inventory: split out some more groups that mix iad2 and external

Signed-off-by: Kevin Fenzi <kevin@scrye.com>

inventory/inventory

@@ -1235,8 +1235,9 @@ iad2_staging
 [iad2_production:children]
 backup
 badges
-bastion
-batcave
+bastion01.iad2.fedoraproject.org
+bastion02.iad2.fedoraproject.org
+batcave01.iad2.fedoraproject.org
 bodhi_backend
 buildhw
 buildvm
@@ -1249,7 +1250,9 @@ bvirthost
 certgetter
 dbserver
 debuginfod
-dns
+ns01.iad2.fedoraproject.org
+ns02.iad2.fedoraproject.org
+ns13.rdu2.fedoraproject.org
 download_iad2
 fedimg
 github2fedmsg
@@ -1263,7 +1266,7 @@ mailman
 mbs
 memcached
 mm
-nagios
+noc01.iad2.fedoraproject.org
 notifs
 nuancier
 oci_registry
@@ -1274,7 +1277,10 @@ openqa_lab_workers
 openqa_workers
 pdc_web
 pkgs
-proxies
+proxy01.iad2.fedoraproject.org
+proxy10.iad2.fedoraproject.org
+proxy101.iad2.fedoraproject.org
+proxy110.iad2.fedoraproject.org
 qahardware
 rabbitmq
 releng_compose