save all peerings in a single doc

inventory_provider/tasks/worker.py

@@ -294,6 +294,7 @@ def _build_juniper_peering_db(update_callback=lambda s: None):
     peerings_per_logical_system = {}
     peerings_per_group = {}
     peerings_per_routing_instance = {}
+    all_peerings = []
 
     # scan with bigger batches, to mitigate network latency effects
     key_prefix = 'juniper-peerings:hosts:'
@@ -321,6 +322,7 @@ def _build_juniper_peering_db(update_callback=lambda s: None):
             if routing_instance:
                 peerings_per_routing_instance.setdefault(
                     routing_instance, []).append(p)
+            all_peerings.append(p)
 
     # sort ix peerings by group
     ix_groups = {}
@@ -331,6 +333,8 @@ def _build_juniper_peering_db(update_callback=lambda s: None):
 
     rp = r.pipeline()
 
+    rp.set(f'juniper-peerings:all', json.dumps(all_peerings))
+
     # create peering entries, keyed by remote addresses
     update_callback(f'saving {len(peerings_per_address)} remote peers')
     for k, v in peerings_per_address.items():