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nixos-containers: Add support for custom nixpkgs argument #85570

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merged 1 commit into from Apr 20, 2020

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adisbladis
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@adisbladis adisbladis commented Apr 19, 2020

Motivation

With this change it's possible to use a different version of nixpkgs for your containers than your main system.

Things done
  • Tested using sandboxing (nix.useSandbox on NixOS, or option sandbox in nix.conf on non-NixOS linux)
  • Built on platform(s)
    • NixOS
    • macOS
    • other Linux distributions
  • Tested via one or more NixOS test(s) if existing and applicable for the change (look inside nixos/tests)
  • Tested compilation of all pkgs that depend on this change using nix-shell -p nixpkgs-review --run "nixpkgs-review wip"
  • Tested execution of all binary files (usually in ./result/bin/)
  • Determined the impact on package closure size (by running nix path-info -S before and after)
  • Ensured that relevant documentation is up to date
  • Fits CONTRIBUTING.md.

@Ma27 Ma27 self-requested a review April 19, 2020 22:31
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Thanks, this seems like a useful addition to me.

Apart from the comments below there are two more things:

  • You should add the VM-test to nixos/tests/all-tests.nix to make sure it's built by Hydra.
  • Would it make sense to add sth. similar to imperative nixos-containers?

nixos/tests/containers-custom-pkgs.nix Show resolved Hide resolved
nixos/modules/virtualisation/containers.nix Show resolved Hide resolved
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@Ma27 Ma27 added the 6.topic: nixos-container Imperative and declarative systemd-nspawn containers label Apr 19, 2020
@adisbladis
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You should add the VM-test to nixos/tests/all-tests.nix to make sure it's built by Hydra.

👍

Would it make sense to add sth. similar to imperative nixos-containers?

Maybe? I'd rather not touch imperative containers tbh.

@adisbladis
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@GrahamcOfBorg eval

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3 participants