Grafana（版本9）在域名A上运行时没有代理。我想从另一个域名B添加一个Nginx代理。
根据这个post，Grafana不支持多个域，需要智能代理。
基于on official documentation的第一次发布和this second post，Nginx配置应如下所示

# this is required to proxy Grafana Live WebSocket connections.
map $http_upgrade $connection_upgrade {
  default upgrade;
  '' close;
}

upstream grafana {
  server domainA;
}

server {
  listen 8080;
  server_name domainB;

  location / {
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header Host domainA;
    proxy_pass https://grafana-prj-sso-monitoring.apps.okd.svc.elca.ch;
  }

  # Proxy Grafana Live WebSocket connections.
  location /api/live/ {
    proxy_http_version 1.1;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection $connection_upgrade;
    proxy_set_header Host domainA;
    proxy_pass https://domainA;
  }
}

我可以通过代理到达Grafana，但面板返回“不允许原点”。我试图在两个位置上添加标准CORS标头，但没有成功

add_header 'Access-Control-Allow-Origin' '*';
add_header 'Access-Control-Allow-Methods' 'GET, POST';
add_header 'Access-Control-Allow-Headers' 'Authorization, Content-Type';
add_header 'Access-Control-Allow-Credentials' 'true';