DevOps – Page 3 – ITFROMZERO

Monitoring tutorial - IT technology blog

Healthchecks.io: The Pro Secret to Monitoring Silent Cron Job Failures

By admin April 3, 2026

A backup script suddenly stopping is a disaster for any SysAdmin. Discover how to use Healthchecks.io to monitor Cron Jobs effectively using the 'Dead Man's Snitch' mechanism.

Docker

Docker Hogging All Your Disk Space? Pro Tips to Clean Up Images, Containers, and Volumes to Save Your Server

By admin April 2, 2026

Docker hogging disk space is a DevOps nightmare. This article shares how to use prune commands effectively and configure log rotation to rescue your server from storage issues.

Fedora

Fedora Server: Professional Python Deployment with Gunicorn and Nginx

By admin April 1, 2026

Don't let 502 Bad Gateway errors stop you. A guide to deploying Python on Fedora with Gunicorn, Nginx, and precise SELinux configuration based on real-world experience.

Git

Git Sparse Checkout: The Ultimate Trick for Handling Gigabyte-Scale Monorepos

By admin April 1, 2026

Stop waiting for GB-sized Monorepo clones. Learn to use Git Sparse Checkout to download only the folders you need, saving space and speeding up your workflow.

Python

Packaging and Publishing Python Libraries to PyPI: Goodbye setup.py, Hello Poetry

By admin March 31, 2026

Forget the headaches of setup.py and requirements.txt. This guide helps you master Poetry to package and publish Python libraries to PyPI professionally, quickly, and error-free.

Development

Stop Silly Code Errors with Pre-commit Hooks, ESLint, and Prettier

By admin March 31, 2026

Don't let typos crash your system. A guide to setting up Husky, ESLint, and Prettier to automate code quality checks before every commit.

Database

Database Management on AWS RDS: Hard-earned Lessons for Optimizing Performance and Cost

By admin March 31, 2026

Managing AWS RDS effectively is more than just clicking buttons. Explore real-world experiences in cost optimization with gp3, Multi-AZ configuration, and backup strategies for large systems.

Docker

Don’t Let Your Containers Become ‘Zombies’: Mastering Docker Healthcheck and Restart Policies

By admin March 30, 2026

Container status is 'Up' but the app is still down? Learn how to use Docker Healthcheck and Restart Policies to build self-healing systems and sleep better at night.

Linux

Mastering awk and sed: Log and Config File Processing Secrets for Sysadmins

By admin March 30, 2026

Stop editing GB-sized log files by hand. Learn how to use awk and sed to automate your Linux workflow with real-world expert examples.

MySQL

MySQL Group Replication: The High Availability Lifesaver for Production Databases

By admin March 30, 2026

Eliminate downtime worries with this MySQL Group Replication configuration guide. A high-availability database solution featuring auto-failover and absolute data consistency.