How to tunnel 2 AWS networks and don't use AWS services. Most of manual show how to do it, but without high availability. Here we can have asymmetric routing or any other.
Salt (SaltStack inc.) pretty cool tools for automation with I use many years. Here example of agent-less (salt-ssh) usage with dynamic inventory (roster and Ansible inventory plugin).
What we have: Telegraf with send stats to two influxdb servers and dashboard with we need point to only one server. Also we have Nagios as InfluxDB health monitoring.