mysql chown,不允许Kubernetes mysql chown操作

I am currently experimenting with Kubernetes and have installed a small cluster on ESX infra I had running here locally. I installed two slave nodes with a master node using Project Atomic with Fedora. The cluster is all installed fine and seems to be running. However I first want to get a MySQL container up and running, but no matter what I try i cannot get it to run.

apiVersion: v1

kind: Pod

metadata:

name: mysql

labels:

name: mysql

spec:

containers:

- resources:

limits :

cpu: 0.5

image: mysql:5.6

name: mysql

env:

- name: MYSQL_ROOT_PASSWORD

value: myPassw0rd

ports:

- containerPort: 3306

name: mysql

volumeMounts:

- name: mysql-persistent-storage

mountPath: /var/lib/mysql

volumes:

- name: mysql-persistent-storage

nfs:

server: 10.0.0.2

path: "/export/mysql"

For the volume I already tried all kinds of solutions, I tried using persistent volume with and without claim. I tried using host volume and emptyDir, but I always end up with this error when the container starts:

chown: changing ownership of '/var/lib/mysql/': Operation not permitted

I must be doing something stupid, but no idea what to do here?

解决方案

Ok it seems I can answer my own question, the problem was lying in the NFS share that was being used as the persistent volume. I had it set to 'squash_all' in the export but it needs to have a 'no_root_squash' to allow root in case of docker container to chown on the nfs bound volume.