Make zippy a compute node.

common/cattle-node.nix

@@ -1,15 +0,0 @@
-{ pkgs, ... }:
-{
-  imports = [
-    ./cifs-client.nix
-    ./consul.nix
-    ./glusterfs.nix
-    ./glusterfs-client.nix
-    ./impermanence.nix
-    ./nomad.nix
-    ./sshd.nix
-    ./user-ppetru.nix
-    ./unattended-encryption.nix
-    ./systemd-boot.nix
-  ];
-}

common/consul.nix

@@ -12,7 +12,7 @@ in
       client_addr = "0.0.0.0";
       datacenter = "alo";
       server = server_enabled;
-      bootstrap_expect = (builtins.length servers + 2) / 2;
+      bootstrap_expect = if server_enabled then (builtins.length servers + 2) / 2 else null;
       retry_join = builtins.filter (elem: elem != config.networking.hostName) servers;
       telemetry = {
         prometheus_retention_time = "24h";