Merge branch 'aws-less-swap' into 'develop'

Less swap on disk constrained AWS hosts

See merge request privatestorage/PrivateStorageio!150

morph/lib/issuer-aws.nix

@@ -9,7 +9,7 @@
   boot.kernel.sysctl = { "vm.swappiness" = 0; };
   swapDevices = [ {
     device = "/var/swapfile";
-    size = 8192; # megabytes
+    size = 4096; # megabytes
     randomEncryption = true;
   } ];