The DevOps section collects hands-on experience from the Sudo infrastructure team running hundreds of PHP/Laravel websites: the three-tier Cloud VPS model, the move to Kubernetes and CI/CD, real incidents and how they ...
As the number of sites on the cluster grows, the question "what just went wrong with this site" starts to eat time: you have to find the right namespace and the right pod, run kubectl logs, and if the...
Once the sites on Kubernetes are created with GitLab CI, sooner or later you need other tasks too: back up one site, back up the whole cluster, remove a site, clean up after a failed creation. Instead...
A fairly common situation: the code lives on Bitbucket, where developers work with branches and pull requests, while the pipelines that operate the Kubernetes cluster (creating sites with Helm, workin...
Deploying by using sed to edit a few manifest lines and then running kubectl apply works for one site. But a Laravel website on Kubernetes needs close to ten objects: Deployment, Service, Ingress, Cer...
Once an application runs on Kubernetes, the manual process of "build the image on a personal machine, push it to Docker Hub, edit the manifest, then kubectl apply" soon becomes a bottleneck. If the so...
The two blocks that get edited back and forth the most in the manifest of an application newly moved to Kubernetes are resources and affinity. The cause is usually the same: not fully understanding ho...
Once the cluster has ingress, automatic certificates and applications running smoothly, questions like "are the nodes getting full", "which pod uses the most RAM" or "was anything unusual last week" c...
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...
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...
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...
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...
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