nginx.conf.example

user www-data;
worker_processes auto;
pid /run/nginx.pid;

events {
	worker_connections 32768;
}

http {
	sendfile on;
	tcp_nopush on;
	types_hash_max_size 2048;

	include /etc/nginx/mime.types;
	default_type application/octet-stream;

	ssl_protocols TLSv1 TLSv1.1 TLSv1.2 TLSv1.3; # Dropping SSLv3, ref: POODLE
	ssl_prefer_server_ciphers on;

	access_log /var/log/nginx/access.log;
	error_log /var/log/nginx/error.log;

	gzip on;

	limit_conn_zone $binary_remote_addr zone=addr:10m;

    upstream http_backend {
        server 127.0.0.1:9090;
        keepalive 32;
    }

    server {
        server_name nostr-relay.untethr.me; # managed by Certbot

        location / {
            limit_conn addr 10;
            proxy_pass http://http_backend/;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection "Upgrade";
            proxy_set_header Host $host;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_send_timeout 2d;
            proxy_read_timeout 2d;
        }

        listen [::]:443 ssl ipv6only=on; # managed by Certbot
        listen 443 ssl; # managed by Certbot
        ssl_certificate /etc/letsencrypt/live/nostr-relay.untethr.me/fullchain.pem; # managed by Certbot
        ssl_certificate_key /etc/letsencrypt/live/nostr-relay.untethr.me/privkey.pem; # managed by Certbot
        include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
        ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot
    }

    server {
        listen 80 ;
        listen [::]:80 ;
        server_name nostr-relay.untethr.me;

        # take notice use of "=" here:
        location = / {
            limit_conn addr 10;
            proxy_pass http://http_backend/;
            proxy_http_version 1.1;
            proxy_set_header Host $host;
            proxy_set_header X-Real-IP $remote_addr;
        }

        # allow http for nip11
        if ($http_accept = application/nostr+json) {
            break;
        }

        if ($host = nostr-relay.untethr.me) {
            return 301 https://$host$request_uri;
        } # managed by Certbot

        return 404; # managed by Certbot
    }

}