACCESS_KEYvalue: "admin"- name: MINIO_SECRET_KEYvalue: "admin123456"- name : TZvalue: Asia/Shanghaicommand:- /bin/bash- -cargs: - minio server /data --console-address :9090  --address :9000# add port for podports:- containerPort: 9090name: console-address- containerPort: 9000name: addressvolumeMounts:- name: minio-data-one mountPath: /data  
#nodeSelector:#  kubernetes.io/hostname: kubealpha.localvolumes:- name: minio-data-onepersistentVolumeClaim:claimName: pv1-pvc1

pod2.yaml

apiVersion: v1
kind: Pod
metadata:name: minio-2namespace: slw-mariadb
spec:containers:- name: minioimage: harbor.ictnj.ac.cn:10002/library/minio:RELEASE.2022-12-07T00-56-37Zenv:- name: MINIO_ACCESS_KEYvalue: "admin"- name: MINIO_SECRET_KEYvalue: "admin123456"- name : TZvalue: Asia/Shanghaicommand:- /bin/bash- -cargs: - minio server /data --console-address :9090  --address :9000# add port for podports:- containerPort: 9090name: console-address- containerPort: 9000name: addressvolumeMounts:- name: minio-data-one mountPath: /data  
#nodeSelector:#  kubernetes.io/hostname: kubealpha.localvolumes:- name: minio-data-onepersistentVolumeClaim:claimName: pv2-pvc1

四、创建资源

1.创建PV

root@node1:/home# kubectl  create -f testpv1.yaml 
persistentvolume/nfs-pv1-name created
root@node1:/home# kubectl  create -f testpv2.yaml 
persistentvolume/nfs-pv2-name created
root@node1:/home# kubectl get pv -A
NAME                                       CAPACITY   ACCESS MODES   RECLAIM POLICY   STATUS      CLAIM                                                             STORAGECLASS          REASON   AGE
nfs-pv1-name                               10Gi       RWX            Retain           Available                                                                     nfs-pv1-sc                     6s
nfs-pv2-name                               10Gi       RWX            Retain           Available                                                                     nfs-pv2-sc                     3s

2.创建PVC

root@node1:/home# kubectl create -f pv1-pvc1.yaml 
persistentvolumeclaim/pv1-pvc1 created
root@node1:/home# kubectl create -f pv2-pvc1.yaml 
persistentvolumeclaim/pv2-pvc1 created
root@node1:/home# kubectl get pv -A
NAME                                       CAPACITY   ACCESS MODES   RECLAIM POLICY   STATUS     CLAIM                                                             STORAGECLASS          REASON   AGE
nfs-pv1-name                               10Gi       RWX            Retain           Bound      default/pv1-pvc1                                                  nfs-pv1-sc                     2m12s
nfs-pv2-name                               10Gi       RWX            Retain           Bound      slw-mariadb/pv2-pvc1                                              nfs-pv2-sc                     2m9s

3.创建pod

root@node1:/home# kubectl create -f pod1.yaml 
pod/minio-1 created
root@node1:/home# kubectl create -f pod2.yaml 
pod/minio-2 created
root@node1:/home# kubectl get pod -A |grep minio
default                        minio-1                                          1/1     Running   0             41s
slw-mariadb                    minio-2                                          1/1     Running   0             38s

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五、进行文件创建实验

在pod1中创建文件，在pod2及nfs-client端检查是否可以看到文件

1.minio-1中创建测试文件

2.minio-2进行验证

3.nfs-client端验证