I was having an issue with a Kasten demo installation not using my reduced pvc sizes. I looked over the values file several times but the human eye can miss things.
To the rescue yamllint!
sudo apt install yamllint
Now I will purposely break one of the indentations in the file and then run yamllint.

I then edited the file and fixed the indentation.

While that was an easy example, in a big yaml file it can be hard to find issues like this so yamllint can be a huge helper!
