In-depth technical articles, high-load system architecture analyses, and practical digital transformation strategies shared directly by Sudo’s engineers and solutions architects.
Three reports in a sales system: a CSV export, an HTML export, and a CSV export for orders of 1,000,000 VND or more. All three open a connection, filter, print a header, loop over rows, print a footer...
In the What is Kubernetes article, the control plane, nodes and pods were introduced at the concept level. This article moves on to the objects developers will deal with every day once a Website AI si...
A website on Kubernetes gets slower after a few days, occasionally returns 504 and the application log is empty. You open the provider's CPU chart and the nodes sit at only 10 to 20%. Low node CPU doe...
Once the Website AI image existed, the next question in the team was what is Kubernetes, and what can it do that a group of Cloud VPS instances running nginx and PHP-FPM cannot. This article answers "...
You apply a Deployment, kubectl get pod reports Pod Pending, and kubectl describe pod shows a FailedScheduling event with 0/3 nodes are available: 3 Insufficient cpu. If the node CPU chart looks idle,...
To run Website AI on Kubernetes, the first job is not building a cluster but packaging the application as an image. This guide covers Dockerizing Laravel for a product like the Website AI core: what D...
When you run MySQL on Kubernetes, the first question many people ask is: where does the PVC data live, and does it eat into the root disk of the node? This guide shows how to find a PVC on a Kubernete...
Frameworks like PyTorch let you train neural networks in a few lines, but when the loss stops falling or the gradients vanish, you can't tell where to start unless you understand what happens inside....
Website AI is Sudo's ready-made website product: a single Laravel core, where each customer gets a separate installation with its own database, theme and content. In the early days, Website AI sites r...
In earlier articles we wrote gradient descent by hand with NumPy: derivatives worked out on paper, updates applied manually. That approach teaches the fundamentals, but it breaks down once a model has...
When an order moves to the "paid" state, the system has to decrement stock, email the invoice, write an audit log entry and notify the accounting system. If OrderService.pay() calls all four directly,...
Most traffic on a content website comes from anonymous readers opening the home page, category pages and article pages. For every one of those requests, Laravel still boots the framework, runs dozens...
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