Create-react-app is great. So great that it has become a de-facto standard for creating new React applications. Docker is great as well. However it seems there’s no canonical way of creating a Docker image to run a create-react-app. Especially when you need to configure your React app on runtime. Let’s see how to do that.
Managing jobs in Apache Spark is a challenge. And it becomes even bigger challenge when your executors get stopped without any meaningful error message.
When using localization in a web application it might be useful to store user’s language in database so that every time they log in to the application they get the interface in the language they are used to. Let’s see how to do that in Symfony.
Recently I’ve set up an ELK stack and started feeding it data from application logs. Unfortunately one (and the most important) field was assigned a wrong mapping in Logstash and instead of double it was sometimes interpreted as a string field. I didn’t have much success googling a quick and easy solution, so here is one.