e/ eBPF 的可编程能力使其能够内核中完成包的处理和转发，而且可以添加额外扩展能力。 观测和跟踪 将 eBPF 程序附加到跟踪点以及内核和用户应用探针点的能力，使得应用程序和系统本身的 运行时行为具有前所未有的可见性 From:https://juejin.cn/post/7280746515525156918 安全 看到和理解所有系统调用的基础上，将其与所有网络操作的数据包和套接字级视图相结合，通 coredns… 系统调用异常：网络请 求，内存申请，文件操 作，CGroup… 内核异常：进程调度， 内存管理，文件管理， 夯机宕机，资源异 常… 应用组件异常：线程池满，数据库连接无法获取， OOM，文件读取错误… 无法自顶向下端到端 串联导致棘手问题频 发。 Kubernetes下的可观测 Golang + eBPF实现数据采 集 第四部分 eBPF在可观测领域的优势 kprobe ✅ tracepoint ✅ USDT ✅ perf ✅ … eBPF的编程实践 bcc libbpf + bpf + core 编程  bcc 依靠运行时汇编，将整个大型LLVM/Clang 库带入并嵌入其中  编译过程中资源用量大，对Cpu、Mem有要求  依赖内核的头包  bpf 程序跟其他的用户空间的程序没有太大区别  编译成二进制文件，可以适应不同运行环境

the hood, making them go full steam. eBPF now has a variety of libraries written in Golang, Rust, C++, and others that help loading, compiling, and debugging eBPF programs across both user and kernel all thanks to you! ❤ The eBPF for WIndows logo (puzzle pieces) is copyright Microsoft Corp. See https://github.com/microsoft/ebpf-for-windows Credits

using Azure Kubernetes Service [https://docs.microsoft.com/en-us/azure/aks/] with no CNI plugin pre-installed (BYOCNI). See Azure Cloud CLI [https://docs.microsoft.com/en-us/cli/azure/install-azure-cli? to install az and prepare your account, and the Bring your own CNI documentation [https://docs.microsoft.com/en-us/azure/aks/use-byo-cni? tabs=azure-cli] for more details about BYOCNI prerequisites / Kubernetes cluster using Azure Kubernetes Service [https://docs.microsoft.com/en-us/azure/aks/]. See Azure Cloud CLI [https://docs.microsoft.com/en-us/cli/azure/install-azure-cli?view=azure-cli-latest] for

using Azure Kubernetes Service [https://docs.microsoft.com/en-us/azure/aks/] with no CNI plugin pre-installed (BYOCNI). See Azure Cloud CLI [https://docs.microsoft.com/en-us/cli/azure/install-azure-cli? to install az and prepare your account, and the Bring your own CNI documentation [https://docs.microsoft.com/en-us/azure/aks/use-byo-cni? tabs=azure-cli] for more details about BYOCNI prerequisites / Kubernetes cluster using Azure Kubernetes Service [https://docs.microsoft.com/en-us/azure/aks/]. See Azure Cloud CLI [https://docs.microsoft.com/en-us/cli/azure/install-azure-cli?view=azure-cli-latest] for

Quick Installation Installation with managed etcd Installation with external etcd Installation on Microsoft Azure Cloud (beta) Installation on OpenShift OKD Quick Installation This guides takes you through UP-TO-DATE AVAILABLE AGE cilium-operator 2/2 2 2 2m6s Installation on Microsoft Azure Cloud (beta) This guide explains how to configure Cilium in Azure Cloud to use Azure IPAM Installation on AWS EKS Installation on Google GKE Installation on Azure AKS Installation on Microsoft Azure Cloud (beta) Installation on AWS EKS Create an EKS Cluster The first step is to create

up a managed AKS cluster: Prerequisites Ensure that you have the Azure Cloud CLI [https://docs.microsoft.com/en-us/cli/azure/install- azure-cli?view=azure-cli-latest] installed. To verify, confirm that managed secondary resource group. See Why are two resource groups created with AKS? [https://docs.microsoft.com/en-us/azure/aks/faq#why-are-two-resource-groups-created-with-aks] for more details. This ensures ixgbevf >= 4.17 i40e >= 4.13 ice >= 5.5 Marvell mvneta >= 5.5 Mellanox mlx4 >= 4.8 mlx5 >= 4.9 Microsoft hv_netvsc >= 5.6 Netronome nfp >= 4.10 Others virtio_net >= 4.10 tun/tap >= 4.14 Qlogic qede

when setting up AKS in both Basic [https://docs.microsoft.com/en-us/azure/aks/concepts- network#kubenet-basic-networking] and Advanced [https://docs.microsoft.com/en-us/azure/aks/concepts- network#azure encryption and clustermesh. Prerequisites Ensure that you have the Azure Cloud CLI [https://docs.microsoft.com/en-us/cli/azure/install- azure-cli?view=azure-cli-latest] installed. To verify, confirm that bpftool has a visual dump mode that generates a dot file instead of the plain BPF xlated instruction dump that can later be converted to a png file: # bpftool prog dump xlated id 406 visual &> output.dot

when setting up AKS in both Basic [https://docs.microsoft.com/en-us/azure/aks/concepts- network#kubenet-basic-networking] and Advanced [https://docs.microsoft.com/en-us/azure/aks/concepts- network#azure encryption and clustermesh. Prerequisites Ensure that you have the Azure Cloud CLI [https://docs.microsoft.com/en-us/cli/azure/install- azure-cli?view=azure-cli-latest] installed. To verify, confirm that bpftool has a visual dump mode that generates a dot file instead of the plain BPF xlated instruction dump that can later be converted to a png file: # bpftool prog dump xlated id 406 visual &> output.dot

probability ● Used to test disaster recovery readiness 6 cgroup-bpf infra ● twagent is written in C++ ● libbpf [0] for everything-BPF ● BPF integration with buck [1] ● BTF [2] is enabled everywhere

bp�ool has a visual dump mode that generates a dot file instead of the plain BPF xlated instruc�on dump that can later be converted to a png file: # bpftool prog dump xlated id 406 visual &> output.dot