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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

  A tutorial on Github Actions

Github Actions is a CI/CD service created by Github. It aims to make it easy to automate all software workflows, now with world-class CI/CD. Build, test, and deploy code right from GitHub. It was launched in October 2018 and was officially available to all users in November 2019. This post will give an introduction of Github Actions and explain how it works. What is Github Actions Normally Continuous Integration includes some steps, fetching code, running test, sshing into remote server in...

   GITHUB,GITHUB ACTIONS,CI,CD     2019-12-23 05:33:39

  Go Lacks Ternary Operators. Here Are Some Equivalents

If you were like me, a pure Java developer before writing Go, you must be wondering why Go doesn’t support the ternary operator like return a > 1 ? 0 : 1. Most mainstream languages like C and Java are supportive of ternary operators; languages like Python and Ruby support the simplified if-else one-liner, such as a = 0 if a > 1. However, Go is not among them. And it is not only about adding operators but also a concept of coding in a more convenient way, such as the ?: expression can...

   GOLANG,TERNARY OPERATOR     2022-12-09 19:51:32

  Mastering Go Channels: How to Build Concurrent Applications Like a Pro

Introduction In the world of concurrent programming, Go channels have quickly become a popular tool for building fast and efficient applications. Utilizing channels can help you take full advantage of the power of Go's lightweight threads, or goroutines, and enable you to easily and effectively manage data sharing and synchronization. In this article, we'll dive deep into the world of Go channels and show you how to build concurrent applications like a pro. Understanding Go Channels To start, le...

   GOLANG,CHANNEL,CONCURRENCY     2023-04-21 14:47:47

  Want to make your Eclipse run faster? Try this

Lots of us may find that our Eclipse takes a long time to launch, remember how many times you want to close this heavy machine and shout "F**K". Do you know why Eclipse launches slowly? Is it because we have too many plugins installed or we have created too many projects? No, it's not. Sometimes, it's because we don't have the correct configuration. So where to start? Go to eclipse.ini. First, you may want to add below line in your eclipse.ini configuration file: -Xloggc:gc.log This is to show w...

   Eclipse,optimization,speed     2014-06-10 05:31:11

  Kualitee: For better Test Management in the year 2020

New IT trends will dominate in 2020. Big data management, customer satisfaction, security concerns, mobile apps, artificial intelligence (AI), test automation, DevOps and agile methodologies are a few of these rising technologies and trends.  With their rise, Quality assurance (QA) has to take the testing game a notch up, especially with using smart test management tools for their testing.  Test Automation Stays A report by Research and Markets estimates the global automation testing ...

   TESTING,KUALITEE     2019-09-04 07:33:25

  Understand unsafe in GoLang

Before going to understand unsafe package in GoLang, the first thing needs to talk about is the pointer in GoLang. If you have a background of C language, you must know what pointer means and its usage. With pointer, you are free to operate any data at memory level which means you have great power, but this means that you have great responsibility as well. That's why it might be considered unsafe in lots of cases. Take a look at a simple example of doubling an integer. package main import "fmt"...

   GOLANG,UNSAFE,ZERO-COPY     2020-03-14 23:18:00

  SIEM Big Data Visualization [04] : Data Transmission Latency SIEM Log Analysis Dashboard

This article will introduce the Data Transmission Latency Log Analysis Dashboard developed for SIEM big data analytics. This is part of the SIEM big data visualization project, if you are interested about other dashboard plug in, you can check below links: SIEM Big Data Visualization [01] : Dashboard for Monitoring Scam Events in Critical Infrastructure SIEM Big Data Visualization [02] : Dashboard for Summarizing SG National Cyber Threats in Critical Infrastructure SIEM Big Data Visualization [...

       2024-11-03 20:49:18

  Why Apple Mac switches its CPU? The war between Intel and ARM

About three months ago, the new iPad Pro was released and it supports touch pad and mouse. It conveys a clear message to users that they want people to treat iPad Pro as a laptop.  As we know, iPad and iPhone are both using iOS, if iOS can run on laptop,  it means MacOS and iOS can merge and become a unified OS. And if Mac and iPhone can share the same OS, it means the same app can run in all places. It is becoming clearer and clearer that Apple is planning to do this exact thing. Late...

   APPLE,INTEL,ARM,WWDC,A14     2020-06-20 00:19:02

  9 reasons to use Zsh

Like majority *nix users, I have been using bash for many years. Sometimes I feel uncomfortable with bash. I tried use some other shells as well such as ksh, tcsh and zsh which I am going to talk about. A few days ago, I found an open source project ranking in the 6th named oh-my-zsh on Github, I downloaded it and had a try with it. It's amazing. We should use zsh to replace bash now. Why do we need to use zsh? Here is a 4 minutes YouTube video which shows many reasons why we should switch from ...

   zsh, advantage, command     2012-09-28 12:46:39

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