diff --git a/dockerfile/Dockerfile b/dockerfile/Dockerfile
index b28eb94..df3200e 100644
--- a/dockerfile/Dockerfile
+++ b/dockerfile/Dockerfile
@@ -1,4 +1,6 @@
 FROM nginx:alpine
+ENV DATABASE_URL=$DATABASE_URL
+RUN echo -e "\e[1;33mENVIRONMENT VARIABLES\e[0m"
 RUN env
 RUN echo "Hello, World!" > /usr/share/nginx/html/index.html
 HEALTHCHECK --interval=5s --timeout=3s --start-period=30s --retries=3 CMD wget -qO- http://localhost:80 || exit 1