Simplify test docker

Signed-off-by: Simeon Widdis <sawiddis@amazon.com>

integrations/nginx/test/docker-compose.yaml

@@ -49,14 +49,8 @@ services:
     networks:
       - opensearch-net
   nginx:
-    image: nginx:latest
-    volumes:
-      # - ./nginx-otel/opentelemetry_module.conf:/etc/nginx/conf.d/opentelemetry_module.conf
-      - ./nginx-otel/default.conf:/etc/nginx/conf.d/default.conf
-    ports:
-      - 8080:80
+    image: kscarlett/nginx-log-generator:latest
     depends_on:
-      - flask-app
       - fluentbit
     networks:
       - opensearch-net # All of the containers will join the same Docker bridge network
@@ -80,22 +74,6 @@ services:
         condition: service_healthy
     networks:
       - opensearch-net
-  redis:
-    image: redis
-    ports:
-      - 6357:6357
-    networks:
-      - opensearch-net
-  flask-app:
-    build: flask-app
-    ports:
-      - 5000:5000
-    depends_on:
-      - redis
-    volumes:
-      - ./flask-app/app.py:/code/app.py
-    networks:
-      - opensearch-net
 
 volumes:
   opensearch: