Groovy script in Jenkins

In this article I will host website on kubernetes using Groovy script in Jenkins from docker image. Whole process will be fully automated from creating docker image to exposing website to the client. Hence client can access this website from the webserver created.

Playing with AWS EKS

Amazon Elastic Kubernetes Service (Amazon EKS) is a fully managed Kubernetes service. Amazon Elastic File System (Amazon EFS) provides a simple, scalable, fully managed elastic NFS file system for use with AWS Cloud services and on-premises resources.

Install PostgreSQL on AWS EC2

In this post we will be installing PostgreSQL on Linux Machine and will see how we can access using pgAdmin.

Insert a node at the head of a linked list in Java HackerRank.

Insert a node at the head of a linked list in Java

Kadane’s Algorithm in Java

(Asked by all big gaint tech compaines like AMAZON, PAYTM, MICROSOFT,,etc) Basicly, kaden's algorithm is used to find the longest sum contiguous subarray.

Array Rotation in Java

Array Rotation in Java. (Asked by top MNC's like Amazon, Microsoft, goldman sachs, wipro, TCS..etc)

Set transparency level using Python Imaging Library/Pillow

Image processing can be allowed using The Python Imaging Library or PIL. Unfortunately PIL's last release was in 2009 and then it stopped getting updated. Luckily there were some Python techies who came along and forked PIL and named their project as Pillow. This project Pillow is the enhanced replacement of PIL which also supports … Continue reading Set transparency level using Python Imaging Library/Pillow

DSP Icebreaker – FFT and its interpretation. Windowing

In the first tutorial we saw how to draw a signal of given frequency. In this tutorial we will see how to observe the spectrum of a signal. We know to draw a sinusoidal signal we need two information : frequency of the signal and sampling frequency. Also Nyquist rule has to be respected. But … Continue reading DSP Icebreaker – FFT and its interpretation. Windowing