[lxc-users] Kubernetes Storage Provisioning using LXD

[Jared Folkins]

FWIW, it is worth keeping your eye on this github issue. Personally I'd
love *full* support for LXD in K8s.

https://github.com/kubernetes/kubernetes/issues/6862



On Thu, Feb 16, 2017 at 12:11 PM, Adam Stokes <adam.stokes at canonical.com>
wrote:

> Cross posting to juju lists. It is my understanding that if you add ceph
> units to your juju environment or setup an NFS export that kubernetes can
> make use of both of those. Someone from the containers team would know more.
>
>
> On Thu, Feb 16, 2017 at 3:08 PM Eric <naisanza at gmail.com> wrote:
>
>> That's is what I've also been trying to do
>>
>> Kubernetes has a list of supported persistent volume types, of which the
>> only one's that aren't cloud-based that I've tried are NFS, CephFS,
>> Glusterfs, and HostPath
>>
>> https://kubernetes.io/docs/user-guide/persistent-volumes/
>> #types-of-persistent-volumes
>>
>> With LXC + ZFS you can't:
>>
>> - provide a raw block device (/dev/sad) to heketi, or a loopback device
>> (/dev/loop0). so glusterfs is out of the picture (
>> https://github.com/heketi/heketi/issues/665)
>> - cephfs is like glusterfs, so cephfs is out
>> - NFS requires kernel modules, so nfs is out
>> - HostPath doesn't work over multiple nodes
>>
>> So your only option is to use KVM
>>
>> I use Proxmox. I knew LXC/LXD wasn't going to be able to fulfill what I
>> needed to do on a single server, so I looked for a hypervisor that had a
>> polished UI for creating both LXC and KVM VM
>>
>> I'm still going to go with glusterfs, which will also need heketi, and
>> will be running it in a fedora kvm. And the using it as a persistent volume
>> for kubernetes
>>
>>
>>
>>
>> On Wed, Feb 15, 2017 at 4:16 AM, Butch Landingin <butchland at gmail.com>
>> wrote:
>>
>> Hi all,
>>
>> I've been trying out Canonical Kubernetes via conjure-up and juju charms
>> on
>> a local LXD cluster. Following the tutorials, I've set up the cluster
>> running on lxd with a zfs file system.
>>
>> Everything's been great and I've pretty much exhausted the tutorials
>> (running microbot, etc).
>>
>> I'm now at the point where I want to try provisioning some persistent
>> volumes or even trying
>> dynamic storage allocation.
>>
>> By this time, I'm 99 percent sure the answer is no (and I've searched
>> extensively) ,
>> but is there anyway to create Kubernetes persistent volumes on a multi
>> node set up (not using hostpath)
>> on a local LXD cluster?
>>
>> If there isn't,  does Canonical have this in their roadmap?
>>
>> Best regards,
>> Butch
>>
>>
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>
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