What is performance testing? What do we measure with performance testing? How should we define performance tests? How and where should we run performance tests? Is it enough to run performance tests? Should we do performance testing?
Examples are provided through Ddosify.
Continue readingIt’s time to build an internal developer platform (IDO) with Crossplane, Argo CD, SchemaHero, External Secrets Operator (ESO), GitHub Actions, Port, and a few others.
Continue readingWould you like to create a “proper” CLI writing a Bash script instead of having to do it in Go, Python, or any other language? Charm Gum is a CLI framework that allows you to do just that. It enables you to make “glamorous Shell scripts”.
Continue readingWhat are Kubernetes Network Policies and how to use them? In this video, I’ll show you how to use Kubernetes Network Policies to restrict access between Pods. I’ll also show you the pros and cons of k8s Network Policies.
Continue readingIn this video, we’ll explore what mutual TLS (mTLS) is, why we need it, and how we can get it with a service mesh (e.g., LinkerD, Istio, etc.).
Continue readingWe finally got Kubernetes Validating Admission Policy. In this video, I’ll show you how to use it and what are the pros and cons of using it, and, most importantly, whether it threatens to extinguish existing policy engines like Kyverno, Datree, OPA Gatekeeper, and others.
Continue readingWhat are ephemeral (temporary) environments (in or out of Kubernetes)? Why are they important? How can you use them? What are the benefits? What are the drawbacks? What are the alternatives? What are the tools? In this video, we go through local development environments, remote development environments, and preview or pull request (PR) environments.
Continue readingObservability in Kubernetes is complicated. We might need to combine many tools to get the information we need. In this video, we will take a look at groundcover, a new tool that combines observability tools into a single solution backed by eBPF and with a unique Web UI.
Continue readingCilium is a networking and security solution for Kubernetes. It is based on eBPF and it is a replacement for service meshes based on sidecars. In this video, I will show you how to use Cilium to observe traffic, enforce network ingress policies, and enforce network egress policies.
Continue readingeBPF might be the next big thing in Kubernetes. In this video, we’ll take a look at what eBPF is, how it works, and how it can be used to replace sidecar containers.
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