customers.GitLab.com should have Prometheus monitoring
This host keeps running out of disk space because it is not being monitored correctly: https://gitlab.com/gitlab-com/gl-infra/infrastructure/-/issues/6705
Incident: https://gitlab.com/gitlab-com/gl-infra/production/-/issues/2342
At a minimum, we should install `node-exporter` across the `customers.GitLab.com` fleet.
Once that is done, and assuming the correct `type` labels are applied, we will automatically start getting utilisation alerts, for high CPU, disk utilisation issues, etc.
issue