The CKA exam is not that hard. You can pass the CKA exam in less than 3 months without any stress if you follow the steps in this post to prepare. You have my word. I’ve tried myself and just successfully get my CKA certificate! How much time do I need to prepare for the CKA exam? It depends, an experienced DevOps…

Aeraki [Air-rah-ki] Mesh is an open-source service mesh I started about a year ago, and have been working on it till recently. Aeraki is the Greek word for ‘breeze’. While Istio connects microservices in a service mesh, Aeraki Mesh provides a non-intrusive, highly extendable way to allow Istio to support…

Microservice is a powerful software architecture to escalate innovations, and many businesses have been adopting microservice for a long time. However, the transition from monolith to microservice comes with costs. …

When hearing about the term “Network Service Mesh” for the first time, you probably are as curious as I was: What exactly is it behind this fancy name? Does it have anything to do with Service Mesh/Istio? It turns out that Network Service Mesh is a sandbox project in the…

Service Mesh is yet another emerging fancy tech word in the field of microservices recently. If you have a telecommunication or networking background, you may have already noticed that Service Mesh and SDN (Software Defined Network) look similar. …

In the previous post, we discussed how to use Opentracing to help Istio Service Mesh to propagate tracing context across process boundaries, and how to enrich Istio/Envoy generated traces with method-level spans to get more fine-grained insights to the services. For now, all that we have been talking is just…

While evolving towards a microservices architecture, the biggest change is that the monolith application has been divided into multiple independent processes(or services), as a result, a method call between software modules now becomes a remote procedure call go through multiple services. A client request usually goes through a couple of…

By default, in a Kubernetes cluster with the Istio service mesh enabled, services can only be accessed inside the cluster. However, some of the services may need to be exposed to external networks as well. Kubernetes and Istio provide a variety of means to get external traffic into your cluster…