add persistence to gid/uid services of microvm and set vsock.cid

modules/services/dmz/microvm.nix

@@ -84,6 +84,7 @@ in
             persistence."/persist" = {
               directories = [
                 "/var/log"
+                "/var/lib/nixos"
                 "/var/lib/private"
               ];
 
@@ -95,6 +96,7 @@ in
 
           microvm = {
             hypervisor = "cloud-hypervisor";
+            vsock.cid = 3;
             vcpu = 4;
             mem = 4096;
             interfaces = [

modules/services/kabtopci/microvm.nix

@@ -84,6 +84,7 @@ in
             persistence."/persist" = {
               directories = [
                 "/var/log"
+                "/var/lib/nixos"
                 "/var/lib/private"
               ];
 

modules/services/server/microvm.nix

@@ -84,6 +84,7 @@ in
             persistence."/persist" = {
               directories = [
                 "/var/log"
+                "/var/lib/nixos"
                 "/var/lib/private"
               ];