added more docs and timeout value

roles/matrix-sms-bridge/defaults/main.yml

@@ -48,6 +48,8 @@ matrix_sms_bridge_homserver_domain: "{{ matrix_domain }}"
 matrix_sms_bridge_default_room: ''
 
 matrix_sms_bridge_gammu_modem: ''
+matrix_sms_bridge_modem_group: 'dialout'
+matrix_sms_bridge_gammu_reset_frequency: 0
 
 
 matrix_sms_bridge_configuration_yaml: |
@@ -122,6 +124,7 @@ matrix_sms_bridge_gammu_configuration: |
   InboxFormat = detail
   OutboxFormat = detail
   TransmitFormat = auto
+  ResetFrequency = {{ matrix_sms_bridge_gammu_reset_frequency }}
   debugLevel = 1
   LogFile = /data/log/smsd.log
   DeliveryReport = log

roles/matrix-sms-bridge/templates/systemd/matrix-sms-bridge.service.j2

@@ -20,7 +20,7 @@ ExecStartPre=/bin/sleep 5
 ExecStart=/usr/bin/docker run --rm --name matrix-sms-bridge \
 			--log-driver=none \
 			--user={{ matrix_user_uid }}:{{ matrix_user_gid }} \
-			--group-add dialout \
+			--group-add {{ matrix_sms_bridge_modem_group }} \
 			--cap-drop=ALL \
 			--network={{ matrix_docker_network }} \
 			{% if matrix_sms_bridge_container_http_host_bind_port %}