Linux - K8S - 存储管理 - PV,PVC 

# PV PVC

# 创建PV
[13:34:33 root@master1 storage]#cat 05-storage-pv.yaml 
apiVersion: v1
kind: PersistentVolume
metadata:
  name: pv-test
spec:
  capacity:
    storage: 3Gi
  accessModes:
    - ReadWriteOnce
  nfs:
    path: /nfs-data
    server: 10.0.0.58

# 创建PVC
[13:34:36 root@master1 storage]#cat 06-storage-pvc.yaml 
apiVersion: v1	
kind: PersistentVolumeClaim
metadata:
  name: pvc-test
spec:
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 1Gi


# 创建nginx，用PVC挂载数据卷
[13:37:45 root@master1 storage]#cat 08-storage-nginx-pvc-subdir.yaml 
apiVersion: v1
kind: Pod
metadata:
  name: nginx-pod
spec:
  volumes:
    - name: nginx-volume
      persistentVolumeClaim:
        claimName: pvc-test
  containers:
    - name: nginx-pv
      image: 10.0.0.55:80/mykubernetes/nginx:1.21.3
      volumeMounts:
      - name: nginx-volume
        mountPath: "/usr/share/nginx/html"
        subPath: web1
---
apiVersion: v1
kind: Pod
metadata:
  name: nginx-flask
spec:
  volumes:
    - name: nginx-volume
      persistentVolumeClaim:
        claimName: pvc-test
  containers:
    - name: nginx-flask
      image: 10.0.0.55:80/mykubernetes/nginx:1.21.3
      volumeMounts:
      - name: nginx-volume
        mountPath: "/usr/share/nginx/html"
        subPath: web2


# 开始配置

[13:37:57 root@master1 storage]#kubectl apply -f 05-storage-pv.yaml 
persistentvolume/pv-test created
[13:38:29 root@master1 storage]#kubectl get pv
NAME      CAPACITY   ACCESS MODES   RECLAIM POLICY   STATUS      CLAIM   STORAGECLASS   REASON   AGE
pv-test   3Gi        RWO            Retain           Available                                   12s

# PVC自动绑定PV
[13:38:34 root@master1 storage]#kubectl apply -f 06-storage-pvc.yaml 
persistentvolumeclaim/pvc-test created
[13:38:52 root@master1 storage]#kubectl get pvc
NAME       STATUS   VOLUME    CAPACITY   ACCESS MODES   STORAGECLASS   AGE
pvc-test   Bound    pv-test   3Gi        RWO                           4s
[13:38:56 root@master1 storage]#kubectl get pv
NAME      CAPACITY   ACCESS MODES   RECLAIM POLICY   STATUS   CLAIM              STORAGECLASS   REASON   AGE
pv-test   3Gi        RWO            Retain           Bound    default/pvc-test                           37s


# 创建pod

[13:38:59 root@master1 storage]#kubectl apply -f 08-storage-nginx-pvc-subdir.yaml 
pod/nginx-pod created
pod/nginx-flask created
[13:43:27 root@master1 storage]#kubectl get pod -o wide
NAME          READY   STATUS    RESTARTS   AGE   IP            NODE               NOMINATED NODE   READINESS GATES
nginx-flask   1/1     Running   0          5s    10.244.3.4    node1.noisedu.cn   <none>           <none>
nginx-pod     1/1     Running   0          5s    10.244.4.13   node2.noisedu.cn   <none>           <none>

# 测试， 若未准备主页，会出现403错误
[13:43:32 root@master1 storage]#curl 10.244.3.4
<html>
<head><title>403 Forbidden</title></head>
<body>
<center><h1>403 Forbidden</h1></center>
<hr><center>nginx/1.21.4</center>
</body>
</html>


# 根据subpath在nfs主机准备主页，
[13:43:50 root@nfs web1]#echo 'web1 pv and pvc' > index.html
[13:44:04 root@nfs web1]#cd ..
[13:44:06 root@nfs nfs-data]#cd web2/
[13:44:08 root@nfs web2]#echo 'web2 pv and pvc' > index.html


# 再继续访问
[13:43:38 root@master1 storage]#curl 10.244.3.4
web2 pv and pvc
[13:44:21 root@master1 storage]#curl 10.244.4.13
web1 pv and pvc

　　

posted @ 2021-12-12 13:49  每天都在学习的自己  阅读(278)  评论(0)    收藏  举报