间歇性问题在浏览器cookie Clearance获得502服务暂时不可用的服务＆amp;浏览器cookie Clearance 503 Badgateway nginx

Question

我们的Kubernetes Pod带有两个容器（NGINX容器和应用程序容器）。我们已经将NGINX配置定义为配置映射以及deployment.yaml文件，并使用最新代码在每个Sprint中部署应用程序。

但是，在测试它时，我们正在遇到间歇性问题，并且在浏览器cookie Clearance获得502服务暂时不可用＆amp;浏览器cookie Clearance 503 badgateway nginx错误。

我们已经定义了大_client_header_buffers 4 16k;从nginx.conf中的默认值避免cookie的任何问题。仍然没有解决，并且仍然获得502服务暂时不可用＆amp;浏览器cookie清除503 badgateway nginx错误。如果有人可以提出解决方案来克服它，我将非常感谢。

这是我用于部署的文件：

apiVersion: v1
kind: ConfigMap
metadata:
  name: {{APP_NAME}}-nginx
  namespace: {{NAME_SPACE}}
data:
  nginx.conf: |
    user  nginx;
    worker_processes  1;
    error_log  /var/log/nginx/error.log warn;
    pid        /var/run/nginx.pid;
    events {
        worker_connections  1024;
    }
    http {
        server_tokens off;
        include       /etc/nginx/mime.types;
        default_type  application/octet-stream;
        large_client_header_buffers 4 16k;
        log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                          '$status $body_bytes_sent "$http_referer" '
                          '"$http_user_agent" "$http_x_forwarded_for"';
        access_log  /var/log/nginx/access.log  main;
        sendfile        on;
        #tcp_nopush     on;
        keepalive_timeout  65;
        gzip  on;
        include /etc/nginx/conf.d/*.conf;
    }
  default.conf: |
    map $http_user_agent $ignore_ua {
      default                 1;
      "ELB-HealthChecker/2.0" 0;
      "kube-probe/1.21+"      0;
    }
    
    server {
       listen 3001 ssl;
       ssl_certificate     /etc/ssl/certs/ssc/ssc.crt;
       ssl_certificate_key /etc/ssl/certs/ssc/ssc.key;
       server_name         localhost;
       proxy_buffer_size          128k;
       proxy_buffers              4 256k;
       proxy_busy_buffers_size    256k;
       location ~* ^/(api/.+) {
          add_header X-Robots-Tag "noindex, nofollow, nosnippet, noarchive";
          proxy_pass http://localhost:5000/$1$is_args$args;
          access_log /var/log/nginx/access.log combined if=$ignore_ua;
       }
       location / {
          proxy_http_version 1.1;
          proxy_hide_header Cache-Control;
          proxy_hide_header Expires;
          proxy_ignore_headers Cache-Control Expires;
          proxy_intercept_errors on;
          add_header Cache-Control "private, no-cache, no-store, max-age=0, must-revalidate";
          proxy_pass http://localhost:5000/;
       }
    }