diff --git a/.env b/.env
new file mode 100644
index 0000000..70fb2a3
--- /dev/null
+++ b/.env
@@ -0,0 +1,3 @@
+WEB_PORT=5005
+CONFIG_DIR=./config
+DATA_DIR=./data
diff --git a/docker-compose.yml b/docker-compose.yml
index ad08caa..5ce5dee 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -3,12 +3,12 @@ services:
   web:
     build: .
     ports:
-     - "5005:5005"
+     - "${WEB_PORT}:5005"
     links:
      - mongo
      - rabbitmq
     volumes:
-     - "./config:/app/config"
+     - "${CONFIG_DIR}:/app/config"
      - "./static:/app/static"
     environment:
      - MICROBLOGPUB_AMQP_BROKER=pyamqp://guest@rabbitmq//
@@ -25,6 +25,6 @@ services:
   mongo:
     image: "mongo:latest"
     volumes:
-     - "./data:/data/db"
+     - "${DATA_DIR}:/data/db"
   rabbitmq:
     image: "rabbitmq:latest"