initial commit

modules/k3s.nix

@@ -0,0 +1,49 @@
+{
+  config,
+  lib,
+  meta,
+  ...
+}:
+with lib; let
+  cfg = config.k3s;
+in {
+  options.k3s = {
+    init = mkOption {
+      type = types.bool;
+      default = false;
+      description = "Initialize cluster when set to true";
+    };
+  };
+
+  config = {
+    services = {
+      k3s = {
+        enable = true;
+        role = "server";
+        clusterInit = cfg.init;
+        serverAddr =
+          if cfg.init
+          then ""
+          else meta.serverAddr;
+        token =
+          if cfg.init
+          then ""
+          else meta.k3sToken;
+        extraFlags =
+          [
+            "--kubelet-arg=allowed-unsafe-sysctls=net.ipv4.*"
+          ]
+          ++ (
+            if cfg.init
+            then [
+              "--disable servicelb"
+              "--disable traefik"
+              "--disable local-storage"
+              "--write-kubeconfig-mode \"0644\""
+            ]
+            else []
+          );
+      };
+    };
+  };
+}