[Nix-dev] Nix-Store sharing (with NFS + AUFS)?

[Arseniy Seroka]

You can't share over nfs because of sqlite. I've tried that myself and got 
no luck.

-- 
Sincerely,
Arseniy Seroka



On 16 January 2016 15:47:26 Matthias Beyer <mail at beyermatthias.de> wrote:

> On 15-01-2016 17:19:37, Rok Garbas wrote:
>> Quoting Matthias Beyer (2016-01-15 16:38:30)
>> > Hi,
>> >
>> > I'm currently thinking about the following problem:
>> >
>> > I want to share the /nix/store from one Master machine to several Slaves, but
>> > in a slightly different way than is currently possible with ssh / http:
>> >
>> > I want _one_ store which contains software, which then can be used by all the
>> > slaves (like you'd do with NFS).
>> >
>> > The Slave machine should still be able to install software with the package
>> > manager (nix) but only locally, not globally.
>> >
>> > So the Slave installs software to /nix/store locally, while /nix/store 
>> contains
>> > store entries which are hosted on the master.
>> >
>> > My first idea would be NFS + AUFS, but maybe there are nix-buildin
>> > possibilities?
>> >
>> >
>> > Use-Case: Provide a standard-set of software but allow each VM to install own
>> > software if needed, while keeping the amount of used storage as small as
>> > possible.
>> >
>> > With the solution I'm searching for, 100 VMs which only use the standard
>> > set on software would cause 1 % Storage-use (the packages are only phyiscally
>> > available on one machine: the master) of the amount of storage which would be
>> > needed with each VM installing the stuff.
>> >
>>
>> you could also just use ``services.nix-serve`` module
>>     https://github.com/NixOS/nixpkgs/blob/release-15.09/nixos/modules/services/networking/nix-serve.nix
>>
>> and change all slaves to point their binary cache to Master's url.
>>
>
> But wouldn't that cause the slaves to download the binaries from the
> master instead of using them directly from the masters harddisc?
>
> --
> Mit freundlichen Grüßen,
> Kind regards,
> Matthias Beyer
>
> Proudly sent with mutt.
> Happily signed with gnupg.
>
>
>
> ----------
> _______________________________________________
> nix-dev mailing list
> nix-dev at lists.science.uu.nl
> http://lists.science.uu.nl/mailman/listinfo/nix-dev
>