Nfs client mount not permitted

[buttle (Chris)]

Hi,

I’ve got and nfs server in a container, and a client in another container.

After some problems install nfs on the container I read this

Nfs-kernel-server inside a lxd container

Hi, I’m a happy lxd user, thank you for all the awesome work. We’ve migrated 90% of our stuff into containers with great results and one of the things left to do is to move our local nfs server. I found this bug detailing how to get that going, however I wanted to verify if the expectation is that everything will work as it would on a bare host. Is that the case? I’m not quite clear on the details of privileged Vs unprivileged (while not mentioned in the bug, it seems indeed n-k-s requires a pr…

So I setup up the nfs server container like this

printf "mount fstype=rpc_pipefs,\nmount fstype=nfsd," |  lxc config set nfs raw.apparmor -
lxc config set nfs security.privileged true

/etc/exports look like this

/opt/data   *(rw,sync,no_subtree_check,no_root_squash,fsid=root)

And on the nfs server I can mount it

mount localhost:/opt/data /mnt

But from another container with the nfs client installed it doesn’t work

mount nfs_server:/opt/data /mnt/test/
mount.nfs: Operation not permitted

I’ve also tried with the client container as privileged, but it doesn’t work either…

Does anybody have any suggestions?

Cheers.

[buttle (Chris)]

@buttle

lxc config set nfs security.privileged true

Ok, I set security.privileged true on the client container too. Now it works.