Saniul Ahsan

#javascript, #python, #microservices, #automations, #blockchains, #devops

Author: saniul_ahsan

Improve technical writing skills

Improving your technical writing skills is crucial for effectively communicating complex information. Here are some tips to enhance your technical writing: Remember that improving technical writing is an ongoing process. Be patient and committed to refining your skills over time.

Backup Couchbase Database with Kubernetes CronJob

Creating a backup CronJob for Couchbase in Kubernetes involves setting up a scheduled task that triggers backups at specified intervals. Here’s an outline of steps to achieve this: 1. Set Up Couchbase Backup Script: You’ll need a script or tool to perform the Couchbase backups. Couchbase provides cbbackupmgr for backups. Ensure this tool or a
Read More

Helm Chart 101

Helm is a package manager for Kubernetes that simplifies the deployment and management of applications on a Kubernetes cluster. It helps in defining, installing, and upgrading even complex Kubernetes applications using configurations called Helm charts. Here’s a basic rundown of Helm concepts: Helm Commands: Basic Workflow: Installation: Basic Commands: Best Practices: Helm simplifies Kubernetes application
Read More

Connect Hardhat to Ganache and Deploy a Contract

Introduction: In the world of Ethereum smart contract development, having a smooth workflow is essential. In this tutorial, we’ll walk you through the process of connecting Hardhat, a popular Ethereum development environment, to Ganache, a personal blockchain for Ethereum development. We’ll also cover how to write a simple smart contract and deploy it using Hardhat
Read More

Secure MongoDB Cluster Using Docker Compose

Setting up a secure MongoDB cluster using Docker Compose. In this example, we’ll create a MongoDB replica set with authentication enabled. Make sure you have Docker and Docker Compose installed on your system before proceeding. Create a directory for your MongoDB cluster setup and navigate to it: Create a file named docker-compose.yml and add the
Read More

Secure and Seamless: Demystifying SSH Tunneling

In today’s interconnected digital landscape, maintaining data security and privacy is of paramount importance. One powerful tool that provides both security and flexibility is SSH tunneling. SSH (Secure Shell) tunneling allows you to create an encrypted connection between two devices, enabling secure data transmission over potentially insecure networks. In this article, we’ll dive into the
Read More

Docker Setup For a NestJS Application

This setup includes a Node.js server using NestJS, a PostgreSQL database, and utilizes Docker for containerization. Docker Compose File (docker-compose.yml): Dockerfile: Explanation: This setup allows you to easily containerize and deploy your NestJS application along with a PostgreSQL database using Docker Compose. Remember to adjust environment variables, database credentials, and other configuration parameters as needed
Read More

Ansible Playbook Configurations For Various Tasks

1. Install Packages on Ubuntu/Debian: 2. Copy Files to Remote Hosts: 3. Create User and Set Password: 4. Restart Service: 5. Manage System Packages on CentOS/RHEL: 6. Create Directory and Set Permissions: 7. Execute Commands on Remote Hosts: 8. Manage Firewall Rules: 9. Create and Use Variables: 10. Use Conditionals:

Ansible 101

Starting with Ansible is an exciting step towards automating your IT tasks and improving your infrastructure management. Here’s a beginner’s guide to get you started with Ansible: 1. Install Ansible: Begin by installing Ansible on your machine. Ansible runs on Linux, macOS, and even Windows Subsystem for Linux (WSL). You can install it using package
Read More

Exploring Ansible’s Versatility and Limitations

In today’s fast-paced world, where technology is advancing at an unprecedented rate, the need for efficient IT operations has never been greater. This is where Ansible, an open-source automation tool, steps in to revolutionize the way IT tasks are managed and executed. With its robust capabilities, Ansible has gained immense popularity among developers, system administrators,
Read More