[lxc-users] Maybe dir storage can be a good choice for me?

[Carl Lei]

Hello,

I’m planning to provide interactive development environment for our data analysts.  Containers will be created from bare base images with very few modifications, will run for a very long time (practically, forever), and will never be snapshotted; somehow a container is like a python venv.  I’m feeling that dir storage may be good enough for this case, but docs says it is “a last resort”; so does it have other shortcomings than bad performance on features I will never use?

[Serge E. Hallyn]

On Fri, Sep 04, 2020 at 10:45:19PM +0000, Carl Lei wrote:
> Hello,
> I’m planning to provide interactive development environment for our data analysts.  Containers will be created from bare base images with very few modifications, will run for a very long time (practically, forever), and will never be snapshotted; somehow a container is like a python venv.  I’m feeling that dir storage may be good enough for this case, but docs says it is “a last resort”; so does it have other shortcomings than bad performance on features I will never use?

last resort? I use dir for most of my containers.

[jjs - mainphrame]

I've also used dir storage for all lxc containers

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[Narcis Garcia]

I use 'dir' backend for most of VPS I create, because of simple free
space sharing at host.
Biggest disadvantage I see in current LXC versions is that I can't limit
disk space quota per container.

Note: I use unprivileged LXC containers without LXD in the host's Ext4
filesystem.
To separate privileges, I assign different subUID:subGID ranges per each
container, but I don't know how to use this to apply disk space quotas.

Narcis Garcia

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El 5/9/20 a les 0:45, Carl Lei ha escrit:

[Carl Lei]

Thank you, indeed I forgot about quota.  I use xfs in most cases, a project quota may be enough; but seems I would have to manage that manually somehow.

---

发件人: Narcis Garcia <debia...@actiu.net>
发送时间: 星期六, 九月 5, 2020 14:59
收件人: lxc-users
主题: Re: [lxc-users] Maybe dir storage can be a good choice for me?

 

[Narcis Garcia]

I don't know if answer from here is easy to manage:

https://github.com/lxc/lxcfs/issues/277

... and what is the path to implement for each container.

Narcis Garcia

__________
I'm using this dedicated address because personal addresses aren't
masked enough at this mail public archive. Public archive administrator
should fix this against automated addresses collectors.

El 5/9/20 a les 13:34, Carl Lei ha escrit:

> Thank you, indeed I forgot about quota.  I use xfs in most cases, a
> project quota may be enough; but seems I would have to manage that
> manually somehow.
>

> ------------------------------------------------------------------------
> *发件人:* Narcis Garcia <debia...@actiu.net>
> *发送时间:* 星期六, 九月 5, 2020 14:59
> *收件人:* lxc-users
> *主题:* Re: [lxc-users] Maybe dir storage can be a good choice for me?