The Alpine Mirage: How Upgrading Python Broke My Build and Led to a Truer Security Posture
This is a submission for DEV's Summer Bug Smash: Smash Stories powered by Sentry . The Initial Goal: "Upgrade and Secure" Like many developers, I rece…
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Building an On-Premise Kubernetes Cluster — Part 6: Deploying, Updating, and Scaling Your Own Application
🇧🇷 Leia a versão em português aqui In Part 5 of this series, we validated the cluster end to end by deploying Nginx. Now let's go one step further: bu…
Branch-Based CI/CD: Quality Gate to Multi-Environment Deploy with GitHub Actions
A complete, reusable pattern for wiring a code-quality gate (SonarQube) to Docker build, image scanning, and SSH-based deployment across development, …
Ditch GHCR: A Production-Grade Self-Hosted Docker Registry on a Single DigitalOcean Droplet
If you have ever hit the wall on a hosted registry's free private tier a 500 MB cap here, a per-seat charge there and you already run your own servers…
Openship: Your Deployment Tool Shouldn't Compete With Your App for RAM
The self-hosted PaaS drawer is not empty. Coolify, Dokploy, CapRover, Dokku, Kamal. If you have wanted a Heroku you actually own, someone has already …
🐳 MyZubster Ecosystem: Docker Integration, Monero Mainnet, and NFT Expansion
🐳 MyZubster Ecosystem: Docker Integration, Monero Mainnet, and NFT Expansion A comprehensive update on infrastructure, security, and the path to produ…
Docker Storage Mounts and Best Practices
To avoid bloated Docker images and containers, it is a best practice to store persistent data outside the container's writable layer by using storage …
Deploying a Full Stack SaaS
The previous article in this series covered feature flags: how to decouple deploying code from releasing it, so a bad idea can be turned off without a…
Setting Up CI/CD for a Full Stack Monorepo
In Multi-Tenancy Architecture for SaaS we worked through how a single deployment serves many organizations without their data or traffic bleeding into…
Coolify: The Complete Manual Setup Guide (For When the Auto-Install Script Won't Cut It)
Coolify's one-line install script is great — until it isn't. Right now it officially supports Ubuntu 20.04, 22.04, and 24.04 LTS. If you're running an…
ML Zoomcamp WEEK 10: Kubernetes. Finally!!!
Like Docker, Kubernetes is one of those words I see being thrown around, and I've always been curious about it. Which is one of the reasons why I deci…
Late Night Shipping Safi Budget Engine Updates & Render Deployment published
Finished up a solid coding sprint tonight working on Safi-Budget a financial management application built around the 50/30/20 budget framework. I'm cu…
Running PostgreSQL with Docker
Installing Postgres directly on your machine works, but it gets messy fast once you're juggling multiple projects that each want different versions, e…
Deploy a New Version of the Application (v2)
you deployed version 1 of the application. Today, Jules (the developer) sends you a message: "I fixed several bugs and added a new feature. Please dep…
🐳 Docker Basics Every Beginner Should Know
When I started learning Docker, I quickly realized that understanding a few core concepts and commands makes working with containers much easier. Inst…
You Probably Do Not Need Kubernetes Yet
I’ve seen enough docker setups to know that a lot of people reach for Kubernetes before they’re ready for it. It doesn’t mean Kubernetes is bad. It's …
Building a Fully Automated SaaS: Payment to Deployment in 90 Seconds
Zero-Touch Customer Onboarding My AI agent hosting service has exactly zero manual steps between payment and deployment. Here is how: The Pipeline Cus…
More Power in Your Docker Compose
It is safe to assume that Docker shows up at some point in every developer's life. We often reach for compose.yaml files to run our applications and t…
# The Journey of a Request: How NGINX Routes Traffic Between Docker Containers in a Modern Web Application
The Journey of a Request: From Browser to Database and Back Have you ever wondered what actually happens after you type a website URL into your browse…
Automating Production: A CI/CD Pipeline for Google Cloud Run with GitHub Actions
Introduction In the last guide , we deployed our FastAPI app to Google Cloud Run manually. It worked, but "manual" is a dirty word in modern engineeri…
Docker, From Zero: What It Actually Solves, and How to Actually Use It
Nephew has heard "just Dockerize it" a hundred times at work and nodded along without really knowing what that meant. Uncle sits him down for a proper…
From Resetting Passwords to Containerizing Java: My Pivot to DevOps
For 4 years, I lived in the world of IT Operations. My days were spent handling incident response, managing data lifecycles, and making sure systems s…
Docker Volumes vs Bind Mounts: Where Your Data Actually Lives
A container's writable layer feels like a filesystem, and that's exactly the trap. Write a database into it, remove the container, and the data is gon…
Hybrid Container Governance: Scaling Patterns That Work
Hook The third WSL instance didn't need a reinstall. That's when I knew the pattern worked. WSL 1 had the full stack — six ark-* MCP servers, oh-my-mc…
From Localhost to AWS ECR: Architecting a 3-Tier Node.js App with Docker.
As a Cloud and DevOps Engineer, one of the most satisfying milestones is taking an application that "works on my machine" and transforming it into a r…
CI/CD Pipelines That Actually Work: My Quest Like a DevOps Jedi
The Quest Begins (The "Why") Look, I still remember the first time I tried to automate a build for a tiny side‑project. I slapped together a shell scr…
Nginx Proxy Manager on Your Home Lab: Performance Tuning Beyond the Defaults
TL;DR: Nginx Proxy Manager ships with one goal: get a reverse proxy with Let's Encrypt certs running in under ten minutes. It delivers on that. 📖 Read…
Deploying SFTPGo as an Azure Storage SFTP Alternative on Linux
Azure Storage SFTP is Microsoft's managed file transfer service on top of Azure Blob Storage, convenient, but billed continuously per endpoint (roughl…
Docker vs Kubernetes: Do You Actually Need an Orchestrator Yet?
"Docker vs Kubernetes" is one of those framings that quietly sends people down the wrong road. It sounds like a choice between two competing tools, so…
From Docker Compose to Kubernetes: What Actually Changes
If you're comfortable with docker compose up , you already understand more of Kubernetes than you think. Compose taught you to describe an application…