[Nix-dev] Sharing Nix store between systems

[Shea Levy]

Hi Tyson,

Looks like a good start! I’ve left some comments on the commits.

~Shea

> On May 15, 2015, at 5:39 PM, Tyson Whitehead <twhitehead at gmail.com> wrote:
> 
> On April 29, 2015 14:03:08 Tyson Whitehead wrote:
>> I'm looking to setup a shared nix store for our HPC clusters.  Googling for a shared store only gives a brief discussion back at the end of 2011
>> 
>> http://lists.science.uu.nl/pipermail/nix-dev/2011-December/007381.html
>> 
>> My current plan of attack (informed by that thread) is to setup a sever (hereafter the "nix server") running the nix daemon that exports
>> 
>> - a read-only version of the store
>> - a read/write version of the gcroots and profiles directories
>> 
>> Machines that mount the store and gcroots/profiles would then be set to forward the nix daemon socket to the nix server.
> 
> Got this working by the way on our HPC clusters.  Ended up
> 
> 1 - adding socket code to remote-store.cc to initiate connections, and
> 2 - using systemd socket passing with nix-env to listen on a port
> 
> I've pushed a temporary branch to a github fork
> 
> https://github.com/NixOS/nix/compare/master...twhitehead:remote
> 
> I would like to get this officially supported, so my intent is to get some feedback before doing a pull request.
> 
> How would you like this to work?  Something enabled by configure?  Always supported out of the box?  Should I open an issue?
> 
> Thanks!  -Tyson
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