Storage(7%) [占比 7%]
kubernetes.io > Documentation > Reference > kubectl CLI > kubectl Cheat Sheet
kubernetes.io > Documentation > Concepts > Storage > Volumes
kubernetes.io > Documentation > Concepts > Storage > Types of Volumes
kubernetes.io > Documentation > Concepts > Storage > Persistent Volumes
kubernetes.io > Documentation > Concepts > Storage > Persistent Volume Claims
Understand Persistent Volumes and know how to create them [理解持久卷,并知道他们如何创建]
show
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
|
apiVersion: v1
kind: Pod
metadata:
name: persistent-pod
spec:
containers:
- name: alpine
image: alpine
command: ["/bin/sh", "-c"]
args: ["shuf -i 0-100 -n 1 >> /opt/number.out;"]
volumeMounts:
- mountPath: /opt
name: data-volume
volumes:
- name: data-volume
hostPath:
path: /data
type: Directory
|
1
2
3
4
5
6
7
8
9
10
11
|
apiVersion: v1
kind: PersistentVolume
metadata:
name pv-vol1
spec:
accessModes:
- ReadWriteOnce
capacity:
storage: 1Gi
hostPath:
path: /tmp/data
|
Understand access modes for volumes [理解卷的访问模式]
show - ReadWriteOnce: 卷可以由单个节点以读写的方式挂载 - ReadOnlyMany: 卷可以由许多节点以只读的方式挂载 - ReadWriteMany: 卷可以由许多节点以读写的方式挂载
Understand persistent volume claims primitive [理解持久卷声明的原语]
show
1
2
3
4
5
6
7
8
9
10
11
12
|
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
name: myclaim
spec:
accessModes:
- ReadWriteOnce
persistentVolumeReclaimPolicy: Retain
resources:
requests:
storage: 500Mi
|
持久卷回收策略: - Retain: 没有其他 Claim 可以 Claim 该卷 - Delete: 删除该卷 - Recycle: 删除数据,并使卷在次可用
1
2
|
$ kubectl get pvc
$ kubectl delete pvc myclaim
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
|
apiVersion: v1
kind: Pod
metadata:
name: webapp
spec:
containers:
- name: event-simulator
image: kodecloud/event-simulator
env:
- name: Log_Handler
value: file
volumeMounts:
- mountPath: /log
name: log-volume
volumes:
- name: log-vol
persistentVolumeClaim:
claimName: claim-log-1
|
Understand Kubernetes Storage object [理解 Kubernetes 存储对象]
show
Kubernetes 支持以下几种类型的卷: - awsElasticBlockStore - azureDisk - azureFile - cephfs - cinder - configMap - csi - downwardAPI - emptyDir - fc(fiber channel) - flexVolume - flocker - gcePersistentDisk - gitRepo(deprecated) - glusterfs
- hostPath - iscsi - local - nfs - persistentVolumeClaim - projected - portworxVolume - quobyte - rbd - scaleIO - secret - storageos - vsphereVolume
Know how to configure applications with persistent storage
show
- 创建持久性卷声明 - 在 Pod 中使用持久性卷声明
