Extract a method for calculating the TTL of a service
Extract a method for calculating the TTL of a service

weekface/skydns,nicescale/skydns,erimatnor/skydns-kubernetes,andrewrothstein/skydns,skynetservices/skydns,netf/skydns,zhang0137/skydns,smarterclayton/skydns,no2key/skydns,vinhhrv/skydns,hw-qiaolei/skydns,tuannvm/skydns,zvelo/zvelo-skydns,yonglehou/skydns,AdoHe/skydns,tonicbupt/skydns,ZeaLoVe/skydns,loveshell/skydns