This is one of those areas where everyone lists it as required for the job but in practice you very very rarely use it beyond the basics. Pretty much everyone has an infra person and in most places it's all automated off of the git commits. You'll very rarely touch the cloud and when you do it will be for trivial stuff like updating secrets.
Add whatever cloud/container tech they're looking for into the skills part of your resume when applying. Take a day or two and do a crash course on Docker/Kubernetes. That will be enough to pass the interview. In fact, I think I've been asked 0 cloud/container questions during interviews. Tech companies don't really ask specific technical questions beyond Leetcode/System Design. Kind of odd but that's the way it is.
Even easier than taking a course is to ask GPT about the tech and then talk with GPT about the tech. Ask it questions to make sure you understand. Repeat what it tells you back in your own words. Ask GPT to give you a mock interview. You'll learn a little about the tech and a lot about how to sound like you know the tech.
Add whatever cloud/container tech they're looking for into the skills part of your resume when applying. Take a day or two and do a crash course on Docker/Kubernetes. That will be enough to pass the interview. In fact, I think I've been asked 0 cloud/container questions during interviews. Tech companies don't really ask specific technical questions beyond Leetcode/System Design. Kind of odd but that's the way it is.