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The latest News and Information on Containers, Kubernetes, Docker and related technologies.

Tutorial: Auto-instrumentation of a Java app by OpenTelemetry for K8s Environment

This tutorial demonstrates how to auto-instrument a Java app by OpenTelemetry for Kuberenetes easily with the help of a sample Java app. It also shows how to connect it to the hosted collector, and trace the transactions in Sumo Logic. Learn the prerequisites and the detailed step-by-step auto-instrumentation process in this tutorial. Reference Links: Links to refer to or download useful material to try the steps independently.

Introducing our exciting new ambassador program: Calico Big Cats

The Project Calico community is one of the most collaborative and supportive communities in the open-source space. Our community has shown great engagement through the years, which has helped us maintain and grow the project. Thanks to our 200+ contributors from all over the world, Calico Open Source (the solution born out of the project) is powering 1.5M+ nodes daily across 166 countries.

The Impact of CVE-2022-0185 Linux Kernel Vulnerability on Popular Kubernetes Engines

Last week, a critical vulnerability identified as CVE-2022-0185 was disclosed, affecting Linux kernel versions 5.1 to 5.16.1. The security vulnerability is an integer underflow in the Filesystem Context module that allows a local attacker to run arbitrary code in the context of the kernel, thus leading to privilege escalation, container environment escape, or denial of service.

The Top 5 Kubernetes Configuration Mistakes-And How to Avoid Them

Let’s face it – Kubernetes can (and is) oftentimes very complex. This means that you’re bound to make a cluster configuration mistake along the way – apart from it impacting your cluster’s performance and security, it can also heavily affect your ability to enforce visibility and troubleshooting. There is, however, a light at the end of the tunnel.

What's new in Sysdig - January 2022

As you already know, the “What’s new in Sysdig” blog team is involving more and more people, and this month is up to me, Giulio Puri. I’m based in Milan, Italy, and I’ve been part of the Sysdig EMEA team since May, 2021 as a Sales Engineer. I’m passionate about technology, innovation and cybersecurity, and in my free time, I love to cook, experiment with recipes and – not always successfully – surprise my friends with new dishes.

From Kálmán to Kubernetes: A History of Observability in IT

You know that observability plays a crucial role in helping to manage today’s distributed, cloud-native, microservices-based applications. But you may be surprised to learn that – despite its close association with modern applications – observability as a concept was born more than a half-century ago. Its origins stretch all the way back to the late 1950s, long before anyone was talking about microservices and the cloud.

Single-command Docker environments on any machine with Multipass

Multipass exists to bring Ubuntu-based development to the operating system of your choice. Whether you prefer the GUI of macOS (even on M1), Windows or any other Linux, the unmatched experience of developing software on Ubuntu is there at your fingertips, just one “multipass launch” away. Today, the Multipass team is delighted to enhance this experience for developers working with containerised applications!

Understanding bare metal Kubernetes

Bare metal Kubernetes is a powerful set of technologies that builds on the best ideas behind the public and private cloud, yet abstracts away some toilsome aspects related to virtualisation management and networking. For operators and users, it provides significant benefits, making it easier and faster to ship and maintain complex, distributed applications.