I have Netdata running in a container, which has a useful all-in-one-pane view, and it does a good job of auto detecting other containers and the host OS. Its essentially zero config.

It also has alerting capability, which is not zeroconf (configuring it properly is a bit of a chore). 😅

They try to push a pro/paid version, but it’s subtle and completely optional (a bit like the way Portainer does it).