create VM running k3s

nixos/machines/default.nix

@@ -56,7 +56,6 @@
     };
   };
 
-  # TODO: make leases persistent!
   hermes = {
     type = "virtual";
     hypervisorName = "lewis";
@@ -67,6 +66,7 @@
 
         vm = {
           # TODO: would be cool to create a check that a mac address is only ever assigned to one VM.
+          # TODO: idea: what if we generated these IDs by hashing the host name and reducing that to the amount of hosts possible?
           id = 7;
           staticNetworking = true;
           staticIPv4 = config.lab.networking.dmz.ipv4.services;
@@ -125,4 +125,26 @@
       };
     };
   };
+
+  k3s = {
+    type = "virtual";
+    hypervisorName = "atlas";
+
+    nixosModule = {
+      microvm.balloonMem = 7680;
+
+      lab = {
+        k3s.enable = true;
+
+        vm = {
+          id = 4;
+
+          shares = [{
+            name = "k3s";
+            mountPoint = "/var/lib/rancher/k3s";
+          }];
+        };
+      };
+    };
+  };
 }