users: Create tracing group and add arocanon

m/common/base/users.nix

@@ -40,7 +40,7 @@
         home = "/home/Computational/arocanon";
         description = "Aleix Roca";
         group = "Computational";
-        extraGroups = [ "wheel" ];
+        extraGroups = [ "wheel" "tracing" ];
         hashedPassword = "$6$hliZiW4tULC/tH7p$pqZarwJkNZ7vS0G5llWQKx08UFG9DxDYgad7jplMD8WkZh5k58i4dfPoWtnEShfjTO6JHiIin05ny5lmSXzGM/";
         openssh.authorizedKeys.keys = [
           "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIF3zeB5KSimMBAjvzsp1GCkepVaquVZGPYwRIzyzaCba aleix@bsc"
@@ -118,6 +118,7 @@
 
     groups = {
       Computational = { gid = 564; };
+      tracing = { };
     };
   };
 }

m/raccoon/configuration.nix

@@ -5,6 +5,8 @@
     ../common/base.nix
     ../module/emulation.nix
     ../module/debuginfod.nix
+    ../eudy/kernel/lttng.nix
+    ../eudy/kernel/perf.nix
   ];
 
   # Don't install Grub on the disk yet