How to add Prometheus data source to Grafana?

[cyberfreakde]

When I try to add the Prometheus url http://localhost:9090/metrics to Grafana I get the error

Unknown error during query transaction. Please check JS console logs.

Am I missing something?

[girish]

@cyberfreakde I don't have much experience with either of these but you should add it by prometheus' domain name. Since each app is a container, the "localhost" of each app is different.

[jimcavoli]

Yeah, you likely don't want localhost you want the uuid of the installation as the hostname since that's what's exposed in the docker virtual network.