Comment 1 for bug 1745592

Grafana does not correctly display `ram-allocation-ratio` on the dashboard because it uses values from prometheus-openstack-export which are set statically
https://git.launchpad.net/~prometheus-charmers/prometheus-openstack-exporter-charm/+git/charm-prometheus-openstack-exporter/tree/config.yaml

At the moment the following actions have to be carried out when changes are done, or default doesn't match:
AP:
1. Audit the clouds for the 3x values form
$ juju config nova-cloud-controller cpu-allocation-ratio
$ juju config nova-cloud-controller ram-allocation-ratio
$ juju config nova-cloud-controller disk-allocation-ratio

2: Use the information obtained from the commands above to replace the defaults from prometheus-openstack-exporter with the correct values:
$ juju config prometheus-openstack-exporter cpu-allocation-ratio
$ juju config prometheus-openstack-exporter ram-allocation-ratio
$ juju config prometheus-openstack-exporter disk-allocation-ratio

For customer using Grafana as reference, the defaults can be misleading.