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: redis
name: redis
volumeMounts:
- mountPath: /cache
name: cache-volume
volumes:
- name: cache-volume
emptyDir: {}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: nginx name: test-container volumeMounts: - mountPath: /tmp-test name: test-volume volumes: - name: test-volume hostPath: 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: 2 template: metadata: labels: app: nginx-nfs spec: containers: - name: nginx-nfs image: nginx volumeMounts: - name: nginxdata mountPath: /usr/share/nginx/html ports: - containerPort: 80 volumes: - name: nginxdata nfs: server: 192.168.56.12 path: /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 -y yum install glusterfs-server -y systemctl start glusterfsd systemctl start glusterd.service systemctl enable glusterfsd.service systemctl enable glusterd.service gluster 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 force gluster volume start img-volume glusterfs 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: 3 template: metadata: labels: app: nginx-gf spec: containers: - name: nginx-gf image: nginx volumeMounts: - name: glusterfsvol mountPath: /usr/share/nginx/html ports: - containerPort: 80 volumes: - name: glusterfsvol glusterfs: endpoints: glusterfs-cluster path: nginx-volume readOnly: false --- apiVersion: v1 kind: Service metadata: name: nginx-service-gf spec: selector: app: nginx-gf ports: - name: http port: 80 protocol: TCP targetPort: 80 type: 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
