cluster/{machines,certs}: add dcr03s16.hswaw.net

Also make dataplane-only nodes actually work:
- make kubeproxy use the same package as kubelet
- disable firewall

Change-Id: I7babbb749656e6f75151c8eda6e3f09f3c6bff5f
Reviewed-on: https://gerrit.hackerspace.pl/c/hscloud/+/1686
Reviewed-by: q3k <q3k@hackerspace.pl>
diff --git a/cluster/machines/modules/kube-dataplane.nix b/cluster/machines/modules/kube-dataplane.nix
index 45efcd2..693d633 100644
--- a/cluster/machines/modules/kube-dataplane.nix
+++ b/cluster/machines/modules/kube-dataplane.nix
@@ -46,6 +46,8 @@
         ${n.config.hscloud.base.mgmtIf} ${n.config.hscloud.base.fqdn}
       '')
     controlNodes));
+    
+    networking.firewall.enable = false;
 
     # this seems to depend on flannel
     # TODO(q3k): file issue