I work with Spring Framework a lot. I can’t even remember a single project I had at work where I didn’t use it. There is one part of Spring that I use especially often – it’s DI (Dependency Injection). And as often as I use it, I face a situation where it turns out to be not smart enough for me. This article is a result of me trying to customize dependency injection in Spring to make it smarter as well as trying to get a deeper understanding of how does it work. I hope you’ll find it useful as well!
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In my team we’re using Docker a lot, especially in pair with testcontainers. When we’re running functional tests locally, there might be spinned up localstack, WireMock, Postgres and a container with the service itself. Running them all at the same time as well as the tests might heat up your laptop a lot, as well as make it next to unusable for quite some time. Luckily, thanks to having Linux on my laptop, this issue can be solved using CGroups.
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