Category: DevOps

Vercel has announced the general availability of Vercel Sandbox, an execution layer designed specifically for AI agents. But beyond the AI agent hype, there’s an interesting question: can it be useful for running code safely in different languages like PHP, Node, or Go?

What is Vercel Sandbox?

Vercel Sandbox provides on-demand Linux microVMs. Each sandbox is isolated, with its own filesystem, network, and process space. You get sudo access, package managers, and the ability to run the same commands you’d run on a Linux machine.

The Problem We All Have (But Solve Poorly)

As a DevOps Manager, I spend more time than I should configuring ways for the team to show their development work. Client demos, webhooks for testing, temporary APIs for integrations… we always need to expose localhost to the world.

Traditional options are a pain:

• ngrok: Works, but ugly URLs, limits on free plan, and every restart generates a new URL
• localtunnel: Unstable, URLs that expire, and often blocked by corporate firewalls
• SSH tunneling: Requires your own servers, manual configuration, and networking knowledge
• Manual Cloudflare Tunnels: Powerful but… God, the manual configuration is hellish

And then I discovered Moley.

A Revelation in Algorithm Form

Thanks to an article from System Design Academy that came my way this week, I’ve been reflecting on something I find curious and simple at the same time: how to sort massive datasets in a distributed manner. And you know what? These patterns are so elegant that they can be applied to so many other problems we face day to day.

As a developer who has gone from JavaScript to PHP, then Python, and is now fully immersed in Golang, I’m struck by how certain patterns transcend languages and frameworks. Distributed sorting is one of those cases where architecture matters more than implementation.

In a new phase of this website, and as a PoC, it has been migrated to Netlify and the repo has been updated for Hugo 0.5.5, removing the theme as an external element.

This means that we may have some errors or temporary issues with visualization, certificates, or similar.

When installing/renewing let’s encrypt on a web server with nginx, we have to decide whether to do it with a temporary server, which means we must temporarily stop the web service, or indicate what the DocumentRoot of the web server is for the domain.

The latter implies that the website or service has a “public” DocumentRoot, and that’s not always easy when we’re using, for example, a Python, Java, or Go application and nginx as a proxy.

Daily life has kept me from doing many things, including keeping this blog updated, but there’s no time for everything, and in the end fatigue forces me to reorganize priorities.

In recent months, I’ve been working on implementing RedHat CloudForms, Ansible Tower, and more, so I’ve had to work much more with Ansible. It was already a habit, but lately it’s been much more intensive.

So I’ve earned a few RedHat “certifications”: