matrix-docker-ansible-deploy/docs/configuring-playbook-bot-matrix-registration-bot.md

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# Setting up matrix-registration-bot (optional)
The playbook can install and configure [matrix-registration-bot](https://github.com/moan0s/matrix-registration-bot) for you.
The bot allows you to easily **create and manage registration tokens** aka. invitation codes.
It can be used for an invitation-based server,
where you invite someone by sending them a registration token (loook like this: `rbalQ0zkaDSRQCOp`). They can register as normal but have to provide a valid registration token in a final step of the registration.
See the project's [documentation](https://github.com/moan0s/matrix-registration-bot#supported-commands) to learn what it
does and why it might be useful to you.
## Configuration
To enable the bot, add the following configuration to your `inventory/host_vars/matrix.DOMAIN/vars.yml` file:
```yaml
matrix_bot_matrix_registration_bot_enabled: true
#By default, the playbook will set use the bot with a username like
## this: `@bot.matrix-registration-bot:DOMAIN`.
# To use a different username, uncomment & adjust the variable.
# matrix_bot_matrix_registration_bot_matrix_user_id_localpart: bot.matrix-registration-bot
# Generate a strong password here. Consider generating it with `pwgen -s 64 1`
matrix_bot_matrix_registration_bot_bot_password: PASSWORD_FOR_THE_BOT
# Enables registration
matrix_synapse_enable_registration: true
# Restrict registration to users with a token
matrix_synapse_registration_requires_token: true
```
The bot account will be automatically created.
## Installing
After configuring the playbook, run the [installation](installing.md) command again:
```
ansible-playbook -i inventory/hosts setup.yml --tags=setup-all,start
```
## Usage
To use the bot, message `@bot.matrix-registration-bot:DOMAIN` (where `DOMAIN` is your base domain, not the `matrix.` domain).
In this room send `help` and the bot will reply with all options.
You can also refer to the upstream [Usage documentation](https://github.com/moan0s/matrix-registration-bot#supported-commands).
If you have any questions, or if you need help setting it up, read the [troublshooting guide](https://github.com/moan0s/matrix-registration-bot/blob/main/docs/troubleshooting.md)
or join [#matrix-registration-bot:hyteck.de](https://matrix.to/#/#matrix-registration-bot:hyteck.de).
To clean the cache (session&encryption data) after you changed the bot's username, changed the login methon form access_token to password etc.. you can use
```bash
just run-tags bot-matrix-registration-bot-clean-cache
```