Hi Renato, I'm no expert whatsoever here, but isn't NixOps doing this in a way? At least on my nixos deployed servers all stores are kept in sync, only the server-specific packages are unique for each machine. Don't ask me how it works, I can only confirm that it does ;-)
Just my 2 cents.. Kind regards, Erik On Fri, Jul 1, 2016, 23:16 Renato Alves <alves....@gmail.com> wrote: > Had a look at the links. The 2011 thread mentions problems that have > been addressed by either nix-daemon or remote-build nodes. > > There's also some references to socat but not much. Seems like > forwarding could indeed be a solution but from what I read elsewhere > it's a fragile setup and requires ssh-agent and passwordless keys. > > There's also some articles about using haproxy and nginx to proxy > sockets but it's all very much ad-hoc. I'm also not sure how this would > work given the security model of nix-daemon. > > The 2014 thread is also a good read but focused on using the cluster > infrastructure to compile things. I don't want to go down that road yet. > Perhaps in the future if necessary. > At the moment I'd be happy with having nix-env and nix-shell on all > machines. > > Is there currently any support for NIX_REMOTE specifying a connection to > a daemon on a different host? (i.e. literally REMOTE :) > > R > > > > On 01/07/16 22:34, Layus wrote: > > I never sait it was a good idea, just soemthing worth investigating. > > > > Now, this has been discussed on the ML already > > > > See for example > > [Nix-dev] Sharing the Nix store between systems > > <http://lists.science.uu.nl/pipermail/nix-dev/2011-December/007381.html> > /Rickard > > Nilsson > > /[Nix-dev] nix on compute cluster? > > <http://lists.science.uu.nl/pipermail/nix-dev/2014-October/014584.html> > //Andreas > > Herrmann > > > > //And more generally Google search on > > site:http://lists.science.uu.nl/pipermail/nix-dev/ :-). > > > > -- Layus. > > > > On 01/07/16 21:55, Renato Alves wrote: > >> I never tried it with sockets, only tcp ports. > >> > >> I need to move the socket to a different location. Currently it also > >> sits on NFS. I can play with symlinks making it point to a local disk. > >> > >> The entire setup sounds terribly hackish though. > >> > >> If anyone has better alternatives I'd love to hear them. > >> > >> Thanks, > >> R > >> > >> On 01/07/16 20:51, Layus wrote: > >>> Just one idea off the top of my head: Would it be possible to forward > >>> the unix socket of the daemon ? > >>> > >>> -- Layus ? > >>> > >>> On 01/07/16 15:10, Renato Alves wrote: > >>>> Hi everyone, > >>>> > >>>> > >>>> Recently I've been trying to setup nix on a multiple-machine shared > >>>> environment. At the moment I have one machine setup with nix-daemon > >>>> running from a store in a custom location (/shared/myuser/nix). This > >>>> location is shared via NFS with several other machines. This is all > >>>> still pretty new to me as I've only recently started using nix and > >>>> haven't used nixos yet. > >>>> > >>>> Before setting up nix-daemon I ran into some problems with database > >>>> corruption (sqlite) due to concurrent processes. With nix-daemon these > >>>> have gone away. > >>>> > >>>> One limitation that I identified recently is that on any of the other > >>>> machines that do not have nix-daemon running (but have read access to > >>>> the store) I can run commands from the store without problems but > >>>> cannot, for instance, use nix-shell. > >>>> So I thought of spawning a nix-daemon instance on those machines but > I'm > >>>> not sure what is the best way to set it up without risking DB > corruption > >>>> again. > >>>> > >>>> These are the requirements I'd like to meet: > >>>> * /shared/myuser/nix is shared across multiple machines with the same > >>>> architecture (x86_64-linux). > >>>> * All machines should be able to use nix-shell or any nix related > >>>> command, including requesting installation of packages. > >>>> * Only some machines are allowed to compile. Machines that are not > >>>> allowed should rely on something like remote-systems.conf to > distribute > >>>> work. > >>>> > >>>> Is this kind of setup currently possible with nix? If so, can someone > >>>> provide some guidance? > >>>> > >>>> > >>>> Thanks, > >>>> Renato > >>>> > >>>> > >>>> > >>>> _______________________________________________ > >>>> nix-dev mailing list > >>>> nix-dev@lists.science.uu.nl > >>>> http://lists.science.uu.nl/mailman/listinfo/nix-dev > >>> > >>> > >>> > >>> _______________________________________________ > >>> nix-dev mailing list > >>> nix-dev@lists.science.uu.nl > >>> http://lists.science.uu.nl/mailman/listinfo/nix-dev > >>> > >> > >> > >> _______________________________________________ > >> nix-dev mailing list > >> nix-dev@lists.science.uu.nl > >> http://lists.science.uu.nl/mailman/listinfo/nix-dev > > > > > > > > > > _______________________________________________ > > nix-dev mailing list > > nix-dev@lists.science.uu.nl > > http://lists.science.uu.nl/mailman/listinfo/nix-dev > > > > _______________________________________________ > nix-dev mailing list > nix-dev@lists.science.uu.nl > http://lists.science.uu.nl/mailman/listinfo/nix-dev >
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