Extend IRC bridge configuration with some additional options

roles/matrix-bridge-appservice-irc/defaults/main.yml

@@ -11,6 +11,7 @@ matrix_appservice_irc_base_path: "{{ matrix_base_data_path }}/appservice-irc"
 matrix_appservice_irc_homeserver_url: 'http://matrix-synapse:8008'
 matrix_appservice_irc_homeserver_media_url: 'https://{{ matrix_server_fqn_matrix }}'
 matrix_appservice_irc_homeserver_domain: '{{ matrix_domain }}'
+matrix_appservice_irc_homeserver_enablePresence: true
 
 # Controls whether the matrix-appservice-discord container exposes its HTTP port (tcp/9999 in the container).
 #
@@ -29,10 +30,45 @@ matrix_appservice_irc_systemd_wanted_services_list: []
 matrix_appservice_irc_configuration_yaml: |
   #jinja2: lstrip_blocks: True
   homeserver:
+    # The URL to the home server for client-server API calls, also used to form the
+    # media URLs as displayed in bridged IRC channels:
     url: {{ matrix_appservice_irc_homeserver_url }}
+    #
+    # The URL of the homeserver hosting media files. This is only used to transform
+    # mxc URIs to http URIs when bridging m.room.[file|image] events. Optional. By
+    # default, this is the homeserver URL, specified above.
+    #
     media_url: {{ matrix_appservice_irc_homeserver_media_url }}
+
+    # Drop Matrix messages which are older than this number of seconds, according to
+    # the event's origin_server_ts.
+    # If the bridge is down for a while, the homeserver will attempt to send all missed
+    # events on reconnection. These events may be hours old, which can be confusing to
+    # IRC users if they are then bridged. This option allows these old messages to be
+    # dropped.
+    # CAUTION: This is a very coarse heuristic. Federated homeservers may have different
+    # clock times and hence produce different origin_server_ts values, which may be old
+    # enough to cause *all* events from the homeserver to be dropped.
+    # Default: 0 (don't ever drop)
+    # dropMatrixMessagesAfterSecs: 300 # 5 minutes
+
+    # The 'domain' part for user IDs on this home server. Usually (but not always)
+    # is the "domain name" part of the HS URL.
     domain: {{ matrix_appservice_irc_homeserver_domain }}
-    enablePresence: true
+
+    # Should presence be enabled for matrix clients on this bridge. If disabled on the
+    # homeserver then it should also be disabled here to avoid excess traffic.
+    # Default: true
+    enablePresence: {{ matrix_appservice_irc_homeserver_enablePresence|to_json }}
+
+  # Options here are generally only applicable to large-scale bridges and may have
+  # consequences greater than other options in this configuration file.
+  advanced:
+    # The maximum number of HTTP(S) sockets to maintain. Usually this is unlimited
+    # however for large bridges it is important to rate limit the bridge to avoid
+    # accidentally overloading the homeserver. Defaults to 1000, which should be
+    # enough for the vast majority of use cases.
+    maxHttpSockets: 1000
 
 matrix_appservice_irc_configuration_extension_yaml: |
   # Your custom YAML configuration for Appservice IRC servers goes here.