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A collection of 18 posts

How to Avoid Issues with Docker Compose Due to Same Folder Names | Project Isolation Best Practices

How to Avoid Issues with Docker Compose Due to Same Folder Names | Project Isolation Best Practices

Introduction Docker Compose is a powerful tool for managing multi-container applications, but it has a hidden gotcha that can cause significant headaches in development environments. When working on multiple projects within the same machine or VM, Docker Compose automatically uses your project's root directory name as the default

How to Serve Static Files in Django with WhiteNoise

How to Serve Static Files in Django with WhiteNoise

Introduction Static file handling in Django production environments can be complex. When you deploy a Django application, you need to serve CSS, JavaScript, images, and other static assets efficiently. While Django's built-in static file handling works for development, it's not suitable for production due to performance

How to Use Kubernetes Reflector | Simple Secret Management Across Namespaces

How to Use Kubernetes Reflector | Simple Secret Management Across Namespaces

Introduction Managing Kubernetes secrets across multiple namespaces is a common pain point for DevOps teams. Manually creating and maintaining identical secrets in every namespace not only increases operational overhead but also introduces security risks through inconsistent configurations. Kubernetes Reflector solves this challenge by automatically replicating secrets across namespaces, ensuring consistency

How to Implement S3-Based DAG Management for Apache Airflow | Enterprise-Grade Workflow Orchestration

How to Implement S3-Based DAG Management for Apache Airflow | Enterprise-Grade Workflow Orchestration

Introduction Apache Airflow has become the de facto standard for workflow orchestration in modern data engineering and DevOps environments. However, traditional DAG management approaches often create operational bottlenecks that significantly impact development velocity and system reliability. This article explores how implementing S3-based DAG management can transform your Airflow deployment from

How to avoid Race Conditions and Deadlocks in Django (Step-by-Step Guide).

How to avoid Race Conditions and Deadlocks in Django (Step-by-Step Guide).

Introduction Race conditions and deadlocks are silent killers in Django applications that can cause data corruption, inconsistent states, and mysterious bugs that are hard to reproduce. When multiple processes or threads access the same database records simultaneously, you're walking on thin ice. This guide shows you how to

How to Enable AWS CLI Tab Completion on zsh and bash

How to Enable AWS CLI Tab Completion on zsh and bash

Introduction Command-line tab completion speeds up AWS CLI usage and reduces typos. With a few lines in your shell profile, you can enable context-aware completions for services, subcommands, parameters, and even resource ARNs. This guide shows the minimal, reliable setup for both Bash and Zsh on macOS and Linux, including

How to Run GPU Workloads on ECS: Complete Implementation Guide

How to Run GPU Workloads on ECS: Complete Implementation Guide

Introduction Running GPU workloads on Amazon ECS requires careful planning and specific configurations that differ from standard CPU-based deployments. Organizations need GPU computing for machine learning training, inference workloads, video processing, and scientific computing, but ECS GPU support comes with important limitations and requirements ECS GPU support is only available

How to Schedule Simple Tasks Using APScheduler | A DevOps-Focused Guide

How to Schedule Simple Tasks Using APScheduler | A DevOps-Focused Guide

Table of Contents * Introduction * What is APScheduler? * Step-by-Step Implementation * Advanced Scheduling Patterns * Best Practices * Conclusion Introduction Imagine you're managing a production web application that needs to run several critical maintenance tasks automatically: database backups at 2 AM, health checks every 5 minutes, and log cleanup every Sunday at

How to Create Custom Metrics on Log Groups Using IaC

How to Create Custom Metrics on Log Groups Using IaC

Your application logs are full of useful data, but CloudWatch doesn't automatically turn them into metrics. You need metric filters to extract numbers from log events and create alarms that actually matter. This guide shows you how to set up custom metrics from log groups using Infrastructure as

How to manage multiple AWS accounts with AWS CLI Profiles

How to manage multiple AWS accounts with AWS CLI Profiles

1. What Are AWS CLI Profiles? AWS CLI profiles allow you to configure and manage multiple sets of AWS credentials and settings. Each profile corresponds to a specific AWS account or role, enabling you to seamlessly switch between them while using the AWS CLI. 2. Configuring Multiple Profiles To set

How to Schedule Cron Jobs in Django Using Celery Beat

How to Schedule Cron Jobs in Django Using Celery Beat

Introduction Scheduling background jobs is a common requirement in Django applications. Celery, combined with Celery Beat, is a popular way to run periodic tasks like sending notifications, cleaning up data, or syncing with external services. In a multi-vendor SaaS platform, each vendor may need their own schedule for the same

How to Monitor Available IPs in a Subnet Using AWS Lambda

How to Monitor Available IPs in a Subnet Using AWS Lambda

Running out of IP addresses in your subnet can bring your infrastructure to a halt. When your applications can't get new IP addresses, deployments fail, auto-scaling breaks, and new services won't start. This problem hits hardest during traffic spikes or when teams deploy multiple services simultaneously.

How to Enforce MFA on AWS for All IAM Users with Console Access

How to Enforce MFA on AWS for All IAM Users with Console Access

Introduction If you’re still not using AWS Identity Center for access control on your AWS account then most likely you are stuck with the old IAM users pattern. If you’re someone who hasn’t enabled MFA on the IAM users yet then you must do that immediately. Most

How to Host a Static Website Using Amazon S3

How to Host a Static Website Using Amazon S3

Amazon S3 (Simple Storage Service) lets you host static websites. Static websites are made up of HTML, CSS, JavaScript, and media files — no server-side code is needed. This guide will walk you through the steps to set up and publish a static website using an S3 bucket. Step 1: Create

How to Resolve Django Migration Sequence Conflicts in Team Development

How to Resolve Django Migration Sequence Conflicts in Team Development

Introduction Django migrations are essential for database schema management, but they can become problematic when multiple engineers work on the same application simultaneously. One common issue is migration sequence conflicts — when two engineers create migrations with the same sequence number, causing Django to throw exceptions during deployment. This guide shows

How to Copy GitHub Link to a Code Line Directly from VS Code

How to Copy GitHub Link to a Code Line Directly from VS Code

Sharing specific code lines or functions with team members is a common task. Instead of copying code snippets and explaining where they came from, you can share direct links to the exact lines in your GitHub repository. This makes it easier to share the code with right context. VS doesn&

How to Merge Kubeconfig Files - Simplified

How to Merge Kubeconfig Files - Simplified

Introduction Managing multiple Kubernetes clusters means dealing with multiple kubeconfig files. Each cluster generates its own configuration file containing authentication details, server endpoints, and context information. As your infrastructure grows, manually switching between different kubeconfig files becomes tedious and error-prone. Merging kubeconfig files into a single configuration allows you to