add iptables

software/slapos-testing/software.cfg

@@ -19,6 +19,7 @@ extends =
   ../../component/userhosts/buildout.cfg
   ../../component/postgresql/buildout.cfg
   ../../component/psycopg2/buildout.cfg
+  ../../component/nftables/buildout.cfg
   ../../stack/slapos.cfg
   ../../stack/caucase/buildout.cfg
   ../../stack/nxdtest.cfg
@@ -267,5 +268,3 @@ psycopg2 = 2.8.6
 miniupnpc = 1.9
 
 multiping = 1.1.2
-
-