用nginx代理phoenix应用

upstream fvlandingpagebygeo_phoenix {
  server 127.0.0.1:8900
}

server {
  server_name fvlandingpagebygeo.com www.fvlandingpagebygeo.com;

  listen 80 default_server;
  listen [::]:80 default_server;

  root /srv/www/fvlandingpagebygeo.com/htdocs;
  index index.html;

  location / {
    # pass the requests on to our proxy
    try_files $uri @proxy;
  }
  
  location @proxy {
    include proxy_params;
    proxy_redirect off;
    proxy_pass http://fvlandingpagebygeo_phoenix;
  }
}

map $http_upgrade $connection_upgrade {
  default upgrade;
  ''      close;
}

location ~ /(phx|phoenix) {
  proxy_pass http://127.0.0.1:4000;
  # Proxy Headers
  proxy_redirect off;
  proxy_http_version 1.1;
  proxy_set_header X-Real-IP $remote_addr;
  proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
  proxy_set_header Host $http_host;
  proxy_set_header X-Cluster-Client-Ip $remote_addr;

  # WebSockets
  proxy_set_header Upgrade $http_upgrade;
  proxy_set_header Connection $connection_upgrade;
}