I am looking for resources to teach me everything about how to contribute to ubuntu development

Question

I am looking for resources to teach me how to start contributing to ubuntu development. The resources should include:

1. Where to find bugs on ubuntu(I know is very basic task)
2. How to deploy a package that fix a bug
3. Where to upload a package that fix a bug
4. How to become an official member of unbutu development.

Thank you!