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* Replace "just run-tags install-all/setup-all,start" with "just install-all/setup-all" Thanks to the tip by Slavi that the overhead of ensure-matrix-users-created is negligible. Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org> * Edit installing instructions - Move the anchor links to docs/just.md - Add note about running "ensure-matrix-users-created" tags, if ansible-playbook's tags not "setup-all,ensure-matrix-users-created,start", ie. either "setup-all,start", "setup-email2matrix,start", "setup-aux-files,setup-corporal,start", or "setup-matrix-user-verification-service,start" Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org> * Update descriptions about installation - Introduce the most conservative and stable raw ansible-playbook command. - Introduce the just commands on installing.md and maintenance-upgrading-services.md, not on quick-start.md, since it is too early for quick start guide readers who are just starting to climb learning curve to use the shortcuts. Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org> * Update docs/configuring-playbook-etherpad.md: remove the note about ensure-matrix-users-created Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org> --------- Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org> Co-authored-by: Suguru Hirahara <acioustick@noreply.codeberg.org>
63 lines
4.0 KiB
Markdown
63 lines
4.0 KiB
Markdown
# Enabling synapse-usage-exporter for Synapse usage statistics (optional)
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[synapse-usage-exporter](https://github.com/loelkes/synapse-usage-exporter) allows you to export the usage statistics of a Synapse homeserver to this container service and for the collected metrics to later be scraped by Prometheus.
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Synapse does not include usage statistics in its Prometheus metrics. They can be reported to an HTTP `PUT` endpoint 5 minutes after startup and from then on at a fixed interval of once every three hours. This role integrates a simple [Flask](https://flask.palletsprojects.com) project that offers an HTTP `PUT` endpoint and holds the most recent received record available to be scraped by Prometheus.
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Enabling this service will automatically:
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- install the synapse-usage-exporter service
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- re-configure Synapse to push (via HTTP `PUT`) usage statistics information to synapse-usage-exporter
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- re-configure [Prometheus](./configuring-playbook-prometheus-grafana.md) (if Prometheus is enabled), to periodically scrape metrics from synapse-usage-exporter
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- add a new [Grafana](./configuring-playbook-prometheus-grafana.md) dashboard (if Grafana is enabled) containing Synapse usage statistics
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## Adjusting the playbook configuration
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To enable synapse-usage-exporter, 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_synapse_usage_exporter_enabled: true
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# (Optional) Expose endpoint if you want to collect statistics from outside (from other homeservers).
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# If enabled, synapse-usage-exporter will be exposed publicly at `matrix.example.com/report-usage-stats/push`.
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# When collecting usage statistics for Synapse running on the same host, you don't need to enable this.
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# You can adjust the hostname and path via `matrix_synapse_usage_exporter_hostname` and `matrix_synapse_usage_exporter_path_prefix`.
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# matrix_synapse_usage_exporter_proxying_enabled: true
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```
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### Adjusting the synapse-usage-exporter URL
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By default, this playbook installs synapse-usage-exporter on the `matrix.` subdomain, at the `/report-usage-stats/push` path (https://matrix.example.com/report-usage-stats/push). This makes it easy to install it, because it **doesn't require additional DNS records to be set up**. If that's okay, you can skip this section.
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By tweaking the `matrix_synapse_usage_exporter_hostname` and `matrix_synapse_usage_exporter_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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# Change the default hostname and path prefix
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# These variables are used only if (`matrix_synapse_usage_exporter_proxying_enabled: true`)
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matrix_synapse_usage_exporter_hostname: sue.example.com
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matrix_synapse_usage_exporter_path_prefix: /
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```
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## Adjusting DNS records
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If you've changed the default hostname, **you may need to adjust your DNS** records to point the synapse-usage-exporter domain to the Matrix server.
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See [Configuring DNS](configuring-dns.md) for details about DNS changes.
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If you've decided to use the default hostname, 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 playbook with [playbook tags](playbook-tags.md) as below:
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<!-- NOTE: let this conservative command run (instead of install-all) to make it clear that failure of the command means something is clearly broken. -->
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```sh
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ansible-playbook -i inventory/hosts setup.yml --tags=setup-all,start
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```
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The shortcut commands with the [`just` program](just.md) are also available: `just install-all` or `just setup-all`
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`just install-all` 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 setup-all`, or these components will still remain installed. Note these shortcuts run the `ensure-matrix-users-created` tag too.
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