upstream seaweedfs { server localhost:8333 fail_timeout=0; keepalive 20;}

## Also you can use unix domain socket instead for better performance:
# upstream seaweedfs { server unix:/tmp/seaweedfs-s3-8333.sock; keepalive 20;}

server {
	listen 443 ssl;

	# Assumes that your subdomain is s3
	# The regex will support path style as well as virtual-hosted style bucket URLs
	# path style: http://s3.yourdomain.com/mybucket
	# virtual-hosted style: http://mybucket.s3.yourdomain.com
	server_name ~^(?:(?<bucket>[^.]+)\.)s3\.yourdomain\.com;

	ignore_invalid_headers off;
	client_max_body_size 0;
	proxy_buffering off;

	proxy_set_header Host $host;
	proxy_set_header X-Real-IP $remote_addr;
	proxy_set_header X-Forwarded-For $remote_addr;
	proxy_set_header X-Forwarded-Proto $scheme;

	proxy_connect_timeout 300;
	proxy_http_version 1.1;
	proxy_set_header Connection "";
	chunked_transfer_encoding off;

	# If bucket subdomain is not empty,
	# rewrite request to backend.
	if ($bucket != "") {
		rewrite (.*) /$bucket$1 last;
	}

	location / {
		proxy_pass http://seaweedfs;
	}

	ssl on;
	ssl_certificate /{path_to_ssl_cert}/cert.pem;
	ssl_certificate_key /{path_to_ssl_cert}/key.pem;
}