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Docker

The official Docker image is available on https://hub.docker.com/r/etherpad/etherpad.

Downloading from Docker Hub

If you are ok downloading a prebuilt image from Docker Hub, these are the commands:

# gets the latest published version
docker pull etherpad/etherpad

# gets a specific version
docker pull etherpad/etherpad:1.8.0

Build a personalized container

If you want to use a personalized settings file, you will have to rebuild your image. All of the following instructions are as a member of the docker group. By default, the Etherpad Docker image is built and run in production mode: no development dependencies are installed, and asset bundling speeds up page load time.

Rebuilding with custom settings

Edit <BASEDIR>/settings.json.docker at your will. When rebuilding the image, this file will be copied inside your image and renamed to setting.json.

Each configuration parameter can also be set via an environment variable, using the syntax "${ENV_VAR}" or "${ENV_VAR:default_value}". For details, refer to settings.json.template.

Rebuilding including some plugins

If you want to install some plugins in your container, it is sufficient to list them in the ETHERPAD_PLUGINS build variable. The variable value has to be a space separated, double quoted list of plugin names (see examples).

Some plugins will need personalized settings. Just refer to the previous section, and include them in your custom settings.json.docker.

Examples

Build a Docker image from the currently checked-out code:

docker build --tag <YOUR_USERNAME>/etherpad .

Include two plugins in the container:

docker build --build-arg ETHERPAD_PLUGINS="ep_codepad ep_author_neat" --tag <YOUR_USERNAME>/etherpad .

Running your instance:

To run your instance:

docker run --detach --publish <DESIRED_PORT>:9001 <YOUR_USERNAME>/etherpad

And point your browser to http://<YOUR_IP>:<DESIRED_PORT>

Options available by default

The settings.json.docker available by default allows to control almost every setting via environment variables.

General

Variable Description Default
TITLE The name of the instance Etherpad
FAVICON favicon default name, or a fully specified URL to your own favicon favicon.ico
DEFAULT_PAD_TEXT The default text of a pad Welcome to Etherpad! This pad text is synchronized as you type, so that everyone viewing this page sees the same text. This allows you to collaborate seamlessly on documents! Get involved with Etherpad at https://etherpad.org
IP IP which etherpad should bind at. Change to :: for IPv6 0.0.0.0
PORT port which etherpad should bind at 9001
ADMIN_PASSWORD the password for the admin user (leave unspecified if you do not want to create it)
USER_PASSWORD the password for the first user user (leave unspecified if you do not want to create it)

Database

Variable Description Default
DB_TYPE a database supported by https://www.npmjs.com/package/ueberdb2 not set, thus will fall back to DirtyDB (please choose one instead)
DB_HOST the host of the database
DB_PORT the port of the database
DB_NAME the database name
DB_USER a database user with sufficient permissions to create tables
DB_PASS the password for the database username
DB_CHARSET the character set for the tables (only required for MySQL)
DB_FILENAME in case DB_TYPE is DirtyDB, the database filename. var/dirty.db

If your database needs additional settings, you will have to use a personalized settings.json.docker and rebuild the container (or otherwise put the updated settings.json inside your image).

Pad Options

Variable Description Default
PAD_OPTIONS_NO_COLORS false
PAD_OPTIONS_SHOW_CONTROLS true
PAD_OPTIONS_SHOW_CHAT true
PAD_OPTIONS_SHOW_LINE_NUMBERS true
PAD_OPTIONS_USE_MONOSPACE_FONT false
PAD_OPTIONS_USER_NAME false
PAD_OPTIONS_USER_COLOR false
PAD_OPTIONS_RTL false
PAD_OPTIONS_ALWAYS_SHOW_CHAT false
PAD_OPTIONS_CHAT_AND_USERS false
PAD_OPTIONS_LANG en-gb

Shortcuts

Variable Description Default
PAD_SHORTCUTS_ENABLED_ALT_F9 focus on the File Menu and/or editbar true
PAD_SHORTCUTS_ENABLED_ALT_C focus on the Chat window true
PAD_SHORTCUTS_ENABLED_CMD_S save a revision true
PAD_SHORTCUTS_ENABLED_CMD_Z undo/redo true
PAD_SHORTCUTS_ENABLED_CMD_Y redo true
PAD_SHORTCUTS_ENABLED_CMD_I italic true
PAD_SHORTCUTS_ENABLED_CMD_B bold true
PAD_SHORTCUTS_ENABLED_CMD_U underline true
PAD_SHORTCUTS_ENABLED_CMD_H backspace true
PAD_SHORTCUTS_ENABLED_CMD_5 strike through true
PAD_SHORTCUTS_ENABLED_CMD_SHIFT_1 ordered list true
PAD_SHORTCUTS_ENABLED_CMD_SHIFT_2 shows a gritter popup showing a line author true
PAD_SHORTCUTS_ENABLED_CMD_SHIFT_L unordered list true
PAD_SHORTCUTS_ENABLED_CMD_SHIFT_N ordered list true
PAD_SHORTCUTS_ENABLED_CMD_SHIFT_C clear authorship true
PAD_SHORTCUTS_ENABLED_DELETE true
PAD_SHORTCUTS_ENABLED_RETURN true
PAD_SHORTCUTS_ENABLED_ESC in mozilla versions 14-19 avoid reconnecting pad true
PAD_SHORTCUTS_ENABLED_TAB indent true
PAD_SHORTCUTS_ENABLED_CTRL_HOME scroll to top of pad true
PAD_SHORTCUTS_ENABLED_PAGE_UP true
PAD_SHORTCUTS_ENABLED_PAGE_DOWN true

Skins

You can use the UI skin variants builder at /p/test#skinvariantsbuilder

For the colibris skin only, you can choose how to render the three main containers:

  • toolbar (top menu with icons)
  • editor (containing the text of the pad)
  • background (area outside of editor, mostly visible when using page style)

For each of the 3 containers you can choose 4 color combinations:

  • super-light
  • light
  • dark
  • super-dark

For the editor container, you can also make it full width by adding full-width-editor variant (by default editor is rendered as a page, with a max-width of 900px).

