My remote MySQL database is located in a fully secured network and if I wanted access the db first had to ssh to Bastion Server and then to Deployment server and then connect to the database using mysql connection string. After doing some R&D work found following method to map…

Working as a Dev Engineer from the day I started my IT career I wanted check my DevOps skills, so this is the first ever interview experience I had in a devops role. These are the questions they asked: Ansible What is Ansible and usage Terraform: What is Terraform and usage? What is the advantages of using Terraform? How to manage the Terraform State? What happens if resources created by terraform is changes manually?

I wanted to download a large file using my night time internet data. Yes I live in a country where no unlimited data is provided. I my requirement was to clone a git repository which is around 5GB. Generally CronTab is nice tool available in any linux environment. …

Let’s install MySQL server 5.7 as Docker container with an external volume. Hope you already installed Docker in your environment :) 01: Create Docker Container Create the docker volume to store files. docker volume create nuwan-mysql-bizao # output: nuwan-mysql-bizao List the volumes to see our volume is created. docker volume ls #output: local nuwan-mysql-bizao …

I was looking at the methods how can we manage multi repository git projects to make a single final release. Git Meta Repositories and Git Submodules were some options had to review. Let me explain how did I do this with Git Sub Modules. My requirement was to release the…

In the traditional client-server authentication model, if we are to provide a third party to access a restricted resource, resource owner must share its credentials. This creates several problems and limitations, obviously :) Owner can’t revoke access if required as the others who using the credentials may effect. User will…

Concurrent programming is a form of computing where threads can run simultaneously. This allows problem to be executed out of order without effecting the final outcome. Advantages are, significantly improve overall speed of the execution in multi-processor systems. In more technical terms, concurrency refers to the decomposability of a problem…

When we want to transmit a message over the network, it must be converted to a stream of bytes and that conversion process is known as serialization. Once the message is transmitted to the destination it should be converted back to the message known as de-serialization. Serialization can convert a…

Infrastructure-as-Code (IaC) is a practice used in public cloud providers, such as AWS, GCP, and Azure. In a nutshell, it consists of managing a set of resources (computing, network, storage, etc.) using the same approach developers use to manage application code. In this tutorial, we’ll do a quick tour of…