having node_exporter can be a simple starting point for people that are learning about Prometheus and monitoring https://github.com/prometheus/node_exporter.

• Node_exporter should be part of deploy/kubernetes/manifests-monitoring
• Prometheus configuration should be updated properly to target the node exporter

Description

With the changes introduced in #227, Noma API calls for job scaling operations were updated to permit stale reads. We should update the remainder of Nomad API calls for consistency and decreased load on the Nomad Servers.

Including:

• IP Address in octet format (currently, the host name is something obscure like "ip-10-123-123-123" which is not nice to work with
• EC2 Instance ID

Retrieve it from the instance metadata.