The following are a few words and some simple examples showing how to use Spring Data DynamoDB to store and retrieve data in a DynamoDB database. In the example, which consists of a few tests, I will use a local instance of DynamoDB running in a container. No prior knowledge of DynamoDB is assumed, though… Read More »
In this article I will install the free open-source edition of Traefik 2, version 2.3 being the latest at the time of writing, into a K3S (Kubernetes) cluster. Having installed Traefik 2 into my cluster, I will also take it for a quick test-drive. What is Traefik? Traefik will act as a gateway to the… Read More »
These are a few short notes on how to log requests received by a WireMock server as well as any mock response generated in connection to a request. I have found this to come in handy when having multiple mappings loaded into WireMock and an incorrect mapping being chosen in the test.In addition, I will… Read More »
Due to problems with PayPal, I have decided to move the sales of my book Core Spring 5 Certification in Detail to Kobo. Many thanks to LeanPub for the time that has been – they have been very friendly and helpful!
In this article I will install OpenEBS on my K3S Kubernetes cluster and present a simple example showing how to allocate storage for an application running in the cluster.I will take a slight detour to kubectl user contexts and, later, I will use a Persistent Volume and a Persistent Volume Claim to make storage available… Read More »
These are instructions on how to update a K3S cluster running in Multipass virtual machines. My installation of such a cluster is described in a previous article.The procedure will update K3S, both master and agent nodes, to the latest version of K3S. Master Node When updating the master node I take the opportunity to obtain… Read More »
Time passes more quickly that I thought and it has already been four years since I wrote the Introduction to Load Testing with Gatling article series. In preparation for another instance of the workshop, I had the opportunity to update the examples to the most recent version of Gatling and a newer Java version as… Read More »
This is another Kubernetes-related notebook entry in which I will document the procedure for setting up a Kubernetes cluster using K3S in virtual machines created with Canonical’s Multipass. In addition, I will describe how to configure kubectl, the Kubernetes command-line cluster management tool to manage the K3S cluster from outside of the virtual machines in… Read More »
Kubernetes and the echo-system around it has developed a lot during the last few years making Kubernetes much more accessible. In this article, which purpose mostly is to scribble down some notes for myself, I am going to describe how to run Kubernetes in Docker containers using Kind (Kubernetes in Docker) on Ubuntu and Mac… Read More »
For quite some time now I have thought it would be very useful to have some type of id associated with the processing of a request logged in connection to the log messages generated when the request is processed. This in order to be able to query Elasticsearch or similar for all the logs generated… Read More »