Setup monitoring of ECS nodes

[hellais]

Currently we don't have observability into the container host of the ECS cluster. Moreover we are only able to scrape aggregate metrics from the services that are behind the balancer, which means we end up with the metrics "flapping".

Ideally we would have a way of scraping metrics for the container host, but also the per-servicer docker containers.

[hellais]

Leaving here some links for things to look at:

• https://github.com/santosh-at-github/ecs-monitoring-with-prometheus-grafana
• https://github.com/google/cadvisor
• https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/ContainerInsights-Prometheus-Setup-ECS.html