[Nix-dev] gitFetchPrivate on NixOS

[zimbatm]

Hi,

Yes the difference is that the build user is nixbld[1-9]. Also the SSH
agent doesn't allow other users to access to the socket.

Sorry I don't know the solution. You could maybe build a bridge on the
socket using `socat` to hide the caller's user.

On Wed, 15 Jun 2016, 11:57 Ashely Gillman, <gillmanash at gmail.com> wrote:

> Hi all,
> I have been attempting to use gitFetchPrivate to fetch from a private
> bitbucket repo over SSH, on both Ubuntu running Nix and on NixOS. I am able
> to get the setup working on Ubuntu.
>
> - Set up SSH-Agent the usual way.
> - Ensure that `git clone ssh://git@bitbucket.domain.com:<port>/<user>/<repo>.git`
> works, it does
> - Use `nix-shell -I ssh-config-file=$HOME/.ssh/config -I
> ssh-auth-sock=$SSH_AUTH_SOCK`, with a local shell.nix specifying
> requirements
>
> However, I am unable to repeat the process on a NixOS machine.
>
>     gil at gil-nixos:~/proj/pylx $ git clone ssh://git@bitbucket.
> <DOMAIN>:7999/~<USER>/milx-view.git
>     <This works>
>
>     gil at gil-nixos:~/proj/pylx $ nix-shell -I
> ssh-config-file=$HOME/.ssh/config -I ssh-auth-sock=$SSH_AUTH_SOCK
>     these derivations will be built:
>       /nix/store/48cz61di3gf6fpkydgri74h5i2s8qh3h-vtk-qvtk-5.10.1.drv
>       /nix/store/pcj22pnchg10bq63a32jcc53l75cy8z1-boost-1.59.0.drv
>       /nix/store/sb7xc3pan2h7n1qdh94ynblb9cv12a3p-milx-view-585a819.drv
>       /nix/store/dzh8jzl90ghsl0l71p9v2zqzh9wn2ngb-milx-view.drv
>     building path(s)
> ‘/nix/store/603gs7mcgpf7cnyv3k2bkxk1kbj4smbq-boost-1.59.0’,
> ‘/nix/store/q26zzdzy5zngyxyah8fhqmnqwbmz4gl4-boost-1.59.0-lib’,
> ‘/nix/store/zggqsmrh9l70yrcdagmgqjmv8i6a9rls-boost-1.59.0-dev’
>     building path(s)
> ‘/nix/store/ra27851hlszq1k0n9zfa14xwhxqvn8zs-milx-view-585a819’
>     building path(s)
> ‘/nix/store/j70pal3svpcip7xv21bxf5xy2c4chl84-vtk-qvtk-5.10.1’
>     exporting ssh://git@bitbucket.<DOMAIN>:7999/~<USER>/milx-view.git
> (rev 585a8195804) into
> /nix/store/ra27851hlszq1k0n9zfa14xwhxqvn8zs-milx-view-585a819
>     Initialized empty Git repository in
> /nix/store/ra27851hlszq1k0n9zfa14xwhxqvn8zs-milx-view-585a819/.git/
>     Can't open user config file /home/gil/.ssh/config: Permission denied
>     fatal: Could not read from remote repository.
>
>     Please make sure you have the correct access rights
>     and the repository exists.
>     unpacking sources
>     unpacking source archive
> /nix/store/cdz3wd9r8vlnp193kv091pal401mg9kc-boost_1_59_0.tar.bz2
>     Can't open user config file /home/gil/.ssh/config: Permission denied
>     fatal: Could not read from remote repository.
>
>     Please make sure you have the correct access rights
>     and the repository exists.
>     Unable to checkout 585a8195804 from ssh://git@bitbucket.
> <DOMAIN>:7999/~<USER>/milx-view.git.
>     builder for
> ‘/nix/store/sb7xc3pan2h7n1qdh94ynblb9cv12a3p-milx-view-585a819.drv’ failed
> with exit code 1
>     cannot build derivation
> ‘/nix/store/dzh8jzl90ghsl0l71p9v2zqzh9wn2ngb-milx-view.drv’: 1 dependencies
> couldn't be built
>     error: build of
> ‘/nix/store/dzh8jzl90ghsl0l71p9v2zqzh9wn2ngb-milx-view.drv’ failed
>     /run/current-system/sw/bin/nix-shell: failed to build all dependencies
>
> With the relevant line being:
>     Can't open user config file /home/gil/.ssh/config: Permission denied
>
> Probably a nixbld user is trying to access this? I am not actually sure if
> my nixpkgs are built by my user or by nixbld. How can I tell? `cat
> /etc/passwd` indicates that the nixbld users exist.
>
> I have attempted to follow instructions for setting up gitFetchPrivate for
> multi-user installations (but again, not even sure this is what I have - I
> just installed the simplest way), but to no avail (although the
> instructions are somewhat unclear).
>
> Thanks for any help,
> Ashley Gillman (Ash)
> _______________________________________________
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> nix-dev at lists.science.uu.nl
> http://lists.science.uu.nl/mailman/listinfo/nix-dev
>
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