Overview So I need to update my Jenkins to build for arm platform as I move to Hetzner from Digital Ocean (much cheaper) and I selected an arm server. Here is the guide to install docker buildx so you can build container images for arm platform Then install docker buildx Then restart docker service Đạt … Read more
Overview Checking log without color is hard. Enable color for your log messages would make things a bit easier. I’ll show you how to do that with logback in spring. Configuration First of all, you need to create a file name logback-spring.xml under your resource folder. Here is my file: Here is my log configuration … Read more
Overview This post covers the fundamental, yet important operations that you or your applications interact with kafka. The main purpose of kafka, to me, is to delivery messages. We are dealing with messages handling in this post. Setup As I’ve setup a kafka instance in the previous post, I’m going to use it in this … Read more
Overview In order to start working with kafka, we need a cluster. The easiest way is to use docker. You can also download the binary files and run if you prefer. This is just one in many options Docker-compose Here I have a simple setup with some extra services (kafka-connect) and redpanda (for a nice … Read more
Overview Before working with Kafka, it’s important to understand its architecture. Terminologies Here are the most important concepts in Kafka Broker/server These are machines, containers that accepts requests to the clusters. A broker also holds data. Topics These are the virtual container of your messages. The publisher (the one that send messages) and the consumer … Read more
Overview This tutorial only about openvpn client, not the server. I’ll show you how to connect to a VPN using openvpn3. What you need is a .opvn file and the username and password to login to the vpn server. Install OpenVPN3 on ubuntu There is an easy to follow guide here you follow to get … Read more