In an example from AWS EC2 manual shows that we can perform apt update and upgrade by putting:
repo_update: true
repo_upgrade: true
But I can't find exactly same commands in cloud-init official documentation, so I keep looking for the similiar commands and found this, they give two commands package_upgrade and apt_upgrade but didn't tell the difference.
It makes me curious that what's the difference between repo_upgrade and package_upgrade and apt_upgrade