Can't start when bind and NFS mouting for /var/lib/mysql container directory

[sadmin91]

Hello,

I try to setup this container on a raspberry.
On Docker host, I have mount an NFS share to /mnt/swarmData/labemilie-db and I could write on it.
I try to start a container with this command line :
docker container create --name labemilie-db --hostname labemilie-db --network labemilie-network -v /mnt/swarmData/labemilie-db:/var/lib/mysql --env MYSQL_ROOT_PASSWORD=bestPassword hypriot/rpi-mysql:arm-5.5
But I got this error :

181118 17:18:47 [Warning] Using unique option prefix key_buffer instead of key_buffer_size is deprecated and will be removed in a future release. Please use the full name instead.,
181118 17:18:47 [Note] mysqld (mysqld 5.5.60-0+deb7u1) starting as process 1 ...,
181118 17:18:47 [Warning] Using unique option prefix myisam-recover instead of myisam-recover-options is deprecated and will be removed in a future release. Please use the full name instead.,
181118 17:18:47 [Note] Plugin 'FEDERATED' is disabled.,
�mysqld: Can't find file: './mysql/plugin.frm' (errno: 13),
181118 17:18:47 [ERROR] Can't open the mysql.plugin table. Please run mysql_upgrade to create it.,
181118 17:18:47 InnoDB: The InnoDB memory heap is disabled,
181118 17:18:47 InnoDB: Mutexes and rw_locks use GCC atomic builtins,
181118 17:18:47 InnoDB: Compressed tables use zlib 1.2.7,
181118 17:18:47 InnoDB: Using Linux native AIO,
181118 17:18:47 InnoDB: Initializing buffer pool, size = 128.0M,
181118 17:18:47 InnoDB: Completed initialization of buffer pool,
181118 17:18:47  InnoDB: Operating system error number 13 in a file operation.,
InnoDB: The error means mysqld does not have the access rights to,
InnoDB: the directory.,
InnoDB: File name ./ibdata1,
InnoDB: File operation call: 'create'.,
InnoDB: Cannot continue operation.,

If I try to start the same container without the mounting of /var/lib/mysql, it's OK.
Could you help to solve this behaviour?

Thanks for your help.

[Fabian123333]

Please check if the underlaying nfs folder has the right permission / group, in my case chmod -R 755 <nfs/mysql_dir> fixed the problem