node[:network][:interfaces].each do |ifname, ifattr|
if ifattr[:encapsulation] == "Ethernet" && ifattr[:state] == "up"
- if node[:hardware] && node[:hardware][:network][ifname][:device] =~ /^virtio/
+ if node[:hardware] &&
+ node[:hardware][:network] &&
+ node[:hardware][:network][ifname][:device] =~ /^virtio/
munin_plugin_conf "if_#{ifname}" do
template "if.erb"
variables :ifname => ifname