Field overrides | Grafana Labs
grafana.com › latest › panelsGrafana displays a list of field overrides, if any have been created for this panel. Add a field override. You can override as many fields and add as many field options to each override as you want to. Navigate to the panel you want to edit, click the panel title, and then click Edit. In the side pane, click Overrides. Click Add field override.
regex | Grafana Labs
https://grafana.com/docs/loki/latest/clients/promtail/stages/regexregex stage. The regex stage is a parsing stage that parses a log line using a regular expression. Named capture groups in the regex support adding data into the extracted map. Schema regex: # The RE2 regular expression. Each capture group must be named. expression: <string> # Name from extracted data to parse. If empty, uses the log message.