Node Operator: Kubernetes Node Management Made Simple 陈俊(Joe), Ant Financial Agenda • Background and Motivation • Introduction of Operators • Node-Operator • Advanced Topic: Teardown Cluster fast and convenient • Add & delete Node at any time • Upgrade Master & Node Components reliably • Canary Rollout • Master & Node Component Versions Management Motivation: Work Order Order Deployment Worker Order • Upgrade Nodes Versions • Upgrade Node 10.10.10.1 • Upgrade docker • Upgrade kubelet • Upgrade Node 10.10.10.2 • Upgrade docker • Upgrade kubelet …. Motivation: Work Order

1 Table of Contents Preface The Node.js Handbook Conclusion 2 Preface The Node.js Handbook follows the 80/20 rule: learn in 20% of the time the 80% of a topic. In particular, the goal is to get get you up to speed quickly with Node.js. This book is written by Flavio. I publish programming tutorials on my blog flaviocopes.com and I organize a yearly bootcamp at bootcamp.dev. You can reach me The Node.js Handbook 1. Introduction to Node.js 1.1. Node.js has a vast number of libraries 1.2. An example Node.js application 1.3. Node.js frameworks and tools 2. A brief history of Node.js 2

Node.js - the core Mark Volkmann mark@ociweb.com Object Computing, Inc. April 21, 2012 Node.js Overview ... “Node's goal is to provide an easy way to build scalable network programs.” http://nodejs building “servers” “The official name of Node is "Node". The unofficial name is "Node.js" to disambiguate it from other nodes.” https://github.com/joyent/node/wiki/FAQ Runs on top of Chrome V8 (see next Joyent 2 passed control of the project to Isaac Schlueter on 1/30/12 a cartoon from substack Node.js ... Overview Event-based rather than thread-based; can use multiple processes Assumes most time

Red Hat build of Node.js 18 Release Notes for Node.js 18 For use with Node.js 18 LTS Last Updated: 2023-01-31 Red Hat build of Node.js 18 Release Notes for Node.js 18 For use with Node.js 18 LTS Legal the European Union and other countries. Node.js ® is an official trademark of Joyent. Red Hat is not formally related to or endorsed by the official Joyent Node.js open source or commercial project. The of their respective owners. Abstract This Release Note contains important information related to Node.js 18 LTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Sebastian Toader & Zsolt Varga 2021-Feb-26 Apache Kafka with Istio on K8s 2 • Scalability • Resiliency • Security • Observability • Disaster recovery Production grade Apache Kafka on Kubernetes certificate attached automatically by Istio Proxy sidecar container • Client certificate includes the K8s service account of the Kafka client application • SPIFE:///ns//sa/

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Node.js* Client & Web Bridge Ready for ROS* 2.0 Minggang Wang September 30 2018 Agenda ● Who We Are ● Why Use Node.js & Web in Robotics ● Thinking in “ROS 2.0 + Web” ● What We Have Done for “ROS + Web” ● The Design of rclnodejs & ros2-web-bridge ● List of Features ● Performance Comparison: Node.js, C++ & Python ● Video Demo ● Intel Robot ● Contacts & Resource Links 2 3 Who we are package system in the world ● Easy deployment & debugging ● Naturally for web interface Why Use Node.js & Web in Robotics Benchmark Link NPM* is the largest package system in the world (>600k) ● Web

Scaling a Multi-Tenant k8s Cluster in a Telco Pablo Moncada October 28, 2020 About MasMovil group ● 4th telecom company in Spain ● Provides voice and broadband services to +12M customers ● Several

Example kubelet SyncLoop kubelet SyncLoop proxy proxy 3.1 New Pod detected 3.2 Bind Pod to a node etcd scheduler api-server Example kubelet SyncLoop kubelet SyncLoop proxy proxy 4.1 Detected auto-scaling My Awesome Object I have my own special case Demo • I want to have a Asta Xie object into k8s API • I want a controller to handle add/update/delete of all Asta Xie instances $ kubectl get astaxie Kubernetes Custom Controller User operation A Real World Example • I want to have a Network object into k8s API • I want a controller to handle add/update/delete of all Network instances • onAdd: create

packets emitted by the application containers, allowing to validate the identity at the receiving node. Security identity management is performed using a key-value store. Secure access to and from external means that each host can allocate IPs without any coordination between hosts. The following multi node networking models are supported: Overlay: Encapsulation-based virtual network spanning all hosts EDT-based (Earliest Departure Time) rate-limiting with eBPF for container traffic that is egressing a node. This allows to significantly reduce transmission tail latencies for applications and to avoid locking

packets emitted by the application containers, allowing to validate the identity at the receiving node. Security identity management is performed using a key-value store. Secure access to and from external means that each host can allocate IPs without any coordination between hosts. The following multi node networking models are supported: Overlay: Encapsulation-based virtual network spanning all hosts EDT-based (Earliest Departure Time) rate-limiting with eBPF for container traffic that is egressing a node. This allows to significantly reduce transmission tail latencies for applications and to avoid locking