1.emptyDir

pod删除的时候,volume也就不存在了，生命周期和pod同样

apiVersion: v1
kind: Pod
metadata:name: redis-pod
spec:containers:- image: redisname: redisvolumeMounts:- mountPath: /cachename: cache-volumevolumes:- name: cache-volumeemptyDir: {}

2.hostpath

宿主机上面的目录，一旦宿主机宕机文件就不存在，不是分布式的

apiVersion: v1
kind: Pod
metadata:name: test-host-pd
spec:containers:- image: nginxname: test-containervolumeMounts:- mountPath: /tmp-testname: test-volumevolumes:- name: test-volumehostPath:path: /opt/data/type: Directory

3.nfs分布式的但是 nfs本身为单电

192.168.56.12 部署了nfsserver端   所有node节点需要安装 nfs-utils
[root@k8s-node2 nginx]# cat /etc/exports
/opt/nginx  192.168.56.0/24(rw,no_root_squash)
[root@k8s-node2 nginx]#
[root@k8s-node2 nginx]# cat /opt/nginx/index.html
nginx-index

apiVersion: extensions/v1beta1
kind: Deployment
metadata:name: nginx-deployment
spec:replicas: 2template:metadata:labels:app: nginx-nfsspec:containers:- name: nginx-nfsimage: nginxvolumeMounts:- name: nginxdatamountPath: /usr/share/nginx/htmlports:- containerPort: 80volumes:- name: nginxdatanfs:server: 192.168.56.12path: /opt/nginx

kubectl create -f nginx.yaml
kubectl   expose  deployment   nginx-deployment    --port=90 --type=NodePort  --target-port=80   --name=nginx-service-nfs
kubectl get svc

4.glusterfs

192.168.56.11 192.168.56.12安装glusterfs制作复制卷yum install centos-release-gluster  -yyum install glusterfs-server -ysystemctl start   glusterfsdsystemctl start    glusterd.servicesystemctl enable   glusterfsd.servicesystemctl enable   glusterd.servicegluster peer  probe  192.168.56.12 #在192.168.56.11上面
gluster volume create nginx-volume replica 2 192.168.56.11:/opt/data   192.168.56.12:/opt/data  forceglusterfs   volume start  nginx-volume
gluster volume info nginx-volume

[root@k8s-node2 data]# cat /opt/data/index.html
glusterfs-nginx-index
[root@k8s-node2 data]#
客户端安装192.168.56.10:yum install glusterfs-client -y
mount  -t  glusterfs 192.168.56.12:/nginx-volume   /mnt/glusterfs/  ##注意挂载写复制卷
Filesystem                   Size  Used Avail Use% Mounted on
/dev/mapper/centos-root       39G  3.4G   35G   9% /
devtmpfs                     478M     0  478M   0% /dev
tmpfs                        489M     0  489M   0% /dev/shm
tmpfs                        489M   50M  439M  11% /run
tmpfs                        489M     0  489M   0% /sys/fs/cgroup
/dev/sda1                   1014M  143M  872M  15% /boot
/dev/mapper/centos-home       19G   33M   19G   1% /home
tmpfs                         98M     0   98M   0% /run/user/0
192.168.56.12:/nginx-volume   39G  3.9G   35G  11% /mnt/glusterfs
[root@k8s-master glusterfs]#

创建endpoint   kubectl create -f  ed.yaml

{"kind": "Endpoints","apiVersion": "v1","metadata": {"name": "glusterfs-cluster"},"subsets": [{"addresses": [{"ip": "192.168.56.11"}],"ports": [{"port": 1}]},{"addresses": [{"ip": "192.168.56.12"}],"ports": [{"port": 1}]}]
}

  kubectl create -f  service.yaml{"kind": "Service","apiVersion": "v1","metadata": {"name": "glusterfs-cluster"},"spec": {"ports": [{"port": 1}]}
}

apiVersion: extensions/v1beta1
kind: Deployment
metadata:name: nginx-deployment-glusterfs
spec:replicas: 3template:metadata:labels:app: nginx-gfspec:containers:- name: nginx-gfimage: nginxvolumeMounts:- name: glusterfsvolmountPath: /usr/share/nginx/htmlports:- containerPort: 80volumes:- name: glusterfsvolglusterfs:endpoints: glusterfs-clusterpath: nginx-volumereadOnly: false---apiVersion: v1
kind: Service
metadata:name: nginx-service-gf
spec:selector:app: nginx-gfports:- name: httpport: 80protocol: TCPtargetPort: 80type: NodePort

[root@k8s-master volume]# kubectl  get  svc -o wide
NAME                TYPE        CLUSTER-IP     EXTERNAL-IP   PORT(S)          AGE       SELECTOR
glusterfs-cluster   ClusterIP   10.10.10.42    <none>        1/TCP            16m       <none>
httpd               ClusterIP   10.10.10.113   <none>        80/TCP           6d        run=httpd
kubernetes          ClusterIP   10.10.10.1     <none>        443/TCP          14d       <none>
my-service          ClusterIP   10.10.10.120   <none>        80/TCP,443/TCP   7d        app=nginx
nginx               ClusterIP   10.10.10.164   <none>        80/TCP           6d        run=nginx
nginx-service       NodePort    10.10.10.84    <none>        88:36741/TCP     14d       run=nginx
nginx-service-gf    NodePort    10.10.10.23    <none>        80:34973/TCP     13m       app=nginx-gf

https://github.com/kubernetes/kubernetes/tree/8fd414537b5143ab039cb910590237cabf4af783/examples/volumes/glusterfs

6.ceph