diff --git a/roles/custom/matrix-livekit-jwt-service/defaults/main.yml b/roles/custom/matrix-livekit-jwt-service/defaults/main.yml
index 413cc3b84..ff10be323 100644
--- a/roles/custom/matrix-livekit-jwt-service/defaults/main.yml
+++ b/roles/custom/matrix-livekit-jwt-service/defaults/main.yml
@@ -128,3 +128,11 @@ matrix_livekit_jwt_service_restart_necessary: false
 
 # Support additional container arguments for the LiveKit JWT service
 matrix_livekit_jwt_service_container_additional_arguments: []
+
+# A list of additional "volumes" to mount in the container.
+# Contains definition objects like this: `{"type": "bind", "src": "/outside", "dst": "/inside", "options": "readonly"}.
+# See the `--mount` documentation for the `docker run` command.
+# Note: internally, this uses the `--mount` flag for mounting the specified volumes.
+matrix_livekit_jwt_service_container_additional_volumes: "{{ matrix_livekit_jwt_service_container_additional_volumes_auto + matrix_livekit_jwt_service_container_additional_volumes_custom }}"
+matrix_livekit_jwt_service_container_additional_volumes_auto: []
+matrix_livekit_jwt_service_container_additional_volumes_custom: []
diff --git a/roles/custom/matrix-livekit-jwt-service/templates/systemd/matrix-livekit-jwt-service.service.j2 b/roles/custom/matrix-livekit-jwt-service/templates/systemd/matrix-livekit-jwt-service.service.j2
index ea8030eeb..058013d92 100644
--- a/roles/custom/matrix-livekit-jwt-service/templates/systemd/matrix-livekit-jwt-service.service.j2
+++ b/roles/custom/matrix-livekit-jwt-service/templates/systemd/matrix-livekit-jwt-service.service.j2
@@ -22,6 +22,9 @@ ExecStartPre={{ devture_systemd_docker_base_host_command_docker }} create \
     {% if matrix_livekit_jwt_service_container_http_host_bind_port %}
     -p {{ matrix_livekit_jwt_service_container_http_host_bind_port }}:{{ matrix_livekit_jwt_service_container_port }} \
     {% endif %}
+    {% for volume in matrix_livekit_jwt_service_container_additional_volumes %}
+    --mount type={{ volume.type | default('bind' if '/' in volume.src else 'volume') }},src={{ volume.src }},dst={{ volume.dst }}{{ (',' + volume.options) if volume.options else '' }} \
+    {% endfor %}
     {% for arg in matrix_livekit_jwt_service_container_additional_arguments %}
     {{ arg }} \
     {% endfor %}