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Nikos Mavrogiannopoulos
30 March 2021

What lies on the second phase of Ubuntu LTS? Two years of Ubuntu 14.04 in ESM

Security Ubuntu tech blog

Two years ago, we launched the Extended Security Maintenance (ESM) phase of Ubuntu 14.04, providing access to CVE patches through an Ubuntu Advantage for Infrastructure free or paid subscription. This phase extended the lifecycle of Ubuntu 14.04 LTS, released in April 2014, to a total of ten years, ending in April 2024. During the ESM ...

Alex Chalkias
30 March 2021

Windows containers on Kubernetes with MicroK8s

Cloud and server Ubuntu tech blog

Kubernetes orchestrates clusters of machines to run container-based workloads. Building on the success of the container-based development model, it provides the tools to operate containers reliably at scale. The container-based development methodology is popular outside just the realm of open source and Linux though. Exactly the same bene ...

Sohini Bianka Roy
29 March 2021

Operators and charmed operators

Charms Ubuntu tech blog

Operators were designed to help manage application lifecycle complexity. If you’ve been working with Kubernetes, you will have run into operators. Operators are designed to automate typical maintenance tasks, from installation to back-ups and scaling. What might surprise you is that operators are capable of doing so much more. Enter the c ...

Anthony Dillon
29 March 2021

Design and Web team summary – 29 March 2021

Design Ubuntu tech blog

The web team at Canonical run two-week iterations building and maintaining all of Canonical websites and product web interfaces. Here are some of the highlights of our completed work from this iteration. Web squad The Web Squad develops and maintains most of Canonical’s sites like ubuntu.com, canonical.com and more.  In this iteration, th ...

Sohini Bianka Roy
28 March 2021

Beyond Helm and Kustomize: the Future of Kubernetes Apps

Juju Ubuntu tech blog

Deciding if you should install Helm vs Kustomize for your Kubernetes deployment? These are great options for day-1 operations but they leave a lot left to be desired on day-2. Charmed Operator Lifecycle Manager and Charmed Operators help you manage the entire lifecycle and allow charms to easily integrate with one another while taking car ...

Alex Chalkias
27 March 2021

Call for testing: Kubernetes 1.21 release candidate

Ubuntu Ubuntu tech blog

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 Ubuntu tech blog

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 Ubuntu tech blog

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 Ubuntu tech blog

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 Ubuntu tech blog

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 Ubuntu tech blog

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 ...

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