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| author | Florian Klink <flokli@flokli.de> | 2021-08-20 19:44:17 +0200 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2021-08-20 19:44:17 +0200 |
| commit | f8031c60b72f26adeaa236abc3dabd52b94b4978 (patch) | |
| tree | 09469d375ad30b49251d9842d2ea408c3f7f6573 /pkgs/build-support/docker/default.nix | |
| parent | 3efbe3863aba9bbb49d1f0163d2665b44c125a01 (diff) | |
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dockerTools.fakeNss: add /etc/nsswitch.conf (#134958)
Apparently, a non-existent nsswitch.conf causes a very misleading host resolution, differing from the defaults people are used to. According to https://github.com/golang/go/issues/22846#issuecomment-346377144, glibc says the default is "dns [!UNAVAIL=return] files". This means, `/etc/hosts` isn't really honored, causing all sorts of unexpected behaviour. Let's prevent this, and first ask `/etc/hosts` before querying DNS, like we do on NixOS too.
Diffstat (limited to 'pkgs/build-support/docker/default.nix')
| -rw-r--r-- | pkgs/build-support/docker/default.nix | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/pkgs/build-support/docker/default.nix b/pkgs/build-support/docker/default.nix index d76efac55b1..832d2949a1a 100644 --- a/pkgs/build-support/docker/default.nix +++ b/pkgs/build-support/docker/default.nix @@ -750,6 +750,9 @@ rec { root:x:0: nobody:x:65534: '') + (writeTextDir "etc/nsswitch.conf" '' + hosts: files dns + '') (runCommand "var-empty" { } '' mkdir -p $out/var/empty '') |