hedgedoc/docs/content/config/index.md
David Mehren b538c2c2a3 docs: minor fixes for config docs
Signed-off-by: David Mehren <git@herrmehren.de>
2023-03-25 13:05:42 +01:00

12 KiB

HedgeDoc can be configured via environment variables either directly or via an .env file.

The .env file

The .env file should be placed in the root of the project and contains key-value pairs of environment variables and their corresponding value. This can for example look like this:

HD_BASE_URL="http://localhost"
HD_MEDIA_BACKEND="filesystem"
HD_MEDIA_BACKEND_FILESYSTEM_UPLOAD_PATH="uploads/"
HD_DATABASE_TYPE="sqlite"
HD_DATABASE_NAME="./hedgedoc.sqlite"

We also provide an .env.example file containing a minimal configuration in the root of the project. This should help you to write your own configuration.

!!! warning
The minimal configuration provided in .env.example is exactly that: minimal. It will let you start HedgeDoc, but it is not meant to be used in production without prior changes.

General

environment variable default example description
HD_BASE_URL - https://md.example.com The URL the HedgeDoc instance runs on.
PORT 3000 The port the HedgeDoc instance runs 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.
HD_LOGLEVEL warn The loglevel that should be used. Options are error, warn, info, debug or trace.
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.

Why should I want to run my renderer on a different (sub-)domain?

If the renderer is provided by another domain, it's way harder to manipulate HedgeDoc or steal credentials from the rendered note content, because renderer and editor are more isolated. This increases the security of the software and greatly mitigates XSS attacks. However, you can run HedgeDoc without this extra security, but we recommend using it if possible.

Notes

environment variable default example description
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_GUEST_ACCESS write deny, read, write, create Defines the maximum access level for guest users to the instance. If guest access is set lower than the "everyone" permission of a note then the note permission will be overridden.
HD_PERMISSION_LOGGED_IN_DEFAULT_ACCESS write none, read, write The default permission for the "logged-in" group that is set on new notes.
HD_PERMISSION_EVERYONE_DEFAULT_ACCESS read none, read, write The default permission for the "everyone" group (logged-in & guest users), that is set on new notes created by logged-in users. Notes created by guests always set this to "write".

Authentication

!!! info HedgeDoc 2 does not yet support all authentication backends from HedgeDoc 1. You can follow this issue for details.

Local

HedgeDoc provides local accounts, handled internally. This feature only provides basic functionality, so for most environments we recommend using an external authentication mechanism, which also enable more secure authentication like 2FA or WebAuthn.

environment variable default example description
HD_AUTH_LOCAL_ENABLE_LOGIN false true, false This makes it possible to use the local accounts in HedgeDoc.
HD_AUTH_LOCAL_ENABLE_REGISTER false true, false This makes it possible to register new local accounts in HedgeDoc.
HD_AUTH_LOCAL_MINIMAL_PASSWORD_STRENGTH 2 0, 1, 2, 3, 4 The minimum zxcvbn-ts password score, that passwords need to have.

Password score (zxcvbn-ts)

score meaning minimum number of guesses required (approximated)
0 All passwords are allowed -
1 Only too guessable passwords are disallowed 1.000
2 too guessable and very guessable passwords are disallowed 1.000.000
3 safely unguessable and very unguessable passwords are allowed 100.000.000
4 Only very unguessable passwords are allowed 10.000.000.000

ToDo: Add other authentication methods.

Customization

environment variable default example description
HD_CUSTOM_NAME - DEMO Corp The text will be shown in the top right corner in the editor and on the intro page. If you also configure a custom logo, this will be used as the alt text of the logo.
HD_CUSTOM_LOGO - https://md.example.com/logo.png The logo will be shown in the top right corner in the editor and on the intro page.
HD_PRIVACY_URL - https://md.example.com/privacy The URL that should be linked as the privacy notice in the footer.
HD_TERMS_OF_USE_URL - https://md.example.com/terms The URL that should be linked as the terms of user in the footer.
HD_IMPRINT_URL - https://md.example.com/imprint The URL that should be linked as the imprint in the footer.

ToDo: Add screenshots to illustrate custom name and custom logo.

Database

We officially support and test these databases:

  • SQLite (for development and smaller instances)
  • PostgreSQL
  • MariaDB
environment variable default example description
HD_DATABASE_TYPE - postgres The database type you want to use. This can be postgres, mysql, mariadb or sqlite.
HD_DATABASE_NAME - hedgedoc The name of the database to use. When using SQLite, this is the path to the database file.
HD_DATABASE_HOST - db.example.com The host, where the database runs. Only if you're not using sqlite.
HD_DATABASE_PORT - 5432 The port, where the database runs. Only if you're not using sqlite.
HD_DATABASE_USER - hedgedoc The user that logs in the database. Only if you're not using sqlite.
HD_DATABASE_PASS - password The password to log into the database. Only if you're not using sqlite.

External services

environment variable default example description
HD_PLANTUML_SERVER - https://www.plantuml.com/plantuml The PlantUML server that HedgeDoc uses to render PlantUML diagrams. If this is not configured, PlantUML diagrams won't be rendered.
HD_IMAGE_PROXY - https://image-proxy.example.com ToDo: Add description

Media

There are a couple of different backends that can be used to host your images for HedgeDoc.