check for already existing bucket name

[kalevski]

[StefanTrsunov]

I would like to start with fixing this issue. How do we approach this?
Another question, I'm not sure how to test my code, should I restart the docker everytime? or? I'm new to this style/type of project

I created a WIP PR: PR
I tried updating BucketCreate() but didn't work.

I think the easy way of solving this is my setting the name to be Unique (but I don't know if it's the optimal way) that's why I would like to make this discussion, I made this and got this after running the second time: