How to set up development environment

[vladislavkruglikov]

To build vllm-openai stage from docker file for the first time it takes me about 30 minutes form sources in docker. After successfull build any change in source code inside vllm folder results in the build that takes around 4 minutes thanks to caches. The second build starts from the copy command where vllm directory gets copied since the source code is changed

After copy of vllm sccache gets installed all over again and many other things. Since vllm folder does not have anything to compile why would we copy the contents of folder vllm in the such early stage thus making docker re build image if we have changed the source code

What I want to achive is fast build after I have changed the source code in order to debug my changes faster using gpu