matrix-docker-ansible-deploy/docs/configuring-playbook-shared-secret-auth.md
Suguru Hirahara 66093857bc
Update docs for components related to authentication: adopt the common descriptions
Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>
2025-02-28 22:25:08 +09:00

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# Setting up the Shared Secret Auth password provider module (optional, advanced)
The playbook can install and configure [matrix-synapse-shared-secret-auth](https://github.com/devture/matrix-synapse-shared-secret-auth) for you.
See the project's [documentation](https://github.com/devture/matrix-synapse-shared-secret-auth/blob/master/README.md) to learn what it does and why it might be useful to you.
## Adjusting the playbook configuration
Add the following configuration to your `inventory/host_vars/matrix.example.com/vars.yml` file:
```yaml
matrix_synapse_ext_password_provider_shared_secret_auth_enabled: true
# Generate a strong shared secret here. You can create one with a command like `pwgen -s 64 1`.
matrix_synapse_ext_password_provider_shared_secret_auth_shared_secret: YOUR_SHARED_SECRET_GOES_HERE
```
### Authenticating only using a password provider
If you wish for users to **authenticate only against configured password providers** (like this one), **without consulting Synapse's local database**, you can disable it by adding the following configuration to your `vars.yml` file:
```yaml
matrix_synapse_password_config_localdb_enabled: false
```
## Installing
After configuring the playbook, run it with [playbook tags](playbook-tags.md) as below:
<!-- NOTE: let this conservative command run (instead of install-all) to make it clear that failure of the command means something is clearly broken. -->
```sh
ansible-playbook -i inventory/hosts setup.yml --tags=setup-all,start
```
The shortcut commands with the [`just` program](just.md) are also available: `just install-all` or `just setup-all`
`just install-all` is useful for maintaining your setup quickly ([2x-5x faster](../CHANGELOG.md#2x-5x-performance-improvements-in-playbook-runtime) than `just setup-all`) when its components remain unchanged. If you adjust your `vars.yml` to remove other components, you'd need to run `just setup-all`, or these components will still remain installed. Note these shortcuts run the `ensure-matrix-users-created` tag too.