[Bug 1661636] Re: cinder in LXD/LXC Container doesn't support NFS mount

Fairbanks. 1661636 at bugs.launchpad.net
Mon Feb 6 12:02:30 UTC 2017


Oke,

I have deployed a cinder charm to a lxd container.
I manually installed nfs-common to add nfs mount feature.

When i want to mount an NFS folder within the container i get the following message from mount using -v:
---
mount.nfs: timeout set for Mon Feb  6 11:59:12 2017
mount.nfs: trying text-based options 'vers=3,rsize=262144,wsize=262144,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,mountaddr=10.42.10.10,mountvers=3,mountport=2061,mountproto=tcp,lookupcache=pos,local_lock=none,addr=10.42.10.10'
mount.nfs: prog 100003, trying vers=3, prot=6
mount.nfs: trying 10.42.10.10 prog 100003 vers 3 prot TCP port 2049
mount.nfs: mount(2): Permission denied
mount.nfs: access denied by server while mounting 10.42.10.10:/tintri/openstack
---

On the host in kern.log i see the following line appear when executing the mount command:
---
Feb  6 11:57:13 OS1 kernel: [2748689.107067] audit: type=1400 audit(1486382233.005:1012): apparmor="DENIED" operation="mount" info="failed flags match" error=-13 profile="lxd-juju-309867-0-lxd-15_</var/lib/lxd>" name="/mnt/test/" pid=2006330 comm="mount.nfs" fstype="nfs" srcname="10.42.10.10:/tintri/openstack" flags="rw, relatime"
---

Hope this will be enough.
So the basic idea would be to just deploy any charm within an LXD and try to mount a NFS share.

Some info:
OS: Ubuntu 16.04.1 (Latest updates on Host and LXD)
LXD: v2.0.8

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https://bugs.launchpad.net/bugs/1661636

Title:
  cinder in LXD/LXC Container doesn't support NFS mount

Status in cinder package in Juju Charms Collection:
  Incomplete

Bug description:
  Hello there,

  When using cinder within an LXD or LXC Container it isn't possible to mount an NFS share.
  This is blocked by Apparmor. It will raise an error that mount nfs is blocked.

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