Avinash Tietler

  Introduction to DevOps DevOps is not just about tools but it also includes a set of best practices that enables to bridge the gap between the development and operations teams in the areas of continuous integration and deployment by using an integrated set of tools to automate the software delivery. It is imperative that the developers understand the operations side and vice versa. So the goal of DevOps is simply to help any organization in the speed of delivering applications to the end-users and enabling faster end-user feedback which is the need for any business today. Overview of Agile and DevOps There is no difference between Agile and DevOps. Instead, they complement each other. Let’s start by looking at the Waterfall model where all the requirements are frozen, and design & development are done one after the other until a stable product is available. So the issue here is that if there is a change in the customer's need at this stage then there is no way to include and d...

Ansible is a powerful open-source automation tool used for configuration management, application deployment, orchestration, and task automation. It allows you to manage multiple systems in an easy-to-use, efficient manner.  Let’s break down the core concepts of Ansible: 1.  Inventory Definition : The inventory is a list of managed nodes (i.e., the servers or machines Ansible will interact with). Format : It can be defined in a simple text file ( /etc/ansible/hosts  by default) or in more dynamic formats like JSON or YAML. Grouping : Hosts can be grouped for easier targeting. Example of an inventory file: ini [webservers] server1.example.com server2.example.com [dbservers] db1.example.com 2.  Modules Definition : Modules are the units of work in Ansible. These are small programs that perform tasks like installing packages, copying files, or managing services. Types : Core modules (packaged with Ansible) and custom modules. Examples include  yum ,  apt ,...

𝗘𝘀𝘀𝗲𝗻𝘁𝗶𝗮𝗹 𝗡𝗲𝘁𝘄𝗼𝗿𝗸 𝗣𝗿𝗼𝘁𝗼𝗰𝗼𝗹𝘀 𝗘𝘃𝗲𝗿𝘆 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 𝗦𝗵𝗼𝘂𝗹𝗱 𝗞𝗻𝗼𝘄 🌐 Here are 9 essential network protocols that every developer should understand, as they form the foundation of network communication, internet connectivity, and data exchange: Network Protocol 1. HTTP/HTTPS (Hypertext Transfer Protocol / HTTP Secure) Purpose : HTTP is used for transmitting data over the web, primarily for accessing and displaying webpages. HTTPS is the secure version of HTTP that encrypts data using SSL/TLS. Why Important : Almost all web-based applications rely on HTTP/HTTPS to send and receive data. Understanding HTTP methods (GET, POST, PUT, DELETE) and status codes (200, 404, etc.) is crucial for backend development and web services. 2. TCP/IP (Transmission Control Protocol / Internet Protocol) Purpose : TCP/IP is the foundational protocol suite for the internet, handling end-to-end data transmission. TCP ensures reliable data transfer, while IP handles addre...