EKS Cluster AutoScaler

The Amazon EKS AutoScaler automatically adjusts the number of worker nodes in an Amazon EKS cluster based on resource utilization and scaling demands.

Before we started using EKS Cluster Autoscaler, managing node scaling in our Kubernetes cluster was a constant struggle. Here’s what we were dealing with:

High Costs: We had to keep extra EC2 nodes running all the time to avoid pod scheduling issues — even when they weren’t being used.

Pod Failures: If we tried to reduce node count to save money, pods would often stay Pending due to lack of resources.

Manual Work: Scaling nodes up or down was a manual task—time–consuming and error–prone.

Slow Deployments: During deployments or traffic spikes, our workloads would get stuck because there weren’t enough resources.

Unpredictable Demand: Our workloads change frequently, but our cluster capacity doesn’t— leading to overuse or underuse of nodes.

These challenges pushed us to explore Cluster Autoscaler, and it turned out to be a game–changer

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Comparison of Confluent Kafka On-prem vs Confluent Kafka on Azure vs Azure Events Hub

Why Compare Confluent Kafka On-Premises, Confluent Kafka on Azure, and Azure Event Hubs?

When it comes to event streaming, choosing the right platform isn’t just a technical decision — it’s a strategic one. The wrong choice could leave you battling performance bottlenecks, spiraling costs, or operational headaches.

So, what’s the challenge?

Each solution — Confluent Kafka On-Prem, Confluent Kafka on Azure, and Azure Event Hubs — brings distinct strengths to the table. Understanding those differences is crucial to finding the perfect fit for your architecture.

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Cybersecurity Roadmap: Part 1 – A Step-by-Step Guide

Introduction to Cybersecurity

In today’s tech-driven landscape, cybersecurity has become essential rather than optional. As businesses and individuals increasingly depend on technology for storing, processing, and sharing information, the dangers posed by cyber threats have surged dramatically. Cybersecurity is all about protecting systems, networks, and data from unauthorized access, destruction, or theft.

With the rise of ransomware attacks, phishing scams, and data breaches, cybercriminals are continually adapting their methods. This reality underscores the importance for organizations of every size to take a proactive and strategic stance in safeguarding their digital resources. By cultivating a robust cybersecurity strategy, companies not only protect sensitive information but also foster customer trust and ensure smooth business operations.

1. Foundation Building For CyberSecurity

Cryptography and PKI

Books:

“Applied Cryptography” by Bruce Schneier.
“Cryptography and Network Security” by William Stallings.

Key Topics:

Symmetric vs. Asymmetric Cryptography (AES, RSA, ECC).
Key Management and Distribution (HSMs, key rotation policies).
Certificates, PKI, and X.509 Standard.

Tools:

OpenSSL: Practice generating keys, and signing certificates.

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Extract Text from PDF using PyMuPDF (fitz)

This Python script demonstrates how to extract text from a PDF document using the PyMuPDF (also known as fitz) library. PyMuPDF is a lightweight and efficient library for working with PDF documents, XPS files, and eBooks.

Objective:

This Python script demonstrates how to extract text from a PDF document using the PyMuPDF (also known as fitz) library. PyMuPDF is a lightweight and efficient library for working with PDF documents, XPS files, and eBooks. It provides functions to extract text, images, and metadata, enabling developers to manipulate and analyze PDF documents with ease.

Requirements:

To use this script, you need to have PyMuPDF installed in your Python environment. You can install it using the following command:

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