nginx.conf.template

user nginx;
worker_processes auto;
pid /run/nginx/nginx.pid;

events {
    worker_connections 1024;
}

http {
    include /etc/nginx/mime.types;
    default_type application/octet-stream;
    server_tokens off;

    log_format connection_details escape=json '{'
        '"time":"$time_iso8601",'
        '"remote_addr":"$remote_addr",'
        '"remote_user":"$remote_user",'
        '"request":"$request",'
        '"status":$status,'
        '"body_bytes_sent":$body_bytes_sent,'
        '"request_time":$request_time,'
        '"request_length":$request_length,'
        '"bytes_sent":$bytes_sent,'
        '"http_referer":"$http_referer",'
        '"http_user_agent":"$http_user_agent",'
        '"http_x_forwarded_for":"$http_x_forwarded_for",'
        '"host":"$host",'
        '"server_name":"$server_name",'
        '"scheme":"$scheme",'
        '"protocol":"$server_protocol",'
        '"method":"$request_method",'
        '"uri":"$request_uri",'
        '"connection":"$connection",'
        '"connection_requests":"$connection_requests",'
        '"ssl_protocol":"$ssl_protocol",'
        '"ssl_cipher":"$ssl_cipher"'
    '}';

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

    upstream fingerprint_logger {
        server ${FINGERPRINT_LISTEN_HOST}:${FINGERPRINT_LISTEN_PORT};
        keepalive 4;
    }

    sendfile on;
    keepalive_timeout 65;
    client_max_body_size ${CLIENT_MAX_BODY_SIZE};

    server {
        listen 80 default_server;
        server_name _;
        root /usr/share/nginx/html;
        index index.html;

        location ^~ /.well-known/acme-challenge/ {
            root /var/www/certbot;
            default_type text/plain;
            try_files $uri =404;
        }

        location / {
            return 301 https://$host$request_uri;
        }
    }

    server {
        listen 443 ssl default_server;
        server_name _;
        root /usr/share/nginx/html;
        index index.html;

        ssl_certificate ${TLS_CERTIFICATE};
        ssl_certificate_key ${TLS_CERTIFICATE_KEY};
        ssl_protocols TLSv1.2 TLSv1.3;
        ssl_session_cache shared:SSL:10m;
        ssl_session_timeout 1d;

        location = /fingerprint {
            client_body_buffer_size 512k;
            proxy_pass http://fingerprint_logger;
            proxy_http_version 1.1;
            proxy_set_header Connection "";
            proxy_set_header Host $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-Host $host;
            proxy_set_header X-Forwarded-Proto $scheme;
            proxy_read_timeout 10s;
            proxy_send_timeout 10s;
        }

        location / {
            try_files $uri $uri/ /index.html;
        }
    }
}