K8S–持久卷(PersistentVolume)的用法

本文介绍: 本文介绍K8S的持久卷(PersistentVolume)的用法。

原文网址：K8S–持久卷(PersistentVolume)的用法-CSDN博客

本文介绍K8S的持久卷(PersistentVolume)的用法。

目标：用持久卷的方式将主机的磁盘与容器磁盘映射，安装nginx并运行。

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官网

https://kubernetes.io/zh-cn/docs/tasks/configure-pod-container/configure-persistent-volume-storage/

mkdir -p /work/devops/k8s/pv/mnt

cd /work/devops/k8s/pv/

apiVersion: v1
kind: PersistentVolume
metadata:
  name: tast-pv-volume
  labels:
    type: local
spec:
  storageClassName: manual
  capacity:
    storage: 3Gi
  accessModes:
    - ReadWriteOnce
  hostPath:
    path: "/work/devops/k8s/pv/mnt"

kubectl apply -f pv-volume.yaml

persistentvolume/tast-pv-volume created

kubectl get pv tast-pv-volume

NAME             CAPACITY   ACCESS MODES   RECLAIM POLICY   STATUS      CLAIM   STORAGECLASS   REASON   AGE
tast-pv-volume   3Gi        RWO            Retain           Available           manual                  6s

apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: tast-pv-claim
spec:
  storageClassName: manual
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 1Gi

kubectl apply -f pv-claim.yaml

persistentvolumeclaim/tast-pv-claim created

kubectl get pv tast-pv-volume

NAME             CAPACITY   ACCESS MODES   RECLAIM POLICY   STATUS   CLAIM                   STORAGECLASS   REASON   AGE
tast-pv-volume   3Gi        RWO            Retain           Bound    default/tast-pv-claim   manual                  33s

kubectl get pvc tast-pv-claim

NAME            STATUS   VOLUME           CAPACITY   ACCESS MODES   STORAGECLASS   AGE
tast-pv-claim   Bound    tast-pv-volume   3Gi        RWO            manual         13s

apiVersion: v1
kind: Pod
metadata:
  name: tast-pv-pod
spec:
  volumes:
    - name: tast-pv-storage
      persistentVolumeClaim:
        claimName: tast-pv-claim
  containers:
    - name: tast-pv-container
      image: nginx:latest
      ports:
        - containerPort: 80
          name: "nginx-80"
      volumeMounts:
        - mountPath: "/usr/share/nginx/html"
          name: tast-pv-storage

kubectl apply -f pv-pod.yaml

pod/tast-pv-pod created

kubectl get pods -A

kubectl exec -it tast-pv-pod -- bash

curl http://localhost/

<html>
<head><title>403 Forbidden</title></head>
<body>
<center><h1>403 Forbidden</h1></center>
<hr><center>nginx/1.21.5</center>
</body>
</html>

cd /work/devops/k8s/pv
kubectl delete -f pv-pod.yaml
kubectl delete -f pv-claim.yaml
kubectl delete -f pv-volume.yaml

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ks persistentvolume 持久

简介

准备工作

1.创建 PersistentVolume

2.创建 PersistentVolumeClaim

3.创建 Pod

4.访问测试

5.清理

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简介