Tips for a Successful Container Platform Migration — Before deep diving into the matter, we need to acknowledge some facts. First and foremost Docker doesn’t mean containers. The concept of containerization has been around for quite some time. …

Part I — Kubernetes is a fully resource-centered system, meaning that Kubernetes maintains the desired state of resources based on a thing called a reconciliation loop, using CRUD operations on these resources. A Kubernetes cluster consists of a set of independent components that run as separate processes on the nodes of a cluster…

Pinpoint cluster misconfigurations in one minute — If you’re not familiar with Kubernetes CPU and memory resources, please check the following article Kubernetes capacity management — resources and metrics. Getting straight to the point, here are three general rules concerning Kubernetes resource configuration: Requests affect how the Pods are scheduled on worker nodes because requests are guaranteed…

In this day and age if you’re using Kubernetes it’s rather impossible that you have not interacted in one way or another with the concept of a service mesh. Kubernetes already has a very rudimentary “service mesh” out of the box provided by the Service resource which has a basic…

Resources and metrics — When talking about Kubernetes capacity management, one of the main focuses is on resource utilization. There are two types of resources: CPU (measured in CPU units,m which stands for a thousandth of a core) and Memory (measured in bytes), the mechanisms through which Kubernetes controls resources such as CPU and…

A sound understanding of system design is really important if you intend to work in the software industry. The aim of the article is to provide an entry point and simplified view of the different aspects of the system design process. Scaling When sizing an environment (virtual machines/Kubernetes nodes) you…

If you’re using the managed Kubernetes offering from Microsoft also known as AKS you’re probably interested in the following. AKS control plane Right off the bat if you do kubectl get nodes you're not going to see any control-plane,master nodes, because the Azure platform manages the AKS control plane, and…

From a high-level point of view, Kubernetes runs your workloads by placing containers into Pods that run on Nodes. The nodes may be a VM or physical machine, depending on the cluster. A Kubernetes cluster has two main components the control plane and the data plane. Control-plane It includes components…

… inspired by Prometheus metrics First and foremost I highly recommend reading this article which provides an introduction to monitoring and observability and why we need them. Monitoring includes many types of concepts logging, tracing, and event introspection. …