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Kubernetes: ConfigMaps with .NET
Kubernetes ConfigMaps with .NET Core This tutorial will cover how to mount a Kubernetes ConfigMap into a pod and how to read that configuration in .NET. I will also demonstrate the different ways a .NET application can read configuration from an appsettings.json file. One demonstration will reload configuration on change and how to listen for those changes. That does not...
Pointing a Domain Name to Azure Kubernetes (AKS) with a Static IP There are several ways to do this. I will start with the most basic way to demonstrate how this could be done and then gradually demonstrate more advanced ways. I will point a domain name to a Kubernetes service that will host multiple WordPress websites. This is a...
Microservice Toolbox (MBOX) I designed this for testing and building microservices. This Alpine Docker image is packed full of tools for interacting with containers, service meshes, Kafka, and other application development needs. Being that I'm a .NET developer this is geared towards tools that align with that however, pull requests are welcomed! WARNING: This is a work in progress. I'll be...
Must-Have Kubernetes Tools These are some must-have tools that can make working with Kubernetes significantly easier! These are my favorite tools that I use regularly that improve my workflow, security and troubleshooting abilities. kind This tool is phenomenal at creating local Kubernetes environments that run in Docker images. This is significantly easier to use than Docker's Kubernetes out of the box. It...
Simulating Lag with Docker Containers I was building a Grafana dashboard with Docker Compose that would monitor a local service. I wasn't able to figure out if my calculations for the graph were correct because the latency was so low being that it was running in Docker Compose locally. I needed a way to proxy traffic to the service that...
Kafka Connect: JMX JConsole (Docker) Yes, you absolutely can connect JConsole to Kafka Connect and extract JMX metrics. If you are experiencing problems getting it to work this blog post will get you through it. There are 2 "gotcha's" with getting this to work with Docker/Docker Compose. The KAFKA_JMX_HOSTNAME variable must be set and the correct Java JDK must be...
Debugging Kafka Connect Connectors/SMTs in Java Are you developing a custom Kafka Connect Connector or Single Message Transform (SMT) and need to debug this? This blog post will give you ideas on how to output information to standard output and how to attach a remote debugger to a custom SMT running in a Docker container. This article can save you...
Kubernetes WordPress with Remote MySQL Access Deploying WordPress to Azure Kubernetes Service (AKS) was a great exercise for me to learn and improve my Helm and Kubernetes knowledge. Bitnami has a Helm chart for WordPress on AKS. The most ideal way of doing this is to modify the Helm Charts to include an additional load balancer, but, the purpose of...

.NET Kafka Producers

.NET Kafka Producers This multipage post will specifically target the concept of getting data out of a specific system or database and on to the Kafka Event Bus. There are many ways of doing this and some are easier to implement than others. It's important to remember why Kafka is relevant in today's world; Kafka is a real-time event streaming...
Local Development with Azure API Management Gateway This was rather tricky to figure out so I thought I would share my experience with setting up Visual Studio with a local development subscription of Azure API Management (APIM) Gateway. It turns out that running a local copy of the Azure API Management Gateway is possible through either Docker or Kubernetes. Since...
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