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  Build a Kubectl Plugin from Scratch

by author The command-line tool kubectl is indispensable when using Kubernetes. You need it to query related Pod and Service information both in developing or performing some maintenance operations, such as events, scale, rolling update, etc. However, when using kubectl, there are many inconveniences. Though Kubernetes is officially maintaining kubectl¹, and you can submit the problems, improvement, and even PR in its Github Issues, you still have to wait long before its release. The m...

   KUBENETES,KUBECTL,PLUGIN,GOLANG     2020-12-02 03:43:16

  Rediscovering the RSync Algorithm

A:Ok, you’re synchronizing this over the web; and what do you use for the synchronization? B: Oh, we implemented the rsync algorithm. A: uhu. And what do you do with really big files? B: The same. A: And you also synchronise folders? B: Yes. A: And how do you do that? B: we iterate over the folder, using the algorithm on every file, recursing over subfolders. A: Can you try 2 things for me? First, a very large file; and second, a large codebase, and see if it holds. Introduction First ...

   ReSync algorithm,Discovery     2012-02-14 10:47:24

  Top 10 Reasons to Use HTML5 Right Now

So you’re still not using HTML5, huh? I guess you probably have your reasons; it’s not fully adopted yet, it doesn’t work in IE, you don’t like users, you’re out of touch or you are just passionately in love with writing strict XHTML code. HTML5 is the revolution that the web needed and the fact is, it is the future whether you like it or not — suck it up and deal. HTML5 isn’t hard to use or understand and even though it’s not fully a...

   HTML5,Accessibility,Cross browser compatibility     2011-12-08 02:52:38

  Asynchronous UIs - the future of web user interfaces

It's an interesting time to be working on the frontend now. We have new technologies such as HTML5, CSS3, Canvas and WebGL; all of which greatly increase the possibilities for web application development. The world is our oyster!However, there's also another trend I've noticed. Web developers are still stuck in the request/response mindset. I call it the 'click and wait' approach - where every UI interaction results in a delay before another interaction can be performed. That's the process they'...

   AJAX,Asynchronous UI,AUI,User interface     2011-11-18 08:55:08

  Difference Engine: Luddite legacy

AN APOCRYPHAL tale is told about Henry Ford II showing Walter Reuther, the veteran leader of the United Automobile Workers, around a newly automated car plant. “Walter, how are you going to get those robots to pay your union dues,” gibed the boss of Ford Motor Company. Without skipping a beat, Reuther replied, “Henry, how are you going to get them to buy your cars?”Whether the exchange was true or not is irrelevant. The point was that any increase in productivity required...

   Artificial intelligence,Engine,Difference,Human,Computer     2011-11-07 08:33:16

  Microsoft wakes up to Open Source … in a big way!

Contrary to popular belief, Microsoft loves open-source. No, really! Don’t believe me? Read on: Today, Microsoft announced that it is open-sourcing all of its flagship web/cloud platform: ASP.NET MVC Web Pages (aka Razor), Web API. Importantly … these projects will be publicly hosted and that the team will continue development in the open (you’ll be able to view the repository and see the code commits as they happen) and that Microsoft will even cons...

   Oepn source,Microsoft,Ruby     2012-04-01 04:23:42

  Scala feels like EJB 2, and other thoughts

At Devoxx last week I used the phrase "Scala feels like EJB 2 to me". What was on my mind?ScalaFor a number of years on this blog I've been mentioning a desire to write a post about Scala. Writing such a post is not easy, because anyone who has been paying attention to anti-Scala blog posts will know that writing one is a sure fire way of getting flamed. The Scala community is not tolerant of dissent.But ultimately, I felt that it was important for me to speak out and express my opinions. As I s...

   Scala,Module,EJB,Concurrency,Feature     2011-11-22 08:29:44

  Functional Programming in C++

Probably everyone reading this has heard “functional programming” put forth as something that is supposed to bring benefits to software development, or even heard it touted as a silver bullet.  However, a trip to Wikipedia for some more information can be initially off-putting, with early references to lambda calculus and formal systems.  It isn’t immediately clear what that has to do with writing better software. My pragmatic summary:  A large fraction of th...

   C++,Functional programming     2012-04-28 06:16:37

  Why Software Is Eating The World

This week, Hewlett-Packard (where I am on the board) announced that it is exploring jettisoning its struggling PC business in favor of investing more heavily in software, where it sees better potential for growth. Meanwhile, Google plans to buy up the cellphone handset maker Motorola Mobility. Both moves surprised the tech world. But both moves are also in line with a trend I've observed, one that makes me optimistic about the future growth of the American and world economies, despite the...

   software,quota,internet world,eat up     2011-08-22 12:06:40

  Put Your HTML in a Box

In the first article in this series, I walked through the basics of cascading style sheets (CSS) and showed how CSS can make your code easier to maintain. CSS allows you to keep your presentation rules separate from your content, and I showed you some of the benefits this separation provides. In this article, I’ll move forward with CSS and describe how to position elements on a page.The first step in understanding how to position elements is to understand the fundamental model of CSSâ€...

   HTML,Box,Div,Container,Format     2011-08-19 08:22:58

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