diff --git a/.env.example b/.env.example
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+# Fill with your own PostgreSQL settings and save it in an .env file
+# for db & flask containers
+RDS_USERNAME=testusername
+RDS_PASSWORD=testpassword
+RDS_DB_NAME=testdb
+
+# RDS_HOSTNAME name of the db container service in the docker-compose
+RDS_HOSTNAME=db 
+RDS_PORT=5432
+
+SECRET_KEY=test-secret-key-123456789!?
+REDIS_MESSAGE_QUEUE_URL=redis://redis