In-depth technical articles, high-load system architecture analyses, and practical digital transformation strategies shared directly by Sudo’s engineers and solutions architects.
A store wants to know how many bottles, cans and cartons are left on a shelf, and where they sit. The image classifier from the previous article only answers "which class is this image?", but inventor...
The ConfigMap and Secret are fully loaded into the container, kubectl exec ... env prints every variable correctly, and yet Laravel running on the web still cannot read them. This is a very common err...
Installing cert-manager on Kubernetes usually takes only a few commands, but when it goes wrong the messages are hard to read. This guide is a troubleshooting handbook for cert-manager installation er...
On Cloud VPS, every new domain meant another certbot run on the balancer. In a cluster, certificates have to be issued inside Kubernetes itself, attached to each site's Ingress and renewed automatical...
The shopping cart of an online store needs three things that direct method calls cannot give it: an "Undo" button after a customer accidentally deletes an item, a "Redo" button when they change their...
This guide walks through a minimal Kubernetes manifest set for running a Laravel application with MySQL on a cluster: namespace, ConfigMap, Secret, a Deployment for the application and a StatefulSet f...
You have 244 training images, two classes (ants and bees), and you want an image classifier. Training a CNN from scratch gives 71.9% on the validation set (153 images: 70 ants, 83 bees, so always gues...
This guide walks through creating a first LKE cluster for a web application such as Website AI: the choices on the LKE cluster creation form, how to split node pools by role, how to size nodes from re...
In the previous articles, pods got IPs and a Service grouped many pods behind one stable address. But that address only exists inside the cluster. The browsers of people visiting the website are out o...
Getting a neural network to run once does not mean you know how to do deep learning training reliably. Change the learning rate from 0.001 to 0.1, with the same model and the same data, and accuracy c...
Containers are temporary: when a pod is recreated, every file written inside it is lost. For Website AI that is a big problem, because each site has customer-uploaded images and its own customized the...
On Cloud VPS, each Laravel site has a .env file next to its code, built by the pipeline with a series of sed commands. Once Website AI moves to a single image shared by every site, that file can no lo...
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