DevOps – Page 17 – ITFROMZERO

Deploying Kubernetes on vSphere with VMware Tanzu: Turning Virtualization into Professional Container Infrastructure

By admin May 5, 2026

A detailed guide on deploying Kubernetes on vSphere using VMware Tanzu. Sharing practical experience on network configuration, storage, and effective cluster management for enterprises.

Centos

Installing Apache Tomcat on CentOS Stream 9: A Real-World Production Guide

By admin May 5, 2026

A detailed guide on installing Apache Tomcat 10 on CentOS Stream 9. Includes practical experience on JVM RAM optimization, user security, and production-ready Systemd configuration.

Ubuntu

Installing MicroK8s on Ubuntu: A Lightweight Kubernetes Solution for Dev and Lab Environments

By admin May 5, 2026

Installing Kubernetes on Ubuntu has never been easier thanks to MicroK8s. This guide covers everything from installation and add-on configuration to troubleshooting firewall issues.

Docker

Docker Containers Shutting Down Slowly and Zombie Process Errors: A Complete Fix with Tini

By admin May 5, 2026

Docker containers hanging during shutdown? Discover how to use Tini to resolve Zombie Processes and Signal Handling, making your apps more stable and professional.

Monitoring

Sentry Self-hosted Installation Guide: Comprehensive Web Error Monitoring

By admin May 4, 2026

A detailed guide on deploying Sentry Self-hosted using Docker. Real-world insights to optimize debugging workflows and reduce operational costs for engineering teams.

Docker

HTTPS for Local Docker: Setting Up a Pro “Green Padlock” with mkcert and Nginx

By admin May 4, 2026

How to configure HTTPS for Local Docker using mkcert and Nginx. Get a "green padlock" for virtual domains and test OAuth2 and Webhooks seamlessly.

Database

Deploying Patroni: The ‘Sleep Better’ Solution for PostgreSQL Administrators

By admin May 3, 2026

Database outages in the middle of the night are no longer a concern. A detailed guide on deploying Patroni to automate PostgreSQL Failover and ensure 24/7 availability.

Monitoring

Building a Centralized Logging System with Fluentd and OpenSearch: A Lightweight ELK Stack Alternative

By admin May 3, 2026

The days of SSH and 'tail -f' for logs are over. Build a lightweight centralized logging system with Fluentd and OpenSearch, using 1/10 the RAM of ELK Stack.

Security

Ditch VPNs, Use Cloudflare Access to Secure Internal Apps: Fast, Secure, and Effortless

By admin May 3, 2026

Forget VPNs! Learn how to use Cloudflare Access to protect internal dashboards and SSH with Google/GitHub SSO. 5-minute setup for enterprise-grade security.

Git

Git Patch & Git Apply: Instant Code Sharing Without Messing Up the Commit Log

By admin May 3, 2026

Share code quickly and keep a clean commit history without pushing or pulling. A detailed guide on using Git Patch and Git Apply for a professional workflow.