Add hydra service.

3 files changed, 47 insertions, 3 deletions

diff --git a/config/common.nix b/config/common.nix
index 873d94c..0221254 100644
--- a/config/common.nix
+++ b/config/common.nix
@@ -21,10 +21,15 @@
   ];
   time.timeZone = "America/New_York";
 
+  services = {
+    openssh.passwordAuthentication = false;
+  };
+
   nix = {
-    useSandbox = true;
-    maxJobs = 8;
-    buildCores = 0;  # auto configure
+    useSandbox = lib.mkDefault true;
+    maxJobs = lib.mkDefault 16;
+    buildCores = lib.mkDefault 0;  # auto configure
+    gc.automatic = lib.mkDefault true;
   };
 
   boot.cleanTmpDir = true;
diff --git a/config/hydra.nix b/config/hydra.nix
new file mode 100644
index 0000000..9242310
--- /dev/null
+++ b/config/hydra.nix
@@ -0,0 +1,31 @@
+{ config, lib, pkgs, ... }:
+let
+  hydraPort = (import ../data/aliases.nix).services.hydra.port;
+in
+{
+  services.hydra = {
+    enable = true;
+    hydraURL = "https://hydra.orbekk.com";
+    notificationSender = "kj+hydra@orbekk.com";
+    port = hydraPort;
+  };
+  
+  nix = {
+    distributedBuilds = true;
+    nrBuildUsers = 30;
+    # Enable this if I run low on disk.
+    gc.automatic = lib.mkForce false;
+    buildMachines = [
+      {
+        hostName = "localhost";
+        system = "x86_64-linux";
+        maxJobs = "16";
+        supportedFeatures = [ "kvm" "nixos-test" "big-parallel" "benchmark" ]; 
+      }
+    ];
+    extraOptions = "auto-optimise-store = true";
+  };
+  nixpkgs.config = {
+    allowUnfree = true;
+  };
+}
diff --git a/data/aliases.nix b/data/aliases.nix
new file mode 100644
index 0000000..1240722
--- /dev/null
+++ b/data/aliases.nix
@@ -0,0 +1,8 @@
+{
+  ip = {
+    shape = 10.0.20.15;
+  };
+  services = {
+    hydra = { address = ip.shape; port = 11101; };
+  };
+}