#IstioCon Building resilient systems inside the mesh: abstraction and automation of Virtual Service generation Vladimir Georgiev, Thought Machine #IstioCon Sync calls failures inside the mesh implement this to be language agnostic? #IstioCon Virtual Services API ● Solves our problems, but… ● All Service Owners must be aware of the Virtual Services API in order to define their SLOs. ● Potential state of the service API and the Virtual Service config. ● Hard to manage when having hundreds of services. #IstioCon Abstracting to proto files Annotations API definition Greeting service example #IstioCon

Debugging the BPF Virtual Machine Lorenzo Fontana October 28, 2020 ● Debugging is useful to understand how things work ● Sometimes, eBPF programs can’t even load ● I couldn’t find good resources on this this, so, here I am ● I break lots of eBPF programs ● The BPF Virtual machine is not easy to understand Why ? The BPF subsystem lives in the kernel AND The kernel can be debugged using gdb The

Rud Merriam | A Journey into Non-Virtual Polymorphism 2 Who Doesn’t Recognize This?? 1990 Borland Turbo C++Cppcon 2023 | Rud Merriam | A Journey into Non-Virtual Polymorphism 3 Background ● Experience – Medium.com (https://medium.com/@rudmerriam)Cppcon 2023 | Rud Merriam | A Journey into Non-Virtual Polymorphism 4 Polymorphism ● Greek: “many forms” (Obligatory statement) ● The use of a single variableCppcon 2023 | Rud Merriam | A Journey into Non-Virtual Polymorphism 5 Polymorphic Variables ● Base class pointer to derived class – Virtual functions are not bad! ● Standard Template Library

cppcon_add_library(service LIBRARIES Asio::asio) add_subdirectory(tests)

carePhoto by Tech Nick on unsplashSimple benchmark class Base { public: int concrete() const; virtual int virt() const; }; void benchmark(Base *b, size_t num_iterations) { auto start = Clock::now(); virt_duration = end-start;There are interesting technical details and surprising conclusions that virtual functions can be actually faster. Since CPU architectures are mentioned, I'd expect to see deep nt-vs-inheritance-vs-other- ways-performanceDoes it even matter?Conclusions ● The notion that “virtual functions are slower” is flat out wrong. ○ Which is not to say they are faster ○ Some of the suggested

name, const NodeConfig& config) : SyncActionNode(name, config) {} // You must override this virtual function NodeStatus tick() override { std::cout << "Type: [ApproachEnemy]. Instance:" <<

#IstioCon Is Your Virtual Machine Really Ready-to-go with Istio? Kailun Qin, Intel Haoyuan Ge #IstioCon Quick Summary (from Google Cloud Next ’19 [1]) VM works on Istio! [1] Istio Service Mesh for VM Native, Chris Crall, Jianfei Hu, Google Cloud Next ‘19 #IstioCon Why Add VMs to the Mesh? ● = Why Service Mesh? ○ More services = more complexity ○ Need consistent policy enforcement ○ Need consistent Deterministic workloads with strong requirements ● For Istio ○ What is Istio? A service mesh. But more: an open service platform! ○ More use cases! ○ (Consul, Kuma…) #IstioCon Emerging Use Cases #IstioCon

Observability on Service Mesh 吴 晟 Apache SkyWalking 创始⼈人、PPMC Microsoft MVP ⽐比特⼤大陆 资深技术专家 TetrateObservability CNCF LandscapeMetric, Tracing, LoggingTraditional ObservabilityHow does agent change? Container, K8s and Service MeshProxy and SidecarIstio + Envoy Representative Service Mesh implementorSkyWalking 6.0 Observability Analysis PlatformOAP > APM• Service. Represent a set/group of define the service name when you are using instrument agents or SDKs. Or SkyWalking uses the name you defined in platform such as Istio. • Service Instance. Each one workload in the Service group is

#IstioCon Service Mesh in China 宋净超（Jimmy Song） Tetrate #IstioCon Agenda Developer Advocate at Tetrate 前蚂蚁集团云原生布道师 CNCF Ambassador ServiceMesher 及云原生社区创始人 https://jimmysong.io • ServiceMesher #IstioCon ServiceMesher 是在中国推广 Service Mesh 技术的核心力量。 Istio 是中国最流行的 Service Mesh 实现。 2018 年 5 月至今 #IstioCon ServiceMesher 大事记 • 2017 年 12 月，由数人云发起的 meetup，下一代微服务： Service Mesh is Coming • 2018 年 5 月，servicemesher 发起了 Istio 官网翻译活动 • 2019 年 3 月，社区发起了《Istio Handbook》共创活动 翻译 -> 线下交流（经验分享）->原创、实践与上游贡献 #IstioCon Service Mesh Meetup • 九届线下 meetup • 走过北京、上海、广州、深圳、杭州、成都 • 38 位讲师 • 共发表 41 场演讲 Meetup PPT 下载： https://github

2018.07.29 微博Service Mesh实践 —Weibo MeshService Mesh Meetup · BeiJing �2 微博Service Mesh实践 - WeiboMesh CONTENTS 内容提要为什什么要做跨语⾔言服务化 • 需求 • 趋势Service Mesh Meetup · BeiJing 平台体系 微博Service Mesh实践 - WeiboMesh ➢ 实时统计监控 平台微服务相关建设⽐比较完善 Notify Subscribe RegisterService Mesh Meetup · BeiJing 业务部⻔门调⽤用链 微博Service Mesh实践 - WeiboMesh �5 RPC A WEB A 平台体系 RPC B WEB B Golang 服务 PHP 服务 OR服务 …… RestFul API 4，7层冗⻓长调⽤用链及资源消耗 4,7层调度Service Mesh Meetup · BeiJing 趋势 �6 微博Service Mesh实践 - WeiboMesh 微服务 1 容器器化 2 DevOps 3 云原⽣生 4 服务治理理与业务逻辑解耦，可持续交付跨语⾔言服务化⾯面临的问题 • 改造成本 • 服务治理理Service Mesh Meetup · BeiJing