fixed bug where the node container counldn't connect properly to the …

…redis container in docker compose

Dockerfile

@@ -11,5 +11,6 @@ WORKDIR /app
 COPY --from=0 /app .
 COPY . .
 ENV NODE_ENV=production
+ENV DOCKER=true
 EXPOSE 5000
 CMD ["node", "src/app.js"]

docker-compose.yml

@@ -1,14 +1,21 @@
 version: '3'
+
+networks:
+  redis:
+    driver: bridge
+
 services:
   node:
     build: .
     volumes:
       - ".:/src/app"
     ports:
       - "5000:5000"
-    links:
-      - redis_db
+    networks:
+      - redis
   redis_db:
     image: redis:alpine
     ports:
       - "6379"
+    networks:
+      - redis

src/middleware/redis.js

@@ -48,6 +48,9 @@ const options = {
     expire: 86400,
   }],
   passParam: 'pretty',
+  redis: {
+    host: process.env.DOCKER ? 'redis_db' : 'localhost',
+  },
 };
 
 module.exports = options;