Use redis to store the sessions

postgres/docker-compose-example.yml

@@ -1,6 +1,5 @@
 # Use postgres/postgres user/password credentials
 services:
-
   db:
     image: postgres
     restart: always
@@ -23,3 +22,11 @@ services:
     ports:
       - 8081:8080
 
+  cache:
+    image: redis
+    restart: always
+    ports:
+      - 6379:6379
+    command: redis-server --save 60 1 --loglevel warning
+    volumes:
+      - cache:/data