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92 lines
4.7 KiB
Markdown
92 lines
4.7 KiB
Markdown
# Setting up the Sygnal push gateway (optional)
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The playbook can install and configure the [Sygnal](https://github.com/matrix-org/sygnal) push gateway for you.
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See the project's [documentation](https://github.com/matrix-org/sygnal) to learn what it does and why it might be useful to you.
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**Note**: most people don't need to install their own gateway. As Sygnal's [Notes for application developers](https://github.com/matrix-org/sygnal/blob/master/docs/applications.md) documentation says:
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> It is not feasible to allow end-users to configure their own Sygnal instance, because the Sygnal instance needs the appropriate FCM or APNs secrets that belong to the application.
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This optional playbook component is only useful to people who develop/build their own Matrix client applications themselves.
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## Adjusting the playbook configuration
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To enable Sygnal, add the following configuration to your `inventory/host_vars/matrix.example.com/vars.yml` file:
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```yaml
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matrix_sygnal_enabled: true
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# You need at least 1 app defined.
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# The configuration below is incomplete. Read more below.
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matrix_sygnal_apps:
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com.example.myapp.ios:
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type: apns
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keyfile: /data/my_key.p8
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# .. more configuration ..
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com.example.myapp.android:
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type: gcm
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api_key: your_api_key_for_gcm
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# .. more configuration ..
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aux_file_definitions:
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- dest: "{{ matrix_sygnal_data_path }}/my_key.p8"
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content: |
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some
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content
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here
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mode: '0600'
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owner: "{{ matrix_user_username }}"
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group: "{{ matrix_user_groupname }}"
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```
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For a more complete example of available fields and values they can take, see `roles/custom/matrix-sygnal/templates/sygnal.yaml.j2` (or the [upstream `sygnal.yaml.sample` configuration file](https://github.com/matrix-org/sygnal/blob/master/sygnal.yaml.sample)).
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Configuring [GCM/FCM](https://firebase.google.com/docs/cloud-messaging/) is easier, as it only requires that you provide some config values.
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To configure [APNS](https://developer.apple.com/notifications/) (Apple Push Notification Service), you'd need to provide one or more certificate files. To do that, the above example configuration:
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- makes use of the [`aux` role](https://github.com/mother-of-all-self-hosting/ansible-role-aux) (and its `aux_file_definitions` variable) to make the playbook install files into `/matrix/sygnal/data` (the `matrix_sygnal_data_path` variable). See [`defaults/main.yml` file](https://github.com/mother-of-all-self-hosting/ansible-role-aux/blob/main/defaults/main.yml) of the `aux` role for usage examples. It also makes sure the files are owned by `matrix:matrix`, so that Sygnal can read them. Of course, you can also install these files manually yourself, if you'd rather not use `aux`.
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- references these files in the Sygnal configuration (`matrix_sygnal_apps`) using a path like `/data/..` (the `/matrix/sygnal/data` directory on the host system is mounted into the `/data` directory inside the container)
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### Adjusting the Sygnal URL
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By default, this playbook installs Sygnal on the `sygnal.` subdomain (`sygnal.example.com`) and requires you to [adjust your DNS records](#adjusting-dns-records).
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By tweaking the `matrix_sygnal_hostname` and `matrix_sygnal_path_prefix` variables, you can easily make the service available at a **different hostname and/or path** than the default one.
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Example additional configuration for your `inventory/host_vars/matrix.example.com/vars.yml` file:
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```yaml
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# Switch to the domain used for Matrix services (`matrix.example.com`),
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# so we won't need to add additional DNS records for Sygnal.
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matrix_sygnal_hostname: "{{ matrix_server_fqn_matrix }}"
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# Expose under the /sygnal subpath
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matrix_sygnal_path_prefix: /sygnal
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```
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## Adjusting DNS records
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Once you've decided on the domain and path, **you may need to adjust your DNS** records to point the Sygnal domain to the Matrix server.
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By default, you will need to create a CNAME record for `sygnal`. See [Configuring DNS](configuring-dns.md) for details about DNS changes.
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If you've decided to reuse the `matrix.` domain, you won't need to do any extra DNS configuration.
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## Installing
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After configuring the playbook and potentially [adjusting your DNS records](#adjusting-dns-records), run the [installation](installing.md) command:
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```
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ansible-playbook -i inventory/hosts setup.yml --tags=setup-all,start
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```
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## Usage
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To make use of your Sygnal installation, you'd need to build your own Matrix client application, which uses the same API keys (for [GCM/FCM](https://firebase.google.com/docs/cloud-messaging/)) and certificates (for [APNS](https://developer.apple.com/notifications/)) and is to your Sygnal URL endpoint (e.g. `https://sygnal.example.com`).
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Refer to Sygnal's [Notes for application developers](https://github.com/matrix-org/sygnal/blob/master/docs/applications.md) document.
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