add celery background tasks and redis server for celery, also modify django to use redis instead of postgres for caching for speed improvement and alleviating sql traffic

server/docker-compose_web.yml

@@ -1,17 +1,20 @@
+x-common: &common
+  restart: always
+  env_file:
+    - .env
+  environment:
+    - DEBUG=False
+    - DISABLE_SIGNUPS=True
+    - PUBLIC_HOST=pkmntrade.club
+    - ALLOWED_HOSTS=pkmntrade.club,127.0.0.1
+
 services:
   web:
+    <<: *common
     image: ghcr.io/xe/x/httpdebug
     entrypoint: ["/ko-app/httpdebug", "--bind", ":8000"]
     #image: badbl0cks/pkmntrade-club:stable
     #command: ["granian", "--interface", "wsgi", "pkmntrade_club.django_project.wsgi:app", "--host", "0.0.0.0", "--port", "8000", "--workers", "1", "--workers-kill-timeout", "180", "--access-log"] 
-    # env_file:
-    #   - .env
-    # environment:
-    #   - DEBUG=False
-    #   - DISABLE_SIGNUPS=True
-    #   - PUBLIC_HOST=pkmntrade.club
-    #   - ALLOWED_HOSTS=pkmntrade.club,127.0.0.1
-    restart: always
     deploy:
       mode: replicated
       replicas: 4
@@ -21,8 +24,7 @@ services:
     #   timeout: 10s
     #   retries: 3
     #   start_period: 30s
-    # secrets:
-    #   - env_file_base64
-# secrets:
-#   env_file_base64:
-#     environment: ENV_FILE_BASE64
+  celery:
+    <<: *common
+    image: badbl0cks/pkmntrade-club:stable
+    command: ["celery", "-A", "pkmntrade_club.django_project", "worker", "-l", "INFO", "-B", "-E"]