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* builds out refactored setup topics * Automatically fix some relrefs with mv-manager Signed-off-by: Jack Baldry <jack.baldry@grafana.com> * Use refs for tutorials content which is outside of this repository Signed-off-by: Jack Baldry <jack.baldry@grafana.com> * Manually fix complicated relrefs Signed-off-by: Jack Baldry <jack.baldry@grafana.com> * consolidates team sync and db encryption topics * Fix relrefs Signed-off-by: Jack Baldry <jack.baldry@grafana.com> * updates setup index file * Convert TOML to YAML Signed-off-by: Jack Baldry <jack.baldry@grafana.com> * Add current alias for new alerting content Signed-off-by: Jack Baldry <jack.baldry@grafana.com> * Add current aliases to new setup-grafana and configure-security pages Signed-off-by: Jack Baldry <jack.baldry@grafana.com> * Update docs/sources/setup-grafana/configure-grafana/_index.md Co-authored-by: Torkel Ödegaard <torkel@grafana.com> * moves saml docs, updates order in TOC * Manually fix relrefs Signed-off-by: Jack Baldry <jack.baldry@grafana.com> * added usage insights topics, adjusted weights * corrected relrefs * Fix relrefs broken in rebase Signed-off-by: Jack Baldry <jack.baldry@grafana.com> Co-authored-by: Jack Baldry <jack.baldry@grafana.com> Co-authored-by: Torkel Ödegaard <torkel@grafana.com>
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Variable syntax | 100 |
Variable syntax
Panel titles and metric queries can refer to variables using two different syntaxes:
$varnameThis syntax is easy to read, but it does not allow you to use a variable in the middle of a word. Example: apps.frontend.$server.requests.count${var_name}Use this syntax when you want to interpolate a variable in the middle of an expression.${var_name:<format>}This format gives you more control over how Grafana interpolates values. Refer to [Advanced variable format options]({{< relref "advanced-variable-format-options/" >}}) for more detail on all the formatting types.[[varname]]Do not use. Deprecated old syntax, will be removed in a future release.
Before queries are sent to your data source the query is interpolated, meaning the variable is replaced with its current value. During interpolation, the variable value might be escaped in order to conform to the syntax of the query language and where it is used. For example, a variable used in a regex expression in an InfluxDB or Prometheus query will be regex escaped. Read the data source specific documentation topic for details on value escaping during interpolation.
For advanced syntax to override data source default formatting, refer to [Advanced variable format options]({{< relref "advanced-variable-format-options/" >}}).