Annotations provide a way to integrate event data into your graphs. They are visualized as vertical lines and icons on all graph panels. When you hover over an annotation icon you can get title, tags, and text information for the event. In the Queries tab you can add queries that return annotation events.
You can add annotations directly from grafana by holding CTRL or CMD + click on graph (or drag region). These will be stored in Grafana's annotation database.
Checkout the Annotations documentation for more information.{{annotation.name}} | {{annotation.name}} (Built-in) | Edit |