hedgedoc/docs/content/references/config/general.md

General

environment variable	default	example	description
HD_BASE_URL	-	https://md.example.com	The URL the HedgeDoc instance is accessed with, like it is entered in the browser
HD_BACKEND_PORT	3000		The port the backend process listens on.
HD_FRONTEND_PORT	3001		The port the frontend process listens on.
HD_RENDERER_BASE_URL	Content of HD_BASE_URL		The URL the renderer runs on. If omitted this will be the same as HD_BASE_URL. For more detail see this faq entry
HD_LOGLEVEL	warn		The loglevel that should be used. Options are error, warn, info, debug or trace.
HD_SHOW_LOG_TIMESTAMP	true		Specifies if a timestamp should be added to the log statements. Disabling is useful for extern log management (systemd etc.)
HD_FORBIDDEN_NOTE_IDS	-	notAllowed,alsoNotAllowed	A list of note ids (separated by ,), that are not allowed to be created or requested by anyone.
HD_MAX_DOCUMENT_LENGTH	100000		The maximum length of any one document. Changes to this will impact performance for your users.
HD_PERSIST_INTERVAL	10	0, 5, 10, 20	The time interval in minutes for the periodic note revision creation during realtime editing. 0 deactivates the periodic note revision creation.