kubernetes4种存储：
kubernetes-configMap：存储配置文件
kubernetes-secret：加密信息（密码，用户名密码信息）
kubernetes-volume：给pod提供共享存储服务
kubernetes-persistent volume：PV，PVC持久卷
[root@k8s-master01 ~]# cd /usr/local/ aegis/ etc/ install-k8s/ libexec/ src/ bin/ games/ lib/ sbin/ cloudmonitor/ include/ lib64/ share/ [root@k8s-master01 ~]# cd /usr/local/install-k8s/ [root@k8s-master01 install-k8s]# ll total 8 drwxr-xr-x 2 root root 4096 Jul 10 00:50 core drwxr-xr-x 4 root root 4096 Jul 30 13:39 plugin [root@k8s-master01 install-k8s]# mkdir volume [root@k8s-master01 install-k8s]# cd volume/ [root@k8s-master01 volume]# ll total 0 [root@k8s-master01 volume]# vim em.yaml [root@k8s-master01 volume]# kubectl apply -f em.yaml pod/test-pd created [root@k8s-master01 volume]# kubectl get pod NAME READY STATUS RESTARTS AGE test-pd 1/1 Running 0 14s [root@k8s-master01 volume]# [root@k8s-master01 volume]# kubectl exec test-pd -it -- /bin/sh / # cd /cache/ /cache # ll /bin/sh: ll: not found /cache # ls /cache # [root@k8s-master01 volume]# vim em.yaml [root@k8s-master01 volume]# kubectl exec test-pd(pod名称) -c test-container(容器名称) -it -- /bin/sh
apiVersion: v1
kind: Pod
metadata:
name: test-pd
spec:
containers:
- image: hub.msjfkg.com/library/myapp:v1
name: test-container
volumeMounts:
- mountPath: /cache #不同的目录共享一个volume
name: cache-volume
- name: liveness-exec-container
image: busybox
imagePullPolicy: IfNotPresent
command: ["/bin/sh","-c","sleep 6000s"]
volumeMounts:
- mountPath: /test
name: cache-volume
volumes:
- name: cache-volume
emptyDir: {}
同一个pod下进入不同容器的方式：
[root@k8s-master01 volume]# kubectl exec test-pd -c test-container -it -- /bin/sh
hostPath
除了所需的path属性之外，用户还可以为hostPath卷指定type
apiVersion: v1
kind: Pod
metadata:
name: test-pd
spec:
containers:
- image: k8s.gcr.io/test-webserver
name: test-container
volumeMounts:
- mountPath: /test-pd
name: test-volume
volumes:
- name: test-volume
hostPath:
# directory location on host
path: /data
# this field is optional
type: Directory
容器中的/test-pd目录共享到本机的/data目录下