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Designing a Flash-Sale Seat Reservation System in AWS (Part 1): The Architecture
TL;DR: A national certification exam had 20,700 seats across five levels. When registration opened, far more people tried to book than there were seats. The previous system crashed under that load. It also sold the same seat twice. The new design follows three rules. First, one atomic Redis script…
Fine tune your own custom LLM with Canonical Charmed Kubeflow and Feast
So you want your own pet LLM huh? Knowing where to start can be quite tricky, so luckily for you I’ve put together this end-to-end guide. It’ll get you not just started; you’ll end with a fully working chatbot that you’ve fine tuned on the dataset `nampdn-ai/tiny-webtext`, which is a training…
Scaling Android™ development without scaling hardware
How shared Android capacity helps engineering teams move beyond fixed device labs In the first blog of this series, we discussed how programmable Android environments can replace manual device preparation with a repeatable lifecycle. A workflow requests an environment with a predefined…
Attach an Ubuntu Pro subscription to your AWS Image Builder image
We are pleased to announce that you can now attach an Ubuntu Pro subscription directly to any base image in AWS Image Builder, allowing you to create enterprise-grade custom images from the get go.
Beyond the 10-year mark: Extending Ubuntu Pro 16.04 LTS security coverage
A decade ago, Canonical launched Ubuntu 16.04 LTS (codenamed “Xenial Xerus”). As a Long-Term Support (LTS) release, it comes with 5 years of standard security coverage, which is doubled to a total of 10 years through Expanded Security Maintenance (ESM) for users with an Ubuntu Pro subscription.
Android™ development shouldn’t start with a physical device
How on-demand Android environments lay the foundation for Android engineering Software engineering has evolved dramatically over the last decade. Development environments that once depended on dedicated hardware have become resources that can be provisioned, configured, and removed on demand…
Bring Zenoh to ROS 2 with snaps
ROS 2 gives robotics developers the freedom to choose the middleware that fits their system. As a communication protocol for ROS, Zenoh has gained strong traction. It delivers proven performance and stability while giving developers explicit control over node discovery. Zenoh is a lightweight…
Evolution of the RISC-V ISA. What next after RVA23?
Introduction Releasing the RVA23 specification was a major milestone for the RISC-V community. While it provides an excellent baseline for deployment at scale, innovation continues to take place and we will see further extensions and profiles over the coming years. Upcoming innovations fall into a…
Cut bloat, not features
Accelerating software delivery with minimal OCI images For Independent Software Vendors (ISVs), delivering containerized applications to enterprise clients often means navigating a difficult trade-off between minimal image size and accurate security visibility. Traditional approaches can leave…
Grace on the currents: Stonking Stingray
When the codename for Ubuntu 26.10 was announced, I suspect there was a measurable surge in users searching for the definition of “stonking” across search engines and the various popular AI chatbots. As it so happens, the rather silly sounding word is actually a bit of British slang that denotes…
How we create a Canonical Academy exam
Open source provides the world with access to cutting-edge software, and the learning that comes with it. But how do you validate someone’s skills in an open ecosystem? Canonical Academy is a highly rigorous, job-focused qualification platform designed to empower individuals and enterprises with…
Surviving the uncharted: when dedicated OpenStack expertise is your best ally in disaster recovery
A customer’s OpenStack control plane went down overnight after their only backup proved stale. Canonical support rebuilt the database cluster live, service by service, without losing a single workload.
Agentic DevOps at AWS
AI agents have become capable of reasoning across large amounts of data, calling tools, and taking sequences of actions autonomously. These qualities make them well suited to some of the most persistent pain points in DevOps, including the on-call engineer woken at 3 AM to diagnose an incident, the…
Formal Methods as Agent Guardrails
Formal methods are a branch of mathematics and computer science focused on proving the correctness of systems, and they have long promised a more rigorous foundation for software. However, their complexity has kept them confined to a small community of specialists. That is now changing as agentic…
Amazon’s IDE for Spec-Driven Development with David Yanacek
AI-assisted coding tools have made it easier than ever to spin up prototypes, but turning those prototypes into reliable, production-grade systems remains a major challenge. Large language models are non-deterministic, prone to drift, and often lose track of intent over long development sessions…
