authelia: session retrieval failure

[JayRovacsek]

Nixpkgs version

Unstable (25.05)

Describe the bug

Authelia recently encountered a bug in handling of sessions that led to clearing of sessions within a short timeframe; see also: authelia/authelia#8980

While the nixpkgs version meets or exceeds the required version 4.39.1, it does not apply all required options to correct the regression. The changeset to resolve this issue is described in this pr: authelia/authelia#9004 - this includes an addition to the go build environment variables that are not handled for in the nixpkgs build process leading to the original problem still persisting.

Steps to reproduce

Setup an authelia instance as per services.authelia.instances.<name>.*

Authenticate to a downstream service, in my experience I did not even need to attempt to auth multiple times, instead API calls caused the upstream issue of a session termination.

Expected behaviour

Authelia is does not terminate sessions as per authelia/authelia#8980

Screenshots

No response

Relevant log output

NA - even in debug mode, authelia does not note the upstream issue in my experience

Additional context

I have tested a local fix via;

Addition of the following to sources.nix

env.GOEXPERIMENT = "nosynchashtriemap";

Modification of default.nix to include the above env content and utilise it within buildGoModule as en example:

...
let
  inherit (import ./sources.nix { inherit fetchFromGitHub; })
    env
    pname
    version
    src
    vendorHash
    ;

  web = authelia-web;
in
buildGoModule rec {
  inherit
    env
    pname
    version
    src
    vendorHash
    ;
...

System metadata

• system: "x86_64-linux"
• host os: Linux 6.12.19, NixOS, 25.05 (Warbler), 25.05.20250321.94c4dbe
• multi-user?: yes
• sandbox: yes
• version: nix-env (Nix) 2.24.12
• nixpkgs: `/nix/store/dbg8dsy231ckdqdz6hjwzmp9cfa6bfqf-source

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[JayRovacsek]

@nicomem apologies to tag you, thanks for the update via 7407020 - I'll look to create a PR when I've got some time, but also keen to hear feedback if the resolve route I explored above would even be suitable

[JayRovacsek]

Created #392258 for this

[nicomem]

Good catch! I did not see this modification in the upstream build process, but it should indeed be done in ours too