[Gluster-users] Persistent storage for docker containers from a Gluster volume

[mabi]

Thank you very much Erekle for your links, they are all relevant to me and very interesting as as you mention I will be mostly serving a lot of rather smaller files from my containers.
I will first consider upgrading my gluserfs from 3.8 to 3.10 to take advantage of the small file performance improvements which is afaik newly available in 3.10.
Best regards,
M.

> -------- Original Message --------
> Subject: Re: [Gluster-users] Persistent storage for docker containers from a Gluster volume
> Local Time: June 29, 2017 12:34 PM
> UTC Time: June 29, 2017 10:34 AM
> From: erekle.magradze at recogizer.de
> To: mabi at protonmail.ch, gluster-users at gluster.org
>
> Hi,
>
> glusterFS is working fine for large files (in most of the cases it's used for VM image store), with docker you'll generate bunch of small size files and if you want to have a good performance may be look in [1] and [2].
>
> Also two node replica is a bit dangerous in case of high load with small files there is a good risk of split brain situation, therefore think about arbiter functionality of gluster [3], I think if you'll apply recommendations from [1] and [2] and deploy arbiter volume.
>
> Cheers
>
> Erekle
>
> [1] http://blog.gluster.org/2016/10/gluster-tiering-and-small-file-performance/
>
> [2] https://access.redhat.com/documentation/en-US/Red_Hat_Storage/3/html/Administration_Guide/Small_File_Performance_Enhancements.html
>
> [3] http://events.linuxfoundation.org/sites/events/files/slides/glusterfs-arbiter-VAULT-2016.pdf
>
> On 29.06.2017 11:55, Raghavendra Talur wrote:
>
>> On 28-Jun-2017 5:49 PM, "mabi" <mabi at protonmail.ch> wrote:
>>
>>> Anyone?
>>>
>>>> -------- Original Message --------
>>>> Subject: Persistent storage for docker containers from a Gluster volume
>>>> Local Time: June 25, 2017 6:38 PM
>>>> UTC Time: June 25, 2017 4:38 PM
>>>> From: mabi at protonmail.ch
>>>> To: Gluster Users <gluster-users at gluster.org>
>>>> Hello,
>>>> I have a two node replica 3.8 GlusterFS cluster and am trying to find out the best way to use a GlusterFS volume as persistent storage for docker containers to store their data (e.g. web assets).
>>>> I was thinking that the simplest method would be to mount my GlusterFS volume for that purpose on all docker nodes using FUSE and then simply start containers which require persistent storage with a mount of bind type. For example here is how I would create my container requiring persistent storage:
>>>> docker service create --name testcontainer --mount type=bind,source=/mnt/gustervol/testcontainer,target=/mnt alpine
>>>> What do you think about that? Is this a good way? or is the even a better way?
>> If you are using kubernetes, then please have a look at
>> https://github.com/gluster/gluster-kubernetes
>> Otherwise, what you are suggesting works.
>> Raghavendra Talur
>>
>>>> Regards,
>>>> M.
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