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Kubernetes

Kubernetes related.

Hardening security on Kubernetes with KubeArmor

KubeArmor provides runtime protection on Kubernetes using policies. It uses eBPF and Linux Security Modules (LSM). It can restrict any malicious or unwanted behavior by cluster uses. As you can see the Kubearmor is placed between the kernel and running pods. In this placement, it can filter out restricted actions.

Creating Kubernetes cluster with k3s on multipass

Setting up a Kubernetes lab is often a necessity in my daily work. Testing various software, understanding how to run it, configure it, learning new features, and so on. It's part of the job. Running directly on the cloud could raise costs and using local development tools is a choice

Debugging on Kubernetes

Even with the best designs, patterns, and processes implemented, there is a tendency for errors to show up and crash the party. If you are coming from another field or just starting up with Kubernetes - there would be needed effort and time to pass so that the shift in

Cdk8s instead of Helm for Kubernetes

Cdk8s is an open-source software development framework for defining Kubernetes applications and reusable abstractions using familiar programming languages and rich object-oriented APIs. cdk8s apps synthesize into standard Kubernetes manifests which can be applied to any Kubernetes cluster. Cdk8s definitions are written as software in one of the supported programming languages.

How to configure Traefik on k3s?

Traffic engineering with Traefik on k3s distribution of KubernetesTraefik is one of the most popular ingress controllers on Kubernetes. Traefik v2 brought some major changes in the usage of the controller itself. It brought the approach of heavy usage of Custom Resources on Kubernetes to provide reconfigurability and expanded fields

Kubernetes 1.25 release recap

The Kubernetes release 1.25 is set to the stable version on the 23rd of August. Detailed release notes are published on the official docs. Important links are located at the bottom. In this article overview of the major topics, deprecations, and removals will be listed, and compiled description from

Traffic engineering with Traefik on k3s distribution of Kubernetes

Creating Kubernetes cluster with k3s on multipassSetting up a Kubernetes lab is often a necessity in my daily work. Testing various software, understanding how to run it, configure it, learning new features, and so on. It’s part of the job. Running directly on the cloud could raise costs and

Networking on Kubernetes with Calico and eBPF

Kubernetes networking is a complex topic. There are multiple layers present — from the containers to the underlying infrastructure. Let’s dig in. Kubernetes defined the network model and the network drivers are implementations of that model. In that way, you can have multiple network drivers implementing the model which makes

OpenTelemetry, Spring Boot, Kafka and Jaeger in action

Finding the root cause of problems in the software is a pretty complex topic. With distributed systems, another layer of the ultimate complexity, the problem becomes harder to solve. To make a distributed system more observable, one needs to implement proper tracing, apart from logging and metrics. Distributed tracing allows

Creating Kubernetes operator using Kubebuilder

Kubernetes is the current de facto standard for the deployment and running of applications that are suitable for modern cloud platforms. A declarative way of defining infrastructure state using YAML allows a super easy definition of the scheme for the deployment of the application. Deploying stateless applications is not a