Kubernetes SIG-Network: Intro and Deep-Dive
Talkat KubeCon + CloudNativeCon North America 2020 Virtual · on Thursday, 2020-11-19· at 17:40· Intrado Virtual Event Platform,·
summary
Covers concrete fixes and APIs: kube-proxy uses iptables/ipvs and CNI for pod IPs, CoreDNS is default, and IPAM handles allocations; node-local DNS runs as a DaemonSet with dummy interface and no-track rules (GA in v1.18) to cut DNS query load; endpoint slice splits massive endpoints lists to avoid 1 MB per Endpoints (5,000-node example) and prevents rolling-update churn that could otherwise push ~25 TB of updates (GA in v1.20); introduces a gateway class / Gateway API to separate exposure, routing, and selection and supports dual-stack via plural podIPs.
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chapters (17)
- 0:00Start
- 10:58Endpoints controller(s)
- 12:51Services: DNS
- 14:56Kube-proxy: control path
- 15:28Kube-proxy: data path
- 17:16Service LoadBalancers
- 19:17Ingress FAQ
- 20:23NetworkPolicy
- 22:10Deep-dive
- 22:57NodeLocal DNS
- 27:22EndpointSlice
- 33:01Services across Clusters
- 34:15ServiceExport
- 36:05Servicelmports: DNS
- 37:33IPv{4,6} Dual Stack
- 41:08Services V+1
- 50:01Enhancements
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