Apache2 und PHP5 sind bereits installiert.

apt update
apt install mysql-server -y
<mysql root@localhost Passwort setzen>
mysql_secure_installation

• NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MySQL
        SERVERS IN PRODUCTION USE!  PLEASE READ EACH STEP CAREFULLY!
  
  In order to log into MySQL to secure it, we'll need the current
  password for the root user.  If you've just installed MySQL, and
  you haven't set the root password yet, the password will be blank,
  so you should just press enter here.
  
  Enter current password for root (enter for none):
  ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)
  Enter current password for root (enter for none):
  OK, successfully used password, moving on...
  
  Setting the root password ensures that nobody can log into the MySQL
  root user without the proper authorisation.
  
  You already have a root password set, so you can safely answer 'n'.
  
  Change the root password? [Y/n] n
   ... skipping.
  
  By default, a MySQL installation has an anonymous user, allowing anyone
  to log into MySQL without having to have a user account created for
  them.  This is intended only for testing, and to make the installation
  go a bit smoother.  You should remove them before moving into a
  production environment.
  
  Remove anonymous users? [Y/n] y
   ... Success!
  
  Normally, root should only be allowed to connect from 'localhost'.  This
  ensures that someone cannot guess at the root password from the network.
  
  Disallow root login remotely? [Y/n] y
   ... Success!
  
  By default, MySQL comes with a database named 'test' that anyone can
  access.  This is also intended only for testing, and should be removed
  before moving into a production environment.
  
  Remove test database and access to it? [Y/n] y
   - Dropping test database...
  ERROR 1008 (HY000) at line 1: Can't drop database 'test'; database doesn't exist
   ... Failed!  Not critical, keep moving...
   - Removing privileges on test database...
   ... Success!
  
  Reloading the privilege tables will ensure that all changes made so far
  will take effect immediately.
  
  Reload privilege tables now? [Y/n] y
   ... Success!
  
  Cleaning up...
  
  All done!  If you've completed all of the above steps, your MySQL
  installation should now be secure.
  
  Thanks for using MySQL!

mysql -u root -p
CREATE DATABASE wp_waffelente;
CREATE USER wp_waffelente@localhost IDENTIFIED BY 'PASSW0RD1';
GRANT ALL PRIVILEGES ON wp_waffelente.* TO wp_waffelente@localhost;
FLUSH PRIVILEGES;
exit
service apache2 restart && service mysql restart
 
wget https://de.wordpress.org/latest-de_DE.zip
mkdir -p /var/www/html/waffeln-am-ententeich.de/
unzip -q latest-de_DE.zip -d /var/www/html/waffeln-am-ententeich.de/
mv /var/www/html/waffeln-am-ententeich.de/wordpress /var/www/html/waffeln-am-ententeich.de/root
mkdir /var/www/html/waffeln-am-ententeich.de/root/wp-content/uploads
chown -R www-data:www-data /var/www/html/waffeln-am-ententeich.de/root
chmod -R 755 /var/www/html/waffeln-am-ententeich.de/root
 
cp /var/www/html/waffeln-am-ententeich.de/root/wp-config-sample.php /var/www/html/waffeln-am-ententeich.de/root/wp-config.php
nano /