salix/front/nginx.conf

set_real_ip_from 0.0.0.0/0;
real_ip_header X-Forwarded-For;
log_format upstreamlog
	'[$time_local] $remote_addr -> $proxy_host:$upstream_addr '
	'"$request" $status $body_bytes_sent '
	'"$http_referer" "$http_user_agent"';
access_log  /var/log/nginx/access.log upstreamlog;

upstream back {
	server back_1:3000;
	server back_2:3000;
}
server {
	listen        80 default_server;
	listen        [::]:80 default_server;
	server_name   _;
	autoindex     off;
	client_max_body_size 50M;

	root /salix/dist;
	error_page 404 = @notfound;

	location @notfound {
		return 302 /;
	}
	location ~ ^(/[a-zA-Z0-9_-]+)?/(?<path>api(/.*)?)$ {
		proxy_pass http://back/$path$is_args$args;
	}
	location / {
		autoindex on;
	}
}