Variables types
Grafana uses several types of variables.
Variable type | Description |
---|---|
Query | Query-generated list of values such as metric names, server names, sensor IDs, data centers, and so on. Add a query variable. |
Custom | Define the variable options manually using a comma-separated list. Add a custom variable. |
Text box | Display a free text input field with an optional default value. Add a text box variable. |
Constant | Define a hidden constant. Add a constant variable. |
Data source | Quickly change the data source for an entire dashboard. Add a data source variable. |
Interval | Interval variables represent time spans. Add an interval variable. |
Ad hoc filters | Key/value filters that are automatically added to all metric queries for a data source (InfluxDB, Prometheus, and Elasticsearch only). Add ad hoc filters. |
Global variables | Built-in variables that can be used in expressions in the query editor. Refer to Global variables. |
Chained variables | Variable queries can contain other variables. Refer to Chained variables. |
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