Apache2 Config

// Replace yourdomain.tld with your domain
// Replace port with the port
// Only http
<VirtualHost *:80>
    ServerName yourdomain.tld
    DocumentRoot /home/web

    ErrorLog ${APACHE_LOG_DIR}/error.log
    CustomLog ${APACHE_LOG_DIR}/access.log combined

    # If you do not use a proxy
    <Directory /home/web>
        AllowOverride all
        Require all granted
    </Directory>

    # If you use a proxy
    ProxyPreserveHost On

    ProxyPass / http://127.0.0.1:port/
    ProxyPassReverse / http://127.0.0.1:port/
    # If the application use websockets
    RewriteCond %{HTTP:Upgrade} =websocket
    RewriteRule /(.*) ws://localhost:port/$1 [P,L]
    RewriteCond %{HTTP:Upgrade} !=websocket
    RewriteRule /(.*) http://localhost:port/$1 [P,L]
</VirtualHost>

// With SSL (https)
<VirtualHost *:80>
    ServerName yourdomain.tld

    ErrorLog ${APACHE_LOG_DIR}/error.log
    CustomLog ${APACHE_LOG_DIR}/access.log combined

    RewriteEngine on
    RewriteRule ^ https://%{HTTP_HOST}%{REQUEST_URI} [R=301,L]
</VirtualHost>

<VirtualHost *:443>
    ServerName yourdomain.tld
    DocumentRoot /home/web

    ErrorLog ${APACHE_LOG_DIR}/error.log
    CustomLog ${APACHE_LOG_DIR}/access.log combined

    SSLEngine On
    SSLCertificateFile    /etc/letsencrypt/live/yourdomain.tld/cert.pem
    SSLCertificateKeyFile /etc/letsencrypt/live/yourdomain.tld/privkey.pem
    SSLCertificateChainFile /etc/letsencrypt/live/yourdomain.tld/fullchain.pem

    # If you do not use a proxy
    <Directory /home/web>
        AllowOverride all
        Require all granted
    </Directory>

    # If you use a proxy
    ProxyPreserveHost On

    ProxyPass / http://127.0.0.1:port/
    ProxyPassReverse / http://127.0.0.1:port/
    # If the application use websockets
    RewriteCond %{HTTP:Upgrade} =websocket
    RewriteRule /(.*) ws://localhost:port/$1 [P,L]
    RewriteCond %{HTTP:Upgrade} !=websocket
    RewriteRule /(.*) http://localhost:port/$1 [P,L]
</VirtualHost>