[Nix-dev] Multiple ssh substituter hosts

[zimbatm]

It's probably expensive to open all the ssh connections. Depending on your
use-case you might be better off uploading all the binaries to a single
destination like S3.

On Sun, 20 Nov 2016 at 20:16 Bas van Dijk <v.dijk.bas at gmail.com> wrote:

I see. Thanks for pointing me to the source.

I also see that supporting more hosts is listed as a TODO:


https://github.com/NixOS/nix/blob/master/src/download-via-ssh/download-via-ssh.cc#L18

Hopefully that gets implemented some day!

Cheers,

Bas

On 20 November 2016 at 20:13, zimbatm <zimbatm at zimbatm.com> wrote:

Hi Bas,

It looks like it's only taking the first host from the list[1]. I suppose
the intention was to provide fallbacks but it didn't get implemented.

[1]:
https://github.com/NixOS/nix/blob/master/src/download-via-ssh/download-via-ssh.cc#L114


On Sun, 20 Nov 2016 at 15:49 Bas van Dijk <v.dijk.bas at gmail.com> wrote:

Dear all,

Is it possible to have multiple ssh-substituter-hosts, as in:

  ssh-substituter-hosts = nix-ssh at host1 nix-ssh at host2

The documentation[1] is not entirely clear on that.

Bas

[1] http://nixos.org/nix/manual/#ssec-ssh-substituter
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