update bw to 4.3, add .provides() to metadata reactors

bundles/wireguard/metadata.py

@@ -26,7 +26,9 @@ defaults = {
 }
 
 
-@metadata_reactor
+@metadata_reactor.provides(
+    'wireguard/network',
+)
 def get_wireguard_network_from_server(metadata):
     # FIXME This will break if more than one node sets 'wireguard/network'
     for rnode in repo.nodes:
@@ -46,7 +48,9 @@ def get_wireguard_network_from_server(metadata):
     return {}
 
 
-@metadata_reactor
+@metadata_reactor.provides(
+    'wireguard/peers',
+)
 def get_my_wireguard_peers(metadata):
     peers = {}
 
@@ -76,7 +80,9 @@ def get_my_wireguard_peers(metadata):
     }
 
 
-@metadata_reactor
+@metadata_reactor.provides(
+    'icinga2_api/wireguard/services',
+)
 def icinga2(metadata):
     services = {}