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Upgrading CI Workflows: From Node 20 to Node 22 and Actions v5/v6
6+ hour, 44+ min ago (214+ words) TL;DR: I upgraded the CI workflows for the content-automation repository from Node 20 to Node 22 and Actions v5/v6, addressing compatibility issues and improving performance. Key changes included updating upload-artifact from v5 to v7 and implementing retry with backoff. The CI workflows for the…...
From Resetting Passwords to Containerizing Java: My Pivot to DevOps
10+ hour, 21+ min ago (477+ words) 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 stayed online. I learned how to troubleshoot under pressure, talk to frustrated users, and keep the…...
Cómo solucionar `docker run` con `Exited (1)` en Raspberry Pi
12+ hour, 10+ min ago (172+ words) El código de salida 1 indica que el proceso principal del contenedor terminó con un error genérico. En Raspberry Pi, los casos más comunes son: 🔍 Clave diagnóstica: El hecho de que funcione en una VM de Raspberry Pi (probablemente emulando x86_64 con…...
Keeping Container Images Everywhere They Need to Be: A Practical Guide to ECR Replication
14+ hour, 8+ min ago (1044+ words) If you've ever had a 2 AM page because a pod in ap-southeast-1 couldn't pull an image fast enough, or you've watched a deploy stall because your dev account is quietly trying to pull from a registry three regions away — you…...
Linux Integration Across Major OSes Advances Open-Source Containerization and Developer Tools
18+ hour, 38+ min ago (134+ words) HackerNoon Linux’s integration across major operating systems isn’t just theoretical—it’s transforming industries. Here are five real-world scenarios that illustrate its impact, grounded in the analytical model of OCI standardization, native containerization, and Linux’s role as a universal substrate. In…...
Docker Networking, Demystified: Bridge, Host, and Container DNS
21+ hour, 31+ min ago (1062+ words) I want to walk through how containers actually find each other and the outside world, with commands you can paste and run. No magic, just the model. Every container attaches to one or more networks. On Linux, the default network…...
Cómo solucionar `docker run` con error `Exited (1)` en Raspberry Pi
1+ day, 11+ hour ago (174+ words) El código de salida 1 indica que el proceso principal del contenedor terminó con un error genérico. En Raspberry Pi, los casos más comunes son: 🔍 Nota crítica: El comando original tiene un error tipográfico: --net = host (con espacios alrededor del =) es…...
Docker Volumes vs Bind Mounts: Where Your Data Actually Lives
1+ day, 12+ hour ago (1000+ words) 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 gone — no warning, no recovery. If you want anything to survive docker rm, it has…...
Connect Redis, Postgres, and MySQL to Serverless Apps Over HTTPS
1+ day, 14+ hour ago (351+ words) Serverless and edge runtimes are great until your app needs a normal TCP database connection. Cloudflare Workers, Vercel Edge, Deno Deploy, and many other HTTP-first runtimes do not let you open raw TCP sockets directly. That creates an awkward choice:…...
Running a 120-site uptime monitor for $0/month on Cloudflare's free tier
1+ day, 15+ hour ago (386+ words) The interesting part isn't the tool, it's that the whole thing — app, ~120 monitored sites with 24h history, SSR status pages, share cards, outage alerts — runs for $0/month plus domains. The one thing that wanted to cost money Everything fit the Workers…...
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