add jobset for yureka-staging-test

hosts/bagel-box/default.nix

@@ -40,8 +40,8 @@
 
     hydra.enable = true;
     hydra.dbi = "dbi:Pg:dbname=hydra;user=hydra";
-    # Takes 4 builders (0 → 3).
-    hydra.builders = lib.genList (i: "builder-${builtins.toString i}") 4;
+    # Takes 10 builders (0 → 9).
+    hydra.builders = lib.genList (i: "builder-${builtins.toString i}") 10;
 
     ofborg.enable = true;
   };

terraform/hydra.nix

@@ -165,5 +165,45 @@ in
 
       email_notifications = false;
     };
+
+    resource.hydra_jobset.yureka-staging-test = {
+      project = config.resource.hydra_project.forkos.name;
+      state = "enabled";
+      visible = true;
+      name = "yureka-staging-test";
+      type = "legacy";
+      description = "staging branch for yureka-nixos";
+
+      nix_expression = {
+        file = "pkgs/top-level/release.nix";
+        input = "nixpkgs";
+      };
+
+      check_interval = 0;
+      scheduling_shares = 3000;
+      keep_evaluations = 3;
+
+      email_notifications = false;
+
+      input = [
+        {
+          name = "nixpkgs";
+          type = "git";
+          value = "https://cl.forkos.org/nixpkgs";
+          notify_committers = false;
+        }
+        {
+          name = "officialRelease";
+          type = "boolean";
+          value = "false";
+          notify_committers = false;
+        }
+        {
+          name = "supportedSystems";
+          type = "nix";
+          value = ''[ "x86_64-linux" ]'';
+        }
+      ];
+    };
   };
 }