官方文旦地址：https://grafana.com/tutorials/run-grafana-behind-a-proxy/

一级路径

只需要修改nginx配置文件

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

server {
  listen 80;
  root /usr/share/nginx/html;
  index index.html index.htm;

  location / {
    proxy_pass http://localhost:3000/;
  }

  # Proxy Grafana Live WebSocket connections.
  location /api/live {
    proxy_http_version 1.1;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection "Upgrade";
    proxy_set_header Host $http_host;
    proxy_pass http://localhost:3000/;
  }
}

二级路径

除了修改nginx配置文件外，还需要修改grafana配置文件

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

server {
  listen 80;
  root /usr/share/nginx/www;
  index index.html index.htm;

  location ^~ /grafana/ {
   proxy_pass http://localhost:3000/;
  }

  # Proxy Grafana Live WebSocket connections.
  location ^~ /grafana/api/live {
    proxy_http_version 1.1;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection "Upgrade";
    proxy_set_header Host $http_host;
    proxy_pass http://localhost:3000/;
  }  
}

修改grafana.ini配置文件

# vim /etc/grafana/grafana.ini
root_url = %(protocol)s://%(domain)s:%(http_port)s/grafana
serve_from_sub_path = true

# systemctl restart grafana-server