samba4Full: is not full (missing clustering support)

Nixpkgs version

• Stable (26.05)

Describe the bug

The samba4Full package is compiled without the --with-cluster-support flag.

https://github.com/NixOS/nixpkgs/blob/bd0ff2d3eac24699c3664d5966b9ef36f388e2ca/pkgs/servers/samba/4.x.nix

https://github.com/NixOS/nixpkgs/blob/f3cbc10697c089fc4ab3668aadf20daa3953a8b1/pkgs/top-level/all-packages.nix#L7711-L7720

There is no override/option(?) for clustering yet.

Steps to reproduce

• configure samba with services.samba.package = pkgs.samba4Full

• [youruser@yourmachine:~]$ smbd -b
  
  [...]
  
  Cluster support features:
     NONE
  
  [...]
  

Expected behaviour

I'd expect samba4Full to be built with all features.

Screenshots

No response

Relevant log output

Additional context

https://discourse.nixos.org/t/how-can-i-get-samba-ctdb/78249

I tried overriding the package to compile with clustering support myself but it failed due to FHS paths. This attempt is documented in the Discourse help request but I believe that this should actually be fixed on the package level.

Weakly related to #532714

System metadata

Irrelevant in this context

Notify maintainers

@aneeshusa

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Start with pkgs/servers/samba/4.x.nix and the samba4Full definition in pkgs/top-level/all-packages.nix. Compare the package configuration with Samba's --with-cluster-support requirements and reproduce using services.samba.package = pkgs.samba4Full, then run smbd -b. Done means samba4Full exposes cluster support without the FHS-path failure described in the issue.