nixos/nix image doesn't have pkgs.iana-etc contents (/etc/protocols and /etc/services)

[arianvp]

Describe the bug

/etc/services and /etc/protocols are missing; which means certain binaries we're running in CI aren't working anymore after we moved from nixos/nix:2.3.11 to nixos/nix:latest

Steps To Reproduce

run docker image and run a service that depends on glibc and does a name lookup. It fails.

Expected behavior

/etc/protocol and /etc/services is populated so that glibc can do proper name lookups

nix-env --version output

Additional context

This worked in the alpine based build. Sounds like a regression when we moved to a nix-based build.

[M1Sports20]

I am also seeing this problem and don't know a work around. I tried adding the nixpkgs.iana-etc and it doesn't seem to do anything, include adding the files.