Add configs for a new kubernetes cluster on NixOS.

nix/kubernetes/roles/ssh/default.nix

@@ -0,0 +1,50 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+
+{
+  imports = [ ];
+
+  options.me = {
+    ssh.enable = lib.mkOption {
+      type = lib.types.bool;
+      default = false;
+      example = true;
+      description = "Whether we want to install ssh.";
+    };
+  };
+
+  config = lib.mkIf config.me.ssh.enable {
+    environment.systemPackages = with pkgs; [
+      sshfs
+    ];
+
+    environment.persistence."/persist" = lib.mkIf (config.me.mountPersistence) {
+      hideMounts = true;
+      users.talexander = {
+        files = [
+          ".ssh/known_hosts"
+        ];
+      };
+      users.root = {
+        files = [
+          ".ssh/known_hosts"
+        ];
+      };
+    };
+
+    me.install.user.root.file = {
+      ".ssh/config" = {
+        source = ./files/ssh_config_root;
+      };
+    };
+    me.install.user.talexander.file = {
+      ".ssh/config" = {
+        source = ./files/ssh_config;
+      };
+    };
+  };
+}