nixos-config/pkgs/coredns/default.nix
Erwin Boskma cb7a2cd4bc
Let's roll our own coredns package
With blackjack and hoo...

Uhm, working plugins. Yes, working plugins. Definitely.
2024-05-29 19:50:20 +02:00

95 lines
2.3 KiB
Nix

{
lib,
gnused,
stdenv,
buildGoModule,
fetchFromGitHub,
installShellFiles,
}:
let
version = "1.11.1";
externalPlugins = [
{
name = "tailscale";
repo = "github.com/damomurf/coredns-tailscale";
version = "750df081a3cc63f325ecfde6c30a974dc0e4bf56";
}
];
attrsToPlugins = attrs: builtins.map ({ name, repo, ... }: "${name}:${repo}") attrs;
attrsToSources = attrs: builtins.map ({ repo, version, ... }: "${repo}@${version}") attrs;
in
buildGoModule {
pname = "coredns";
inherit version;
src = fetchFromGitHub {
owner = "coredns";
repo = "coredns";
rev = "v${version}";
sha256 = "sha256-Mn8hOsODTlnl6PJaevMcyIKkIx/1Lk2HGA7fSSizR20=";
};
# vendorHash = lib.fakeHash;
vendorHash = "sha256-ba8Krc8FVrylsV0n/3JNRTrL3bP8UJRdKF2fy8SYU3o=";
nativeBuildInputs = [ installShellFiles ];
outputs = [
"out"
"man"
];
# Override the go-modules fetcher derivation to fetch plugins
modBuildPhase = ''
for plugin in ${builtins.toString (attrsToPlugins externalPlugins)}; do
echo "Adding plugin $plugin"
${gnused}/bin/sed -i "/forward:forward/i$plugin" plugin.cfg
done
for src in ${builtins.toString (attrsToSources externalPlugins)}; do
echo "Retrieving $src"
go get $src
done
go generate
go mod tidy
go mod vendor
'';
modInstallPhase = ''
mv -t vendor go.mod go.sum plugin.cfg
cp -r --reflink=auto vendor "$out"
'';
preBuild = ''
chmod -R u+w vendor
mv -t . vendor/go.{mod,sum} vendor/plugin.cfg
go generate
'';
postPatch =
''
substituteInPlace test/file_cname_proxy_test.go \
--replace "TestZoneExternalCNAMELookupWithProxy" \
"SkipZoneExternalCNAMELookupWithProxy"
substituteInPlace test/readme_test.go \
--replace "TestReadme" "SkipReadme"
# this test fails if any external plugins were imported.
# it's a lint rather than a test of functionality, so it's safe to disable.
substituteInPlace test/presubmit_test.go \
--replace "TestImportOrdering" "SkipImportOrdering"
''
+ lib.optionalString stdenv.isDarwin ''
# loopback interface is lo0 on macos
sed -E -i 's/\blo\b/lo0/' plugin/bind/setup_test.go
'';
postInstall = ''
installManPage man/*
'';
}