Drop explicit host ports Compose will automatically allocate unassigned ports. These can be looked up e.g. using `docker compose port'. Enables using several "instances" of the application with different project names (`docker compose -p <project name>').

<?xml version="1.0" encoding="UTF-8" ?>
<rest-server>
    <!--  The port which the ArtifactDatabase (ArtifactServer) will bind to. -->
    <port>8181</port>
    <listen>0.0.0.0</listen>
</rest-server>