Nixpkgs: Steam adds support for Linux namespaces

[davidak]

Valve released Linux namespace (container) support for the steam-runtime as beta.

Official announcement: https://steamcommunity.com/app/221410/discussions/0/1638675549018366706/

Phoronix article: https://www.phoronix.com/scan.php?page=news_item&px=Steam-Linux-Exp-Containers

This issue if for discussion and maybe implementing this feature in our package.

I start with a question: Will this help us to have a cleaner package?

cc @abbradar @jagajaga @tadfisher @Synthetica9

[wucke13]

When running steam beta (which includes support for the namespacing you mentioned) on NixOS, I receive the following errors:

Running Steam on nixos 19.09.1125.d628521d0b7 64-bit
STEAM_RUNTIME has been set by the user to: /steamrt
Error: You are missing the following 32-bit libraries, and Steam may not run:
libva.so.2
libva.so.2
libva-x11.so.2
/home/wucke13/.local/share/Steam/ubuntu12_32/steam
Installing breakpad exception handler for appid(steam)/version(1573176642)
Installing breakpad exception handler for appid(steam)/version(1573176642)
Installing breakpad exception handler for appid(steam)/version(1573176642)
Failed to load steamui.so - dlerror(): libva.so.2: cannot open shared object file: No such file or directory
Installing breakpad exception handler for appid(steam)/version(1573176642)
Installing breakpad exception handler for appid(steam)/version(1573176642)
[2019-11-11 14:24:14] Startup - updater built Nov  7 2019 23:57:30
[2019-11-11 14:24:14] Opted in to client beta 'publicbeta' via beta file
You are in the 'publicbeta' client beta.
Looks like steam didn't shutdown cleanly, scheduling immediate update check
[2019-11-11 14:24:14] Checking for update on startup
[2019-11-11 14:24:14] Checking for available updates...
[2019-11-11 14:24:14] Downloading manifest: client-download.steampowered.com/client/steam_client_publicbeta_ubuntu12
[2019-11-11 14:24:14] Download skipped by HTTP 304 Not Modified
[2019-11-11 14:24:14] Nothing to do
[2019-11-11 14:24:14] Verifying installation...
[2019-11-11 14:24:14] Performing checksum verification of executable files
[2019-11-11 14:24:15] Verification complete
[2019-11-11 14:24:17] Shutdown

So we probably should ~add libva.out to the steam derivation~ look into this issue too.

[davidak]

@wucke13 that's probably fixed with https://github.com/NixOS/nixpkgs/pull/73108.

I think you must enable the namespacing manually for each game.

That might cause problems since we already use namespacing...

But i have no idea about such low level details. Waiting for some feedback from the maintainers.

[matthew-piziak]

If anyone is bouncing off of a libva.so not found error, pkgs.steam.overrideAttrs (orig: { extraPkgs = with pkgs; [ libva ]; }); might work around it for you, as it did for me.

[jonringer]

this has been fixed, steam removed their "crash if libva.so (32bit) isn't available."

[jonringer]

oh, original issue is about namespaces

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[davidak]

this is still relevant for better compatibility i think