Add Slack support

docker-compose.yml

@@ -20,6 +20,7 @@ services:
       AWS_ACCESS_KEY_ID:
       AWS_SECRET_ACCESS_KEY:
       AWS_TAG:
+      SLACK_TOKEN:
     volumes:
       - ./:/app:cached
       - node_modules:/app/node_modules
@@ -61,8 +62,6 @@ services:
       POSTGRES_DB: "combinefm"
   redis:
     image: "redis:4.0.2-alpine"
-    ports:
-      - "6379:6379"
 
 volumes:
   node_modules: