------ {{ range $m := Masters }} loadBalancerAttachment/api-elb-attachment.{{ $m.Name }}.{{ ClusterName }}: loadBalancer: loadBalancer/api.{{ ClusterName }} autoscalingGroup: autoscalingGroup/{{ Utility/Public subnet # - 1 NGW for the private subnet to NAT to # - 1 Route Table Association to the Main Route Table # - 1 Private subnet (to hold the instances) # ---------------------------- Utility/Public subnet # - 1 NGW for the private subnet to NAT to # - 1 Route Table Association to the Main Route Table # - 1 Private subnet (to hold the instances) # ----------------------------

旧金山湾区成立，致力于推动开源项目和社区以及商业化 8 面向大数据和AI应用的内存级数据编排系统 数据编排层(Data Orchestration) Java File API HDFS Interface S3 Interface REST API POSIX Interface Alluxio是什么 HDFS Driver S3 Driver OSS Driver Web Driver Alibaba /path1/file1 /path2/file2 C A B C A Alluxio 服务器 Alluxio 服务器 大数据查询 大数据ETL 模型训练 Alluxio核心功能二：灵活多样的数据访问API Alluxio 服务器 HDFS接口客户端 POSIX接口客户端 Alluxio 服务器 Alluxio 服务器 大数据查询 大数据ETL 模型训练 Alluxio核心功能三：统一的文件系统抽象 config.yaml properties: fs.oss.accessKeyId: xxx fs.oss.accessKeySecret: yyy alluxio.master.mount.table.root.ufs: oss://imagenet-huabei5/ EOF # One click install $ helm install -f config.yaml alluxio-repo/alluxio

Cluster DNS record: pod1.clusterdomain pod2.clusterdomain ... Service�Endpoints�� Service ���� API Server Services etcd Pods Endpoints Controller Manager Node Node … Load Balancer Iptables vs. IPVS ���IPVS�IP Virtual Server� • Linux�����L4 LB�LVS������� • ��netfilter, hash table • ��TCP, UDP�SCTP���IPV4�IPV6 • ���������� Ø rr, wrr, lc, wlc, sh, dh, lblc… • ������ Ø persistent 192.168.60.200:80 -r 172.17.1.2:80 –m # ipvsadm -a -t 192.168.60.200:80 -r 172.17.2.3:80 –m ���� API Server Kube-proxy seesaw Pod Pod Pod Real Server Service IP (Virtual Server) Client netlink

OpenCost 79. OpenRewrite 80. OrbStack 81. Pixie 82. Tabnine 暂缓 — 采纳 83. Playwright 试验 84. .NET Minimal API 85. Ajv 86. Armeria 87. AWS SAM 88. Dart 89. fast-check 90. Kotlin with Spring 91. Mockery 92. Netflix OpenTelemetry 94. Polars 95. Pushpin 96. Snowpark 评估 97. 基准配置文件 98. GGML 99. GPTCache 100. 语法性别 API 101. htmx 102. Kotlin Kover 103. LangChain 104. LlamaIndex 105. promptfoo 106. Semantic Kernel 107 构文件一样最终被归档和遗忘。 3. 具有可访问性意识的组件测试设计 试验 在软件交付进程中，可访问性要求是 Web 组件测试阶段的一种考察指标。尽管诸如 chai-a11y-axe 的测试框架 插件 API 已提供了基础的可访问性断言，具有可访问性意识的组件测试设计依然能够帮助测试进一步检验屏幕 阅读器和其他辅助技术所需的全量语义元素。 首先，在测试验证元素时，通过 ARIA 角色或者元素的其它语义化属性查找元素，而不采用元素的

kubeadm init --kubernetes- version=v1.19.4 \ --apiserver-adver�se- address=10.99.1.51 \ # api server地址 --pod-network-cidr=10.244.0.0/16 \ # pod容器网段 --service-cidr=10.7.0.0/16 \ # service网段，即cluster kubeadm init --kubernetes- version=v1.28.2 \ --apiserver-adver�se- address=10.99.1.51 \ # api server地址 --pod-network-cidr=10.244.0.0/16 \ # pod容器网段 --service-cidr=10.7.0.0/16 \ # service网段，即cluster 高可用集群拓扑图： ★先配置HA高可用的反向代理 本例中vip为10.99.1.54（三台master ip为10.99.1.51~53）使用haproxy做反向代理 frontend k8s_api_tcp_6443 bind *:6443 mode tcp default_backend my_k8s_cluster_6443 backend my_k8s_cluster_6443

