default.conf

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

server {
    # Listen HTTP
    gzip on;
    gzip_min_length 1k;
    gzip_comp_level 9;
    gzip_types text/plain application/javascript application/x-javascript text/css application/xml text/javascript application/x-httpd-php image/jpeg image/gif image/png;
    gzip_vary on;
    gzip_disable "MSIE [1-6]\.";
    listen 80 default_server;
    listen [::]:80 default_server;
    server_name _;
    root /usr/share/nginx/html;
    proxy_buffers 8 32k;
    proxy_buffer_size 64k;
    absolute_redirect off;
    location /admin {
                alias /usr/share/nginx/html/admin;
                index index.html;
                try_files $uri $uri/ /admin/index.html;
        }
    location / {
        proxy_pass http://127.0.0.1:3001;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_set_header Upgrade $http_upgrade;
        # proxy_http_version 1.1;
        # proxy_set_header X-Forwarded-Host $host;
        # proxy_set_header X-Forwarded-Server $host;
        # proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header Connection $connection_upgrade;
        # proxy_set_header Host $http_host;
        # index  index.html index.htm;
    }
    location /api {
      proxy_pass http://127.0.0.1:3000;
        # proxy_http_version 1.1;
        # proxy_set_header X-Forwarded-Host $host;
        # proxy_set_header X-Forwarded-Server $host;
        proxy_set_header X-Real-IP $remote_addr;
        # proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
        # proxy_set_header Host $http_host;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection $connection_upgrade;
        # proxy_pass_request_headers on;
    }
}