quotas + jail ?

Ceri Davies ceri at submonkey.net
Wed Jan 11 08:59:05 PST 2006


On 11 Jan 2006, at 16:36, Marc G. Fournier wrote:

> On Wed, 11 Jan 2006, Michal Mertl wrote:
>
>> Vladimir Dvorak wrote:
>>> Hello,
>>>
>>> I have simple question - is possible to use quotas in jail(8)  
>>> environment ?
>>
>> Yes, it is, although with some restrictions.
>>
>> You have to enable the disk quotas from the host (have them listed in
>> host's /etc/fstab).
>>
>> To operate the quotas from inside the jail quotas have to be  
>> mentioned
>> in jail's /etc/fstab too (when using the file name of quota file  
>> it has
>> to be relative to jail's root). Repquota/edquota/quota work inside  
>> the
>> jail.
>>
>> You have to keep in mind that disk quotas are in fact a property of a
>> filesystem and are not related to jails at all. So if two jails  
>> share a
>> filesystem the disk quotas are shared too. If you have users with the
>> same UID in both the jails they will share the quota.
>
> How hard would it be to extend quotas so that its not just uid/gid  
> based, but directory?  ie. everything under /vm/jail1 falls under  
> this quota, regardless of uid/gid?

Given the lack of a unique name for files in UFS, quite difficult,  
I'd presume.

Ceri
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