Increase inotify limit for servers

machines/lewis/configuration.nix

@@ -16,7 +16,6 @@
     };
 
     pim = {
-      # TODO: this should be dynamically set using Colmena tags
       k3s.serverAddr = "https://jefke.dmz:6443";
       data-sharing.enable = true;
       backups.enable = true;

nixos/server.nix

@@ -29,10 +29,17 @@
       };
     };
 
-    boot.loader = {
+    boot = {
+      # Increase this from 128.
+      # It seems containerization solutions use this a lot.
+      # Then, if exhausted, deployment of sops keys fail.
+      kernel.sysctl."fs.inotify.max_user_instances" = 256;
+
+      loader = {
         systemd-boot.enable = true;
         efi.canTouchEfiVariables = true;
       };
+    };
 
     services = {
       openssh.enable = true;