in kong/plugins/skywalking/handler.lua [58:69]
function SkyWalkingHandler:get_remote_peer(balancer_data)
local peer = ''
if balancer_data then
if balancer_data.host then
peer = balancer_data.host
else
peer = balancer_data.ip
end
peer = peer .. ':' .. balancer_data.port
end
return peer
end