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Blog


Alex Chalkias
27 March 2021

Call for testing: Kubernetes 1.21 release candidate

Ubuntu Article

Today, Kubernetes upstream made the 1.21 release candidate available for download and experimentation ahead of general availability, which will come later in April. Woohoo! We would love to get your feedback ahead of the general release and hear about any bugs or issues you find. Or, if you just want to give the bleeding edge ...


Canonical
26 March 2021

Livepatch 2021-03-24 incident investigation report

Canonical announcements Article

Description A defective livepatch for kernel 4.4 in Ubuntu 16.04 LTS (Xenial) was not caught in internal testing processes because the defect was a race condition, triggered by workload-specific behaviour, under load. The livepatch would cause the madvise system call to block indefinitely, and thus cause lockup to the processes using the ...


Igor Ljubuncic
26 March 2021

What’s in a snap?

Desktop Article

Snaps are several things, all at once. They are confined, standalone Linux applications that bundle all their necessary dependencies, which means they do not need to rely on the underlying system, and can run independently of it. Snaps are also packaged as compressed Squashfs filesystems, using the .snap extension. For most users, they ar ...


Jeremie Deray
25 March 2021

Getting started with micro-ROS on the Raspberry Pi Pico

Robotics Article

In this post we will see how the Raspberry Pi Pico can natively speak to a ROS 2 graph using micro-ROS. We will set up a project in VSCode, compile and upload it to the microcontroller. We thus assume that you are somewhat familiar with ROS 2 development and VSCode. What is this all about? ...


Canonical
25 March 2021

Canonical, Collabora, Nextcloud deliver work-from-home solution to Raspberry Pi and enterprise ARM users

Canonical announcements Article

March 25th, 2021 – Canonical, Collabora and Nextcloud announce the immediate availability of a content collaboration platform for 64bit ARM for both consumers and enterprises. Building on the prior Nextcloud Ubuntu Appliance it adds with Collabora Online, the first viable self-hosted web office solution on the popular Raspberry Pi 4 platf ...


toto
25 March 2021

Meet my co-worker, webbot

Ubuntu Article

Like every team, the web team has a set of features that are super useful to automate. We use Hubot, a technology owned by GitHub to write very simple bot scripts that we can interact with. The way we use the bot is mostly via Mattermost. We called it: webbot. In this article I would ...


aymen frikha
24 March 2021

AI on premise: benefits and a predictive-modeling use case

AI Article

Running an Artificial Intelligence (AI) infrastructure on premise has major challenges like high capex and requires internal expertise. It can provide a lot of benefits for organisations that want to establish an AI strategy. The solution outlined in this post illustrates the power and the utility of Juju, a charmed Operator Lifecycle Man ...


Holly Hall
23 March 2021

What is cloud native?

Cloud and server Article

The term cloud native is widely used when thinking about computing and software development, encompassing a wide range of concepts that are regularly used in technology. Let’s break it down and take a closer look – what does cloud native really mean? What you need to know As a concept, cloud native is a set ...


Igor Ljubuncic
23 March 2021

How does Ubuntu 16.04 entering Extended Security Maintenance (ESM) affect snap publishers?

Cloud and server Article

At the end of April, Ubuntu 16.04 LTS will reach the end of its five years of mainstream support and enter the Extended Security Maintenance (ESM) phase. If you’re a snap developer, and you have built or based your snaps on Ubuntu 16.04 (Xenial) packages and libraries, you may want to know how this milestone ...


Wajeeha Hamid
20 March 2021

NFV orchestration: Network functions auditability with the open-source LMA stack

OSM Article

The transition to virtualized infrastructure and software network functions requires a re-evaluation in the telecom production environments. Network function is not alone. It has always been an important piece in the puzzle but requires a set of non-functional bits to complete the big picture and which brings the lifecycle management of n ...


Rhys Davies
19 March 2021

Flutter and Ubuntu so far

Desktop Article

At Flutter Engage, Ken VanDine, engineering manager for the Ubuntu desktop,  made an appearance in the keynote speech to talk about Flutter on Ubuntu. Canonical has been working to support Flutter for some time now, bringing the SDK to Linux, committing to build a new Ubuntu installer, and now, making Flutter the default choice for ...