matrix-docker-ansible-deploy/docs/configuring-playbook-etherpad.md

Setting up Etherpad (optional)

Etherpad is an open source collaborative text editor that can be embedded in a Matrix chat room using the Dimension integration manager or used as standalone web app.

When enabled together with the Jitsi audio/video conferencing system (see our docs on Jitsi), it will be made available as an option during the conferences.

Adjusting the playbook configuration

To enable Etherpad, add the following configuration to your inventory/host_vars/matrix.example.com/vars.yml file:

etherpad_enabled: true

# Uncomment and adjust this part if you'd like to enable the admin web UI
# etherpad_admin_username: YOUR_USERNAME_HERE
# etherpad_admin_password: YOUR_PASSWORD_HERE

Adjusting the Etherpad URL

By default, this playbook installs Etherpad on the etherpad. subdomain (etherpad.example.com) and requires you to adjust your DNS records.

By tweaking the etherpad_hostname and etherpad_path_prefix variables, you can easily make the service available at a different hostname and/or path than the default one.

Example additional configuration for your inventory/host_vars/matrix.example.com/vars.yml file:

# Switch to the domain used for Matrix services (`matrix.example.com`),
# so we won't need to add additional DNS records for Etherpad.
etherpad_hostname: "{{ matrix_server_fqn_matrix }}"

# Expose under the /etherpad subpath
etherpad_path_prefix: /etherpad

Adjusting DNS records

Once you've decided on the domain and path, you may need to adjust your DNS records to point the Etherpad domain to the Matrix server.

By default, you will need to create a CNAME record for etherpad. See Configuring DNS for details about DNS changes.

If you've decided to reuse the matrix. domain, you won't need to do any extra DNS configuration.

Installing

After configuring the playbook and potentially adjusting your DNS records, run the playbook with playbook tags as below:

ansible-playbook -i inventory/hosts setup.yml --tags=setup-all,ensure-matrix-users-created,start

Notes:

• The ensure-matrix-users-created playbook tag makes the playbook automatically create the Etherpad admin user (etherpad_admin_username).

• The shortcut commands with just program are also available: just run-tags install-all,start or just run-tags setup-all,start

  just run-tags install-all,start is useful for maintaining your setup quickly when its components remain unchanged. If you adjust your vars.yml to remove other components, you'd need to run just run-tags setup-all,start, or these components will still remain installed. For more information about just shortcuts, take a look at this page: Running just commands

• If you change the Etherpad admin user's password (etherpad_admin_password in your vars.yml file) subsequently, the admin user's credentials on the homeserver won't be updated automatically. If you'd like to change the admin user's password, use a tool like synapse-admin to change it, and then update etherpad_admin_password to let the admin user know its new password.

Usage

The Etherpad UI should be available at https://etherpad.example.com, while the admin UI (if enabled) should then be available at https://etherpad.example.com/admin.

If you've decided on another hostname or path-prefix (e.g. https://matrix.example.com/etherpad), adjust these URLs accordingly before usage.

Managing / Deleting old pads

If you want to manage and remove old unused pads from Etherpad, you will first need to able Admin access as described above.

Then from the plugin manager page (https://etherpad.example.com/admin/plugins, install the adminpads2 plugin. Once installed, you should have a "Manage pads" section in the Admin web-UI.

How to use Etherpad widgets without an integration manager (like Dimension)

This is how it works in Element Web, it might work quite similar with other clients:

To integrate a standalone Etherpad in a room, create your pad by visiting https://etherpad.example.com. When the pad opens, copy the URL and send a command like this to the room: /addwidget URL. You will then find your integrated Etherpad within the right sidebar in the Widgets section.

Set Dimension default to the self-hosted Etherpad (optional)

If you decided to install Dimension integration manager alongside Etherpad, the Dimension administrator users can configure the default URL template.

The Dimension configuration menu can be accessed with the sprocket icon as you begin to add a widget to a room in Element Web. There you will find the Etherpad Widget Configuration action beneath the Widgets tab.

Removing the integrated Etherpad chat

If you wish to disable the Etherpad chat button, you can do it by appending ?showChat=false to the end of the pad URL, or the template.

Example: https://etherpad.example.com/p/$roomId_$padName?showChat=false

Known issues

If your Etherpad widget fails to load, this might be due to Dimension generating a Pad name so long, the Etherpad app rejects it.

$roomId_$padName can end up being longer than 50 characters. You can avoid having this problem by altering the template so it only contains the three word random identifier $padName.