[input_loader & gens] allow sites without kavlan

lib/refrepo/gen/puppet/kavlang5k.rb

@@ -42,6 +42,7 @@ def generate_puppet_kavlang5k(options)
 
   refapi['sites'].each { |site_uid, site_refapi|
 
+    next if not site_refapi['kavlans'] # skip sites without kavlan
     next unless options[:sites].include?(site_uid)
 
     conf = YAML::load(ERB.new(File.read("#{options[:conf_dir]}/kavlang5k.yaml"), trim_mode: '-').result(binding))[site_uid]

lib/refrepo/gen/puppet/stitcherg5k.rb

@@ -36,6 +36,7 @@ end
 def build_stitcher_kavlans_hash(refapi)
   stitcher_kavlans_hash = {}
   refapi['sites'].each do |name, site_hash|
+    next if not site_hash['kavlans'] # skip sites without kavlan
     global_kavlan = site_hash['kavlans'].select { | id, _hash | id =~ /\d\d/ }.first
     global_kavlan_id = global_kavlan.first.to_i
     stitcher_kavlans_hash[global_kavlan_id] = {"vlan" => 700 + global_kavlan_id, "site" => name}

lib/refrepo/input_loader.rb

@@ -507,6 +507,7 @@ def add_kavlan_ipv6s(h)
   h['ipv6']['site_global_kavlans'].each { |key, value| global_vlan_site[value] = key }
   # Set kavlan ipv6 informations at site level
   h['sites'].each_pair do |site_uid, hs|
+    next if not hs['kavlans'] # skip sites without kavlan
     site_prefix = IPAddress hs['ipv6']['prefix']
     kavlan_ids = h['vlans']['base'].map{ |k,v| k if v["type"] =~ /local|routed/ }.compact + [h['ipv6']['site_global_kavlans'][site_uid]]
     kavlan_ids.each do |kvl_id|