diff --git a/Dockerfile b/Dockerfile
index c6feb51..44c97e2 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -10,3 +10,8 @@ RUN \
 COPY opt/ /opt
 COPY etc/ /opt/etc
 
+VOLUME /opt/etc
+EXPOSE 1883/tcp
+EXPOSE 8883/tcp
+EXPOSE 9001/tcp
+