1.26 1.27 1.28 1.29 1.30 Table of Contents Introduction 01-什么是Kubernetes 02-安装单机版Kubernetes 03-使⽤Kubespray部署⽣产可⽤的Kubernetes集群（1.11.2） 04-K8s组件 05-Kubernetes API 06-理解K8s对象 07-Name 08-Namespace 允许⽤户使⽤⾃定义信息来装饰资源以⽅便他们的⼯作流程， 并为管理⼯具提供检查点状态的简单⽅法。 此外， Kubernetes control plane 所⽤的API 与开发⼈员和⽤户可⽤的API相同。⽤户可以使⽤ their own API 编写⾃⼰ 的控制器，例如 scheduler ，这些API可由通⽤ command-line tool 定位。 这种 design 使得许多其他系统可以构建在Kubernetes上。 io/article/8136 启⽤Kubernetes Dashboard 执⾏： kubectl proxy 02-安装单机版Kubernetes 8 访问： http://localhost:8001/api/v1/namespaces/kube-system/services/https:kubernetes-dashboard:/proxy/#!/overview? namespace=default

Install API server - Config them correctly - Start them Installation - etcd - SSH - Install etcd - Config them correctly - Start them Installation kops, kubeup.sh, kube-AWS,... AWS, GCP API node1 AWS, GCP API node1 node2 node3 Rollback ??? AWS, GCP API node1 node2 node3 Healing AWS, GCP API node2 node3 Healing AWS, GCP API node2 node3 node1’ Create node Healing AWS, GCP API node2 node3 self-hosted Kubernetes? ● Kubernetes manages own core components ● Core components deployed as native API objects Self-hosted k8s Architecture Why Self-host Kubernetes? ● Operational expertise around app

Highest Level • Container Cluster = “Desired State Management” – Kubernetes Cluster Services (w/API) • Node = Container Host w/agent called “Kubelet” • Application Deployment File = Configuration File be running Worker Node Worker Node Worker Node Kubernetes Master Node (Master & etcd nodes) API K K K App_Y.yaml ContainerImage1 Replicas: 1 ContainerImage2 Replicas: 2 https://youtu.be/PH-2FfFD2PU Master API Cluster A Worker Worker Worker Kubernetes Master API Cluster B Operator Developer Architecture PKS Controller IaaS Worker Worker Kubernetes Cluster Services API Cluster3

targetAverageUtilization: 50 • API Object Oriented Programming Core of API “OO” 1.API objects stores in etcd 2.Control loops (Sync Loop) to reconcile API objects Example kubelet SyncLoop proxy proxy 1 Pod created etcd scheduler api-server Example kubelet SyncLoop kubelet SyncLoop proxy proxy 2 Object added etcd scheduler api-server Example kubelet SyncLoop kubelet SyncLoop a node etcd scheduler api-server Example kubelet SyncLoop kubelet SyncLoop proxy proxy 4.1 Detected bind operation 4.2 Start Pod on this machine etcd scheduler api-server Pattern 1: Controller

Services (Networking, Storage, DNS, Load Balancer, Security) master master api api © 2017 Rancher Labs, Inc. Kubernetes 1.7的扩展特性 • API aggregation(beta) • CustomResourceDefinitions(beta) • Support for extensible flexible way to extend managed resource into a current Kubernetes cluster • Auto-generated API in Kubernetes API server • Customized resource controller to implement your business logic of managed resource and Resource Item my-crontab.yaml © 2017 Rancher Labs, Inc. How Does The Controller Work ETCD API Server Kubernetes Core controllers added creating running stoped deleted Resource Item Resource