1、kubernetes的service health Check 依托 kubernetes 本身的health probe
2、在kubernetes x-forwards 能否拿到真实客户端ip 依靠kube-proxy的配置，可以参考以下内容
https://stackoverflow.com/questions/50585616/kubernetes-metallb-traefik-how-to-get-real-client-ip
When kube-proxy uses the iptables mode, it uses NAT to send data to the node where payload works, and you lose the original SourceIP address in that case.
解决办法：
https://blog.csdn.net/easylife206/article/details/111243763
3、mirror 能力受限，可能只有file provider可以实现
