Re: sccache(-overlay) to speed up rust builds in poudriere

On 27/09/23 12:57, Guido Falsi wrote:
> On 27/09/23 12:54, Alexander Leidinger wrote:
>> Am 2023-09-27 10:56, schrieb Charlie Li:
>>
>>> In poudriere, apart from the fetch phase, network access is not 
>>> allowed by default so spawning a server that listens on an IP that 
>>> does not necessarily exist that clients, individual compiler 
>>> invocations, talk to isn't tenable. At the very least, one would need 
>>> to architect and implement Unix domain socket support there, which 
>>> they are happy to consider.
>>
>> How is poudriere preventing network access outside the fetch phase?
> 
> two (undocumented) guesses:
> 
> - removing interfaces (including lo0)
> - no routing
> 
> The only way to know for sure is reading the source code.
> 

https://github.com/freebsd/poudriere/blob/97404baad0c41f1007f971c4a19c89b7c594d89f/src/share/poudriere/common.sh#L691C59-L692C32


This looks like the relevant line of code, one has obviously to check 
all the involved variables definitions. This is a good starting point 
for this kind of research though.

-- 
Guido Falsi <madpilot@FreeBSD.org>