k8s基础中如何通过Volume保持数据持久

Kubernetes通过使用Volumes来保持数据持久。Volumes可以在容器之间共享，并且可以在容器重启后继续存在。

要使用Volumes，首先需要在Kubernetes集群中创建一个名为“my-vol”的Volume：

$ kubectl create -f my-vol.yaml

my-vol.yaml

apiVersion: v1

kind: PersistentVolume

metadata:

name: my-vol

spec:

capacity:

storage: 1Gi

accessModes:

- ReadWriteOnce

persistentVolumeReclaimPolicy: Recycle

nfs:

server: 10.0.0.1

path: /exports

Once the Volume has been created, it can be used by any number of Pods. To use the Volume, simply specify the name of the Volume in the Pod specification:

apiVersion: v1

kind: Pod

metadata:

name: my-pod

spec:

containers:

- name: my-container

image: busybox

command: ["sleep", "1000000"]

volumeMounts:

- name: my-vol

mountPath: /data

volumes:

- name: my-vol

persistentVolumeClaim:

claimName: my-vol

When the Pod is created, Kubernetes will automatically mount the Volume at the specified path inside the container. Any data written to the Volume will be persisted across container restarts.