What are Grafana variables and how do I use them?

What are Grafana variables and how do I use them?

Grafana variables are placeholders that allow you to create dynamic and reusable dashboards. You can use them to filter data, change queries, and customize visualizations.

Can you give me an example of how to create a variable?

Sure! To create a variable, go to your dashboard settings, select 'Variables', and click 'Add variable'. You can choose the type, such as Query, and define the data source.

How do I use the variable in a query?

You can use the variable in your query by referencing it with the syntax $variableName. For example, if your variable is named 'region', you would use $region in your query.

Can I use multiple variables in a single query?

Yes, you can use multiple variables in a single query. Just reference each variable with the $ syntax, like $region and $instance, to filter your data accordingly.