Add the ability to control statistics-reporting for Synapse

Closes Github issue #3

roles/matrix-server/defaults/main.yml

@@ -64,6 +64,10 @@ matrix_synapse_max_log_files_count: 10
 matrix_synapse_rc_messages_per_second: 0.2
 matrix_synapse_rc_message_burst_count: 10.0
 
+# Enable this to allow Synapse to report utilization statistics about your server to matrix.org
+# (things like number of users, number of messages sent, uptime, load, etc.)
+matrix_synapse_report_stats: false
+
 # A list of additional "volumes" to mount in the container.
 # This list gets populated dynamically based on Synapse extensions that have been enabled.
 # Contains definition objects like this: `{"src": "/outside", "dst": "/inside", "options": "rw|ro|slave|.."}

roles/matrix-server/templates/synapse/homeserver.yaml.j2

@@ -447,7 +447,7 @@ trusted_third_party_id_servers:
 
 # Enable collection and rendering of performance metrics
 enable_metrics: False
-report_stats: False
+report_stats: {{ matrix_synapse_report_stats }}
 
 
 ## API Configuration ##