diff --git a/Dockerfile.port b/Dockerfile.port
index 959a884b20005fa2be6bc95d65cf709482aa8f35..4ded3319d2daeea8d75b913efa442352d8363ed1 100644
--- a/Dockerfile.port
+++ b/Dockerfile.port
@@ -29,5 +29,7 @@ RUN \
 # Copy local files
 COPY root/ /
 
-# Communicate port to be used
+# Communicate ports and volumes to be used
 EXPOSE 3000
+
+VOLUME /config
diff --git a/Dockerfile.proxy b/Dockerfile.proxy
index d3a0501933f00b6295992fe6a76d2be30e449433..6021f0d470b0cfb686cfe25da4f24de6c890cbb6 100644
--- a/Dockerfile.proxy
+++ b/Dockerfile.proxy
@@ -29,5 +29,7 @@ RUN \
 # Copy local files
 COPY root/ /
 
-# Communicate port to be used
+# Communicate ports and volumes to be used
 EXPOSE 3000
+
+VOLUME /config