I found your message on the instructables page. I used your .sh files and also your Graphana.json and imported it. Each panel in the dashboard has data in it and has what I expect in there. However, I am getting red message boxes all down the right side of the dashboard indicating:
Annotation Query Failed
Query missing in annotation definition
I updated the json file and set all the datasources to mydb because that's the name I gave it.
"datasource": "mydb",
Can you think of what I may have done wrong to create these errors?