- Logs are scrap by promtail on the docker socket, a service need do
   decare rights label to be scraped.

 - Logs are Centralized with loki. The save is persisante in the docker
   volume.

 - Log can be visualized with grafana.

 - use specific version for prometheus and grafana image

 - modify name of the core docker for better distinction of name with
core.innovlab

 - Remove static sub-net for `metrics_network`, remove any 10.54.1.x
réference in any configuration, use name or default addr listening
insteed.

 - New container in core docker compose for monitoring front-end : Grafana container

 - Request to metrics scraper (prometheus) are made via the mertrics network. Graphana
ip is 10.54.1.4 on this network.

 - Grafana bind it's listening on every interface on port 3300 so web interface is accesible
on localhost:3300 or core:3300 within the Innovlab LAN

 - For now auth is performa via admin:admin. It have to be better configured.

 - New volumes in the docker-compose configuration dedicated for core container. Log are saved
on the host at ./log.

 - Log are written by redirection of entry comman to /var/log/open5gs/core.log. This is made in
the last call of the entrypoint script.

 - smfd, amfd, updd and pcfd expose a HTTP servers on the `metrics_network` for metrics scraping

 - New prometheus service in core Docker-compose. It is configured in core/prometheus/core_scrap.yml. Add a
dedicated network `metrics_networks` (10.54.1.0/24)

 - Add a processus exporter in the 5gc Docker image to export metrics of runing services.