[Gluster-users] Gluster inside containers

[Kaushal M]

On Wed, Aug 17, 2016 at 5:18 PM, Humble Devassy Chirammal
<humble.devassy at gmail.com> wrote:
> Hi Zach,
>
>>
> Option 1. 3 Gluster nodes, one large volume, divided up into subdirs (1 for
> each website), mounting the respective subdirs into their containers & using
> ACLs & LXD’s u/g id maps (mixed feelings about security here)
>>
>
> Which version of GlusterFS is in use here ? because gluster sub directory
> support patch is available in upstream, however  I dont think its in a good
> state to consume. Yeah, if the subdirectory mount is performed we have to
> take enough care to make sure the isolation of the mounts between multiple
> user, ie security is a concern here.

A correction here. Sub-directory mount support hasn't been merged yet.
It's still a patch under review.

>
>>
> Option 2. 3 Gluster nodes, website-specifc bricks on each, creating
> website-specific volumes, then mounting those respective volumes into their
> containers. Example:
>     gnode-1
>     - /data/website1/brick1
>     - /data/website2/brick1
>     gnode-2
>     - /data/website1/brick2
>     - /data/website2/brick2
>     gnode-3
>     - /data/website1/brick3
>     - /data/website2/brick3
>>
>
> Yes, this looks to be an ideal or more consumable approach to me.
>
>>
>
> Option 3. 3 Gluster nodes, every website get’s their own mini “Gluster
> Cluster” via LXD containers on the Gluster nodes. Example:
>     gnode-1
>     - gcontainer-website1
>       - /data/brick1
>     - gcontainer-website2
>       - /data/brick1
>     gnode-2
>     - gcontainer-website1
>       - /data/brick2
>     - gcontainer-website2
>       - /data/brick2
>     gnode-3
>     - gcontainer-website1
>       - /data/brick3
>     - gcontainer-website2
>       - /data/brick3
>>
>
> This is very difficult or complex to achieve and maintain.
>
> In short,  I would vote for option 2.
>
> Also for safer side,  you may need take snapshot of the volumes or configure
> a backup for these volumes to avoid single point of failure.
>
> Please let me know if you need any details.
>
> --Humble
>
>
>
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