diff --git a/roles/matrix-coturn/defaults/main.yml b/roles/matrix-coturn/defaults/main.yml
index 4ae29a342..7edd559bc 100644
--- a/roles/matrix-coturn/defaults/main.yml
+++ b/roles/matrix-coturn/defaults/main.yml
@@ -17,6 +17,12 @@ matrix_coturn_config_path: "{{ matrix_coturn_base_path }}/turnserver.conf"
 # List of systemd services that matrix-coturn.service depends on
 matrix_coturn_systemd_required_services_list: ['docker.service']
 
+# A list of additional "volumes" to mount in the container.
+# This list gets populated dynamically at runtime. You can provide a different default value,
+# if you wish to mount your own files into the container.
+# Contains definition objects like this: `{"src": "/outside", "dst": "/inside", "options": "rw|ro|slave|.."}
+matrix_coturn_container_additional_volumes: []
+
 # A shared secret (between Synapse and Coturn) used for authentication.
 # You can put any string here, but generating a strong one is preferred (e.g. `pwgen -s 64 1`).
 matrix_coturn_turn_static_auth_secret: ""
diff --git a/roles/matrix-coturn/templates/systemd/matrix-coturn.service.j2 b/roles/matrix-coturn/templates/systemd/matrix-coturn.service.j2
index 59f18e53e..5cf569c2b 100644
--- a/roles/matrix-coturn/templates/systemd/matrix-coturn.service.j2
+++ b/roles/matrix-coturn/templates/systemd/matrix-coturn.service.j2
@@ -20,6 +20,9 @@ ExecStart=/usr/bin/docker run --rm --name matrix-coturn \
 			-p 3478:3478/udp \
 			-p {{ matrix_coturn_turn_udp_min_port }}-{{ matrix_coturn_turn_udp_max_port }}:{{ matrix_coturn_turn_udp_min_port }}-{{ matrix_coturn_turn_udp_max_port }}/udp \
 			-v {{ matrix_coturn_config_path }}:/turnserver.conf:ro \
+			{% for volume in matrix_coturn_container_additional_volumes %}
+			-v {{ volume.src }}:{{ volume.dst }}:{{ volume.options }} \
+			{% endfor %}
 			{{ matrix_coturn_docker_image }} \
 			-c /turnserver.conf
 ExecStop=-/usr/bin/docker kill matrix-coturn