Blog posts written by Alex Chalkias

Alex Chalkias
27 March 2021

Call for testing: Kubernetes 1.21 release candidate

Article Ubuntu

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

Alex Chalkias
27 March 2021

Alex Chalkias
9 March 2021

Multi-cloud Kubernetes management with Portainer

Article Ubuntu

If you feel intimidated by Kubernetes’ complexity but still need to modernize your business applications with containers, rest assured you’re not the only one. The container orchestration platform solves many problems but also creates new ones, so read on to find out about a new approach that can help you get just the...

Alex Chalkias
9 March 2021

Alex Chalkias
28 September 2020

Canonical at OSM Hackfest MR#9

Article OSM

The 12th OSM Hackfest, or OSM mid-release NINE (MR#9) Hackfest, is one for the books and Canonical happily shared the presenter floor with the rest of the Open Source MANO (OSM) community. The event spanned the whole week from September 7th to 11th, with Wednesday September 9th afternoon being used for the OSM Ecosystem day.

Alex Chalkias
28 September 2020

Alex Chalkias
2 September 2020

Canonical at KubeCon EU 2020: our first virtual KubeCon experience

Article Cloud and server

Another great KubeCon has recently come to an end – which is nothing less than what we expected. After all, that’s why Canonical and Ubuntu have been consistently present at KubeCon & CloudNativeCon EU, to connect with the community. This year, we showcased Canonical’s conformant, interoperable, multi-cloud Kubernetes...

Alex Chalkias
2 September 2020

Alex Chalkias
27 August 2020

Kubernetes vs Docker

Kubernetes Cloud and server

In an era where container technologies have taken the industry by storm, one of the most common online searches on the topic of containers is ‘Kubernetes vs Docker’. The relevance and accuracy of this comparison is questionable, as it is not really comparing apples to apples. In this blog post, we will attempt to clarify

Alex Chalkias
27 August 2020

Alex Chalkias
31 July 2020

Charmed OSM Release EIGHT available from Canonical

Article Canonical announcements

Canonical is proud to announce the general availability of OSM release EIGHT images in it’s Charmed OSM distribution. As of Release SEVEN, OSM is able to orchestrate containerised network functions (CNFs) leveraging Kubernetes as the underlying infrastructure for next-generation 5G services. Release EIGHT follows the...

Alex Chalkias
31 July 2020

Alex Chalkias
9 July 2020

MicroK8s HA tech preview is now available

Article Cloud and server

High availability (HA) for MicroK8s, the lightweight Kubernetes, is now available as a tech preview for Linux, Windows and macOS. The Kubernetes control plane can now be distributed across multiple nodes, bringing resiliency to the cluster while maintaining a low footprint using Dqlite, the distributed SQL engine as the...

Alex Chalkias
9 July 2020

Alex Chalkias
2 July 2020

Encryption at rest with Ceph

Article Ceph

Do you have a big data center? Do you have terabytes of confidential data stored in that data center? Are you worried that your data might be exposed to malicious attacks? One of the most prominent security features of storage solutions is encryption at rest. This blog will explain this in more detail and how

Alex Chalkias
2 July 2020

Alex Chalkias
25 June 2020

Ceph storage on VMware

Article Ceph

If you were thinking that nothing will change in your VMware data centre in the following years, think again. Data centre storage is experiencing a paradigm shift. Software-defined storage solutions, such as Ceph, bring flexibility and reduce operational costs. As a result, Ceph storage on VMware has the potential to...

Alex Chalkias
25 June 2020

Alex Chalkias
5 June 2020

OSM#9 Hackfest: the highlights

Article Cloud and server

Canonical concluded its participation in the 9th OSM Hackfest with a renewed sense of fellowship with the Open Source MANO (OSM) community and great pride in the collaborative work that enabled an end-to-end mobile network orchestration demo using OSM’s model-driven capabilities to onboard network services. Following...

Alex Chalkias
5 June 2020

Alex Chalkias
29 May 2020

Multus: how to escape the Kubernetes eth0 prison

Article Ubuntu

Kubernetes has been successful for a number of reasons, not the least of which is that it takes care of things that application developers may not want to bother with – such as, for example, networking. Multus is a feature that can be used on top of Kubernetes to enable complex networking use cases. Kubernetes

Alex Chalkias
29 May 2020

Alex Chalkias
24 April 2020

Ubuntu kernel 5.4: What’s new with Ubuntu 20.04 LTS

Article Cloud and server

Ubuntu 20.04 LTS has just arrived. The latest LTS comes with a new version of the Linux kernel – 5.4 – which brings a lot of exciting new features, faster boot times, enhanced performance and security. Additionally, the Canonical kernel team ran benchmark tests to validate the performance improvements of the new kernel....

Alex Chalkias
24 April 2020

Alex Chalkias
3 April 2020

LXD 4.0 LTS stable release is now available

Article Cloud and server

The stable release of LXD, the machine container hypervisor, is now available. LXD 4.0 is the third LTS release for LXD and will be supported for 5 years, until June 2025. This version comes with a significant amount of new features including adding virtual machines (VMs) support, the introduction of projects and...

Alex Chalkias
3 April 2020

Alex Chalkias
24 March 2020

Ceph Octopus is now available

Article Canonical announcements

Ceph upstream released the first stable version of ‘Octopus’ today, and you can test it easily on Ubuntu with automatic upgrades to the final GA release. This version adds significant multi-site replication capabilities, important for large-scale redundancy and disaster recovery. Ceph v15.2.0 Octopus packages are built...

Alex Chalkias
24 March 2020