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aszlig 751bdacc9b
nixos/nsd: Don't override bind via nixpkgs.config
When generating values for the services.nsd.zones attribute using values
from pkgs, we'll run into an infinite recursion because the nsd module
has a condition on the top-level definition of nixpkgs.config.

While it would work to push the definition a few levels down, it will
still only work if we don't use bind tools for generating zones.

As far as I could see, Python support for BIND seems to be only needed
for the dnssec-* tools, so instead of using nixpkgs.config, we now
directly override pkgs.bind instead of globally in nixpkgs.

To illustrate the problem with a small test case, instantiating the
following Nix expression from the nixpkgs source root will cause the
mentioned infinite recursion:

  (import ./nixos {
    configuration = { lib, pkgs, ... }: {
      services.nsd.enable = true;
      services.nsd.zones = import (pkgs.writeText "foo.nix" ''
        { "foo.".data = "xyz";
          "foo.".dnssec = true;
        }
      '');
    };
  }).vm

With this change, generating zones via import-from-derivation is now
possible again.

Signed-off-by: aszlig <aszlig@nix.build>
Cc: @pngwjpgh
2019-01-04 01:49:50 +01:00
.github codeowners: fix reference to renamed file 2018-12-26 10:42:11 +01:00
doc Merge pull request #52767 from timokau/vim-plugin-updates 2018-12-28 13:48:21 +01:00
lib Remove composableDerivation, closes #18763 2018-12-30 12:33:45 +00:00
maintainers frogatto: init at 0.0.2018-12-09 (#52989) 2019-01-02 11:47:16 +01:00
nixos nixos/nsd: Don't override bind via nixpkgs.config 2019-01-04 01:49:50 +01:00
pkgs Merge pull request #53335 from r-ryantm/auto-update/ibus-typing-booster 2019-01-04 00:40:00 +01:00
.editorconfig Revert ".version: remove final newline" 2018-04-28 14:23:13 +02:00
.gitattributes gitattributes: disable merge=union in all-packages 2018-03-27 11:03:03 -05:00
.gitignore Replace androidenv by new implementation 2018-12-18 21:16:06 +01:00
.version 18.09 -> 19.03 2018-09-02 16:45:00 -04:00
COPYING COPYING: move notice to README.md 2018-10-13 13:22:18 +00:00
default.nix Fix local path to release notes in error message 2018-10-08 05:43:15 -05:00
README.md doc/reviewing-contributions: pull-requests -> pull requests 2018-11-19 13:03:23 -06:00

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