Variable Description Default
SKIN_NAME either no-skin, colibris or an existing directory under src/static/skins colibris
SKIN_VARIANTS multiple skin variants separated by spaces super-light-toolbar super-light-editor light-background

Logging

Variable Description Default
LOGLEVEL valid values are DEBUG, INFO, WARN and ERROR INFO
DISABLE_IP_LOGGING Privacy: disable IP logging false

Advanced

Variable Description Default
SHOW_SETTINGS_IN_ADMIN_PAGE hide/show the settings.json in admin page true
TRUST_PROXY set to true if you are using a reverse proxy in front of Etherpad (for example: Traefik for SSL termination via Let's Encrypt). This will affect security and correctness of the logs if not done false
IMPORT_MAX_FILE_SIZE maximum allowed file size when importing a pad, in bytes. 52428800 (50 MB)
IMPORT_EXPORT_MAX_REQ_PER_IP maximum number of import/export calls per IP. 10
IMPORT_EXPORT_RATE_LIMIT_WINDOW the call rate for import/export requests will be estimated in this time window (in milliseconds) 90000
SUPPRESS_ERRORS_IN_PAD_TEXT Should we suppress errors from being visible in the default Pad Text? false
REQUIRE_SESSION If this option is enabled, a user must have a session to access pads. This effectively allows only group pads to be accessed. false
EDIT_ONLY Users may edit pads but not create new ones. Pad creation is only via the API. This applies both to group pads and regular pads. false
SESSION_NO_PASSWORD If set to true, those users who have a valid session will automatically be granted access to password protected pads. false
MINIFY If true, all css & js will be minified before sending to the client. This will improve the loading performance massively, but makes it difficult to debug the javascript/css true
MAX_AGE How long may clients use served javascript code (in seconds)? Not setting this may cause problems during deployment. Set to 0 to disable caching. 21600 (6 hours)
ABIWORD Absolute path to the Abiword executable. Abiword is needed to get advanced import/export features of pads. Setting it to null disables Abiword and will only allow plain text and HTML import/exports. null
SOFFICE This is the absolute path to the soffice executable. LibreOffice can be used in lieu of Abiword to export pads. Setting it to null disables LibreOffice exporting. null
TIDY_HTML Path to the Tidy executable. Tidy is used to improve the quality of exported pads. Setting it to null disables Tidy. null
ALLOW_UNKNOWN_FILE_ENDS Allow import of file types other than the supported ones: txt, doc, docx, rtf, odt, html & htm true
REQUIRE_AUTHENTICATION This setting is used if you require authentication of all users. Note: "/admin" always requires authentication. false
REQUIRE_AUTHORIZATION Require authorization by a module, or a user with is_admin set, see below. false
AUTOMATIC_RECONNECTION_TIMEOUT Time (in seconds) to automatically reconnect pad when a "Force reconnect" message is shown to user. Set to 0 to disable automatic reconnection. 0
FOCUS_LINE_PERCENTAGE_ABOVE Percentage of viewport height to be additionally scrolled. e.g. 0.5, to place caret line in the middle of viewport, when user edits a line above of the viewport. Set to 0 to disable extra scrolling 0
FOCUS_LINE_PERCENTAGE_BELOW Percentage of viewport height to be additionally scrolled. e.g. 0.5, to place caret line in the middle of viewport, when user edits a line below of the viewport. Set to 0 to disable extra scrolling 0
FOCUS_LINE_PERCENTAGE_ARROW_UP Percentage of viewport height to be additionally scrolled when user presses arrow up in the line of the top of the viewport. Set to 0 to let the scroll to be handled as default by Etherpad 0
FOCUS_LINE_DURATION Time (in milliseconds) used to animate the scroll transition. Set to 0 to disable animation 0
FOCUS_LINE_CARET_SCROLL Flag to control if it should scroll when user places the caret in the last line of the viewport false
LOAD_TEST Allow Load Testing tools to hit the Etherpad Instance. WARNING: this will disable security on the instance. false
EXPOSE_VERSION Expose Etherpad version in the web interface and in the Server http header. Do not enable on production machines. false

Examples

Use a Postgres database, no admin user enabled:

docker run -d \
	--name etherpad         \
	-p 9001:9001            \
	-e 'DB_TYPE=postgres'   \
	-e 'DB_HOST=db.local'   \
	-e 'DB_PORT=4321'       \
	-e 'DB_NAME=etherpad'   \
	-e 'DB_USER=dbusername' \
	-e 'DB_PASS=mypassword' \
	etherpad/etherpad

Run enabling the administrative user admin:

docker run -d \
	--name etherpad \
	-p 9001:9001 \
	-e 'ADMIN_PASSWORD=supersecret' \
	etherpad/etherpad

Run a test instance running DirtyDB on a persistent volume:

docker run -d \
	-v etherpad_data:/opt/etherpad-lite/var \
	-p 9001:9001 \
	etherpad/etherpad