Configure Prometheus Managed-App
I've installed Prometheus in my cluster through Gitlab Managed Apps from the Operations > Kubernetes page in my project.
I would like to customize my Prometheus to send logs to an external observability Tool. This is possible through remote_write in the prometheus.yml file like this example for Omnibus Gitlab.
Reading this Gitlab documentation (I'm using Gitlab.com), I have seen that it's possible to customize Prometheus editing the files .gitlab/managed-apps/prometheus/values.yaml or .gitlab/managed-apps/config.yaml (I'm in doubt with this one), but even following this deprecated Prometheus Helm Chart config format my changes aren't applied in my ConfigMap or even in my Prometheus config page.
We can see below a print screen of two tries for each of these files: