transparently insert security visibility + enforcement, but does so in a way that is based on service / pod / container identity (in contrast to IP address identification in traditional systems) and can filter Restarted unmanaged pod kube-system/event-exporter-gke-564fb97f9- rv8hg ♻ Restarted unmanaged pod kube-system/kube-dns-6465f78586-hlcrz ♻ Restarted unmanaged pod kube-system/kube-dns-autoscaler- 7f89fb6b79-fsmsg Restarted unmanaged pod kube-system/l7-default-backend-7fd66b8b88- qqhh5 ♻ Restarted unmanaged pod kube-system/metrics-server-v0.3.6- 7b5cdbcbb8-kjl65 ♻ Restarted unmanaged pod kube-system/stackdr

transparently insert security visibility + enforcement, but does so in a way that is based on service / pod / container identity (in contrast to IP address identification in traditional systems) and can filter paths include with and without service load- balancing and various network policy combinations. The pod name indicates the connectivity variant and the readiness and liveness gate indicates success or failure 65s pod-to-a-79546bc469-rl2qq 1/1 Running 0 66s pod-to-a-allowed-cnp-58b7f7fb8f-lkq7p 1/1 Running 0 66s pod-to-a-de

transparently insert security visibility + enforcement, but does so in a way that is based on service / pod / container identity (in contrast to IP address identification in traditional systems) and can filter paths include with and without service load- balancing and various network policy combinations. The pod name indicates the connectivity variant and the readiness and liveness gate indicates success or failure 67s pod-to-a-allowed-cnp-87b5895c8-bfw4x 1/1 Running 0 68s pod-to-a-b76ddb6b4-2v4kb 1/1 Running 0 68s pod-to-a-denie

transparently insert security visibility + enforcement, but does so in a way that is based on service / pod / container identity (in contrast to IP address identification in traditional systems) and can filter Restarted unmanaged pod kube-system/event-exporter-gke-564fb97f9- rv8hg ♻ Restarted unmanaged pod kube-system/kube-dns-6465f78586-hlcrz ♻ Restarted unmanaged pod kube-system/kube-dns-autoscaler- 7f89fb6b79-fsmsg Restarted unmanaged pod kube-system/l7-default-backend-7fd66b8b88- qqhh5 ♻ Restarted unmanaged pod kube-system/metrics-server-v0.3.6- 7b5cdbcbb8-kjl65 ♻ Restarted unmanaged pod kube-system/stackdr

transparently insert security visibility + enforcement, but does so in a way that is based on service / pod / container identity (in contrast to IP address identification in traditional systems) and can filter paths include with and without service load- balancing and various network policy combinations. The pod name indicates the connectivity variant and the readiness and liveness gate indicates success or failure 4m50s pod-to-a-59b5fcb7f6-gq4hd 1/1 Running 0 4m50s pod-to-a-allowed-cnp-55f885bf8b-5lxzz 1/1 Running 0 4m50s pod-to-a-ext

Kubernetes Endpoint Lifecycle Troubleshoo�ng Monitoring & Metrics Exported Metrics Cilium as a Kubernetes pod Cilium as a host-agent on a node Troubleshoo�ng Component & Cluster Health Connec�vity Problems Policy transparently insert security visibility + enforcement, but does so in a way that is based on service / pod / container iden�ty (in contrast to IP address iden�fica�on in tradi�onal systems) and can filter on official Kubernetes documenta�on [h�ps://kubernetes.io/docs/setup/independent/create-cluster- kubeadm/#pod-network]. Standard Installation This guides takes you through the steps required to set up Cilium

transparently insert security visibility + enforcement, but does so in a way that is based on service / pod / container identity (in contrast to IP address identification in traditional systems) and can filter for the TLS certificates between etcd peers to work correctly, a DNS reverse lookup on a pod IP must map back to pod name. If you are using CoreDNS, check the CoreDNS ConfigMap and validate that in-addr.arpa listed as wildcards next to cluster.local. You can validate this by looking up a pod IP with the host utility from any pod: host 10.60.20.86 86.20.60.10.in-addr.arpa domain name pointer cilium-etcd- 972nprv9dp

sk_msg。记录本地应用之间通信的socket，实现本地数据包的加速转发 加速同节点pod间通信 cilium 使用 eBPF 程序，借助 bpf_redirect() 或 bpf_redirect_peer() 等 helper 函数，快速帮助同宿主机间 的流量转发，节省了大量的内核协议栈 处理流程 pod 1 process kernel network stack raw pod 2 veth process kernel < 5.10 tailCall-> to-container: redirect kernel >= 5.10 redirect_peer routing veth veth kernel network stack node 加速跨节点pod间通信 pod在跨节点通 信的场景下， 借助 eBPF redirect 能力，帮 助数据包在主机物 理网卡和pod虚拟 网卡之间快速转发， 能够完全 bypass 内核协议族的处理。 在某测试场景下， 跨节点间的 pod 通 信的 tcp 性能，比 node间应用通信的 tcp 性能还稍高 woker node2 woker node1 pod1 process kernel network stack

forwarding conntrack pod source rule" -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT -A KUBE-FORWARD -d 10.217.0.0/16 -m comment --comment "kubernetes forwarding conntrack pod destination rule" -m lookup mangle FORWARD filter FORWARD mangle POSTROUTING nat POSTROUTING TC egress host httpd pod lxc0 eth0 XDP httpd httpd 1010101010111 1010101010111 1010101010111 DSR httpd httpd 1010101010111

关联分析，通过关联关系的切换，可以快速查看上游请求和下游依赖，以及自身服务实例的 运行情况，进一步提升问题定位能力，通常在已经定位到某个异常节点后使用。 实例 全栈数据源，70+个告警模板开箱即用： 应用级别：Pod/Service/Deployment K8S控制面：apiserver/ETCD/Scheduler 基础设施：节点、网络、存储 云服务界别：Kafka/MySQL/Redis/ 告警 拓扑图排查 事后复盘 拓扑图高可用、依赖分 析 面向失败、高可用设计 优化告警 主动发现 智能降噪、去重 系统性解决 系统性解决 关闭 智能告警 全栈数据源，70+个告警模板开箱即用： 应用级别：Pod/Service/Deployment K8S控制面：apiserver/ETCD/Scheduler 基础设施：节点、网络、存储 云服务界别：Kafka/MySQL/Redis/ 告警 拓扑图排查