The doc-generator tool is used to automatically generate the configuration flags documentation from the metadata information
provided in the code.
Run
The tool receives as input a template file and generates the list of configuration value blocks:
go run ./tools/doc-generator docs/sources/configuration/index.template > docs/sources/configuration/_index.md
doc tag
The description and default value of configuration values can be set via CLI flag registration by using the flag package.
However, for a more flexible documentation generation it is possible to combine this with the doc tag by applying the following custom values:
doc:"deprecated": sets the element as deprecated in the documentation.
doc:"hidden": does not show the element in the documentation.
doc:"description=foo": overrides the element's description (set via flag registration, if any) with foo.
doc:"default=<hostname>": sets the element's documentation default value as <hostname>.
Note: this only sets the default value shown in the documentation, it doesn't override the default configuration value.