RFC on Cloud Images: Make /tmp a tmpfs

[Dustin Kirkland]

On Thu, Jan 14, 2016 at 12:56 PM, Oliver Grawert <ogra at ubuntu.com> wrote:
> hi,
> Am Mittwoch, den 13.01.2016, 23:00 +0100 schrieb Martin Pitt:
>> Ben Howard [2016-01-13 14:26 +0200]:
>> > On the Ubuntu Cloud Images, we have a request to make /tmp a tmpfs. The
>> > rationale, from the bug:
>> >  * Performance - much faster read/write access to data in /tmp
>> >  * Security - sensitive data would be cleared from memory on boot,
>> >    rather than written (leaked) to disk -- important for encryption
>> >    scenarios
>> >
>> > Since the Ubuntu Cloud Images are used by a wide number of users, I
>> > wanted to gather feedback and gather consensus on whether or not we
>> > should make this change.
>>
>> I really wish we would do this in general for new installs, at least
>> as the first thing after releasing 16.04 LTS.
>
> while i'm all for it, lets please have a check for RAM size in that
> code, you really dont want /tmp in ram on a low ram system with i.e.
> 64-128MB (thin client, embedded box or whatever) by default.

Totally agree!  The bug is updated :-)