Remove Nebula

I'm basically all in on Tailscale now

ansible/group_vars/all/nebula.yml

@@ -1,9 +0,0 @@
-nebula:
-  cidr: 10.23.2.0/24
-  clients:
-    casey:
-      ip: 10.23.2.1
-    walker:
-      ip: 10.23.2.4
-    ingress:
-      ip: 10.23.2.5

ansible/group_vars/all/network.yml

@@ -1,2 +1 @@
-private_ip: "{{ nebula.clients[hostname_slug].ip }}"
 ssh_port: 7743

ansible/group_vars/all/tailscale.yml

@@ -5,3 +5,7 @@ tailscale_cidr: 100.64.0.0/24  # It's really /10, but I don't use that many IPs
 tailscale_cidr_ipv6: fd7a:115c:a1e0::/120  # It's really /48, but I don't use that many IPs
 
 tailscale_port: 41641
+
+tailscale_nodes:
+  casey:
+    ip: 100.64.0.1