VariableType🔗
Dashboard variable type
query: Query-generated list of values such as metric names, server names, sensor IDs, data centers, and so on.
adhoc: Key/value filters that are automatically added to all metric queries for a data source (Prometheus, Loki, InfluxDB, and Elasticsearch only).
constant: Define a hidden constant.
datasource: Quickly change the data source for an entire dashboard.
interval: Interval variables represent time spans.
textbox: Display a free text input field with an optional default value.
custom: Define the variable options manually using a comma-separated list.
system: Variables defined by Grafana. See: https://grafana.com/docs/grafana/latest/dashboards/variables/add-template-variables/#global-variables