I have Grafana and Influxdb setup but it is fairly complex for what I am doing. I don't want to spend a bunch of time creating dashboards and thinking about the movement of data. I am looking for something simple.
I am looking to mostly monitor uptime and Ansible automations.
You could have a look at munin. It's incredibly simple but effective. Quite easy to write your own plugins for if you're missing some data. http://munin-monitoring.org/