JianFeng Ding, LuYao Zhong #IstioCon Agenda ● Istio identity ● mTLS in Isito ● Secure ingress traffic ● Authorize ingress traffic ● Authorize in mesh traffic ● Summary #IstioCon Istio Architecture Connect peer-authentication to enable server side mTLS mTLS in Istio - PeerAuthenticati on Using ingress port and ingress host to send request: can access reviews-v1, reviews-v2 and reviews-v3 can reach v2 as Apply destination rule to enable client side mTLS mTLS in Istio - Destination rule Using ingress port and ingress host to send request: can access reviews-v1, reviews-v3 can not access reviews-v2 since

tc hooks • Triggered by ingress/egress packets IPVS bypass conntrack • Why IPVS depends on conntrack? • Iptables/conntrack SNAT • How IPVS bypasses conntrack? • Ingress • Move IPVS Netfilter hook program is easy to deploy • How to do SNAT in eBPF • Do SNAT in TC egress • Do reverse SNAT in TC ingress Tc egress Hit eBPF map? Does SNAT nic nic Y N • How IPVS talks with eBPF program? • eBPF