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Containers

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

Adding Kubernetes Metadata to Your AppSignal Errors

When we were moving an app to Kubernetes, we encountered a peculiar situation where other services running on Kubernetes started throwing a ThreadError from time to time, saying that a resource is unavailable. We started investigating, and it turned out that you want to know where your AppSignal error has occurred. A short reminder - Kubernetes works on two levels: So, you want to know which pod and which node ran a particular AppSignal transaction.

Performance Tool k6 Acquired by Grafana Labs

There was a big announcement this year at GrafanaCon 2021 that performance testing tool k6 is being aquired by Grafana Labs. It was really exciting news for folks who cheer for open source because these are two giant projects. At time of this writing, k6 has over 12K stars and Grafana with a respectable 42K stars on Github as well. In full transparency, I have used both of those repos many times over the years and am a fellow stargazer.

Rancher Desktop v0.3.0 Release

We are happy to share the v0.3.0 release of Rancher Desktop. This release brings more stability, some new features, and a fresh look to the UI. This screenshot shows the preferences screen while in dark mode on Mac. In the lower left corner the status when performing an action is now displayed. This status will tell you when Rancher Desktop needs to download something, such as a version of Kubernetes you have now used before, or when another step is happening.

Capacity Operations for Kubernetes

Kubernetes adds undeniable benefits when it comes to flexibility and agility, but providing suboptimal resource specifications at the container or node level creates tremendous inefficiencies at scale, leaving resources stranded and utilization very low. Learn how the practice of Capacity Operations can augment DevOps and FinOps initiatives and enable greater agility for your operations organization.

Top vulnerability assessment and management best practices

By implementing these vulnerability assessment and vulnerability management best practices you will reduce the attack surface of your infrastructure. We’re human, and many things we build aren’t perfect. That’s why we take our cars for a periodic inspection, or why we have organizations certifying that products are safe to use. Software is no different.

Vulnerability Management with Sysdig

Software is always changing and improving, and within this process, developers can unknowingly introduce vulnerabilities. Discover how Sysdig Secure provides a single vulnerability management solution for both containers and hosts. It allows you to validate compliance across your whole infrastructure. And it's so easy to deploy, that you will be scanning images and hosts in seconds.

How to Create Docker Images for ASP.NET Core

Microsoft has begun working with the Docker team and community so Docker can be used for the following: If you would like to run an ASP.NET Core web app in a Docker container and learn how to create images, we will explain all the steps on how to do the following: A Docker container image is a standalone, lightweight package that can be executed and contains all the requirements you need to run an application, such as: code, runtime, libraries, and settings.