This document introduces Node.js, a platform for building scalable server-side web applications using JavaScript. It provides a brief history of Node.js, describes its key features like non-blocking I/O and the V8 JavaScript engine. Examples are given for building HTTP servers and clients. Common modules for file system access, child processes and more are demonstrated. The performance of Node.js is highlighted for building real-time applications that handle many concurrent connections with few system resources.
You can enjoy desktop development with Node.js and HTML5/CSS/WebGL right now. Here we also to announce that Stem project which is a JavaScript operating system, it makes developers be able to make things on embedded system with JavaScript only. There is no need to understand that difficult knowledge about embedded system when you work on Stem OS.
Node.js实践 is a document about Node.js. It discusses how Node.js allows JavaScript to be used for server-side applications by providing a fast, scalable, and flexible environment. Node.js uses a single thread with non-blocking I/O and the V8 JavaScript engine. It also uses an event-driven architecture. This allows JavaScript to be used beyond just client-side applications in the browser. It also discusses how libraries like YUI3 and jQuery can be used in Node.js applications both on the front-end and back-end.
The challenge - testing the oVirt projectEyal Edri
The document summarizes a presentation about using Foreman, Puppet, and oVirt to build an automated testing framework for the Jenkins continuous integration server. The framework provisions virtual and physical machines from a pool managed by Foreman using Puppet configuration profiles. It integrates with Jenkins through a Foreman plugin that allows jobs to request machines with specific profiles. This allows complex virtualization projects to be tested in Jenkins efficiently and reproducibly without needing many physical resources. Screenshots and a demo were provided of the Foreman web interface, command line usage, and oVirt management console.
This document introduces Node.js, a platform for building scalable server-side web applications using JavaScript. It provides a brief history of Node.js, describes its key features like non-blocking I/O and the V8 JavaScript engine. Examples are given for building HTTP servers and clients. Common modules for file system access, child processes and more are demonstrated. The performance of Node.js is highlighted for building real-time applications that handle many concurrent connections with few system resources.
You can enjoy desktop development with Node.js and HTML5/CSS/WebGL right now. Here we also to announce that Stem project which is a JavaScript operating system, it makes developers be able to make things on embedded system with JavaScript only. There is no need to understand that difficult knowledge about embedded system when you work on Stem OS.
Node.js实践 is a document about Node.js. It discusses how Node.js allows JavaScript to be used for server-side applications by providing a fast, scalable, and flexible environment. Node.js uses a single thread with non-blocking I/O and the V8 JavaScript engine. It also uses an event-driven architecture. This allows JavaScript to be used beyond just client-side applications in the browser. It also discusses how libraries like YUI3 and jQuery can be used in Node.js applications both on the front-end and back-end.
The challenge - testing the oVirt projectEyal Edri
The document summarizes a presentation about using Foreman, Puppet, and oVirt to build an automated testing framework for the Jenkins continuous integration server. The framework provisions virtual and physical machines from a pool managed by Foreman using Puppet configuration profiles. It integrates with Jenkins through a Foreman plugin that allows jobs to request machines with specific profiles. This allows complex virtualization projects to be tested in Jenkins efficiently and reproducibly without needing many physical resources. Screenshots and a demo were provided of the Foreman web interface, command line usage, and oVirt management console.
The document discusses new storage features in oVirt 3.5 including live merge to merge VM snapshots without shutting down the VM, snapshot overview to manage disk space across storage domains, and importing existing data domains to detach, attach, or import storage domains between data centers. It also covers using Sanlock for storage-based fencing to fence malfunctioning hosts through the storage infrastructure.
This document summarizes the oVirt community activity report from July 22, 2014. It outlines the upcoming release versions of oVirt 3.4.3 and 3.5, new features planned for each release including hosted engine on ISCSI and providing a Neutron appliance. It also lists related mailing lists, wikis, and new subprojects being developed for oVirt.
oVirt UI Plugin Infrastructure and the oVirt-Foreman pluginOved Ourfali
This document discusses the oVirt UI plugin infrastructure and the oVirt-Foreman plugin. The oVirt UI plugin infrastructure allows extending or customizing the oVirt Engine Admin Portal functionality by adding UI components. The oVirt-Foreman plugin integrates Foreman data into the oVirt Admin Portal using this infrastructure, displaying Foreman details and graphs for virtual machines. Future work may include improved integration between oVirt and Foreman systems and management of plugins from within the Admin Portal.
Live Storage Migration in oVirt (Open Storage Meetup May 2013)Allon Mureinik
The document discusses live storage migration in oVirt, which allows moving one or more VM disks from one storage to another without interrupting guest operations. This facilitates storage upgrades and smarter disk provisioning. Live storage migration works by taking a live snapshot of the disk, replicating the changes to a new disk on the target storage, and then completing the migration by switching the disk to the target storage and deleting the snapshot. Future work may integrate live merge to avoid keeping snapshots and allow migrating multiple disks or combining with live VM migration.
Disaster Recovery Strategies Using oVirt's new Storage Connection Management ...Allon Mureinik
A short overview of oVirt 3.3's Storage Connection Management feature, and several examples how this feature can be used in Disaster Recovery strategies.
oVirt and OpenStack look kind of similar from a distance. But they cater to different use-cases. That said, they do have some common needs. How can they work together? And when is it better to use one over the other?
This document provides an overview of Infrastructure as a Service (IaaS) cloud computing. It discusses the history and definitions of cloud computing, compares popular cloud platforms like AWS, OpenStack, CloudStack and Eucalyptus. It also explains key concepts in cloud computing like virtualization, containers, APIs, automation etc. Examples of how IaaS can benefit companies of different sizes are provided. The document encourages interaction and provides contact information for the cloud computing community.
This document summarizes key points from various essays and talks by Paul Graham. It discusses how starting a startup is one of the best ways to get rich. Wealth is created by making good things, not just acquiring money. As a programmer, Lisp is highlighted as a different programming language. Good design solves problems and looks easy but is actually hard. Hackers and painters are trying to make good things, along with other creative fields. Innovation has slowed and creative people are not being paid properly for their work.
The document discusses oVirt and why open source matters. It begins with an introduction and contact information for the presenter. It then discusses sharing information as a team and company practice. Next, it provides an overview of oVirt, including its background, features, and demo. It also discusses case studies. Finally, it discusses why open source matters, including development models and business relationships, and compares OpenStack. It concludes by thanking the audience and asking for questions.
This document provides an agenda for a presentation on Oz, an open source tool for automating the installation of guest operating systems in virtual machines. It lists Oz's key features such as supporting different Linux distributions and Windows images. It also outlines how Oz works by using predefined kickstart and preseed files to install operating systems and interacting with KVM. The document concludes with instructions for a demo of using Oz to install Windows in a virtual machine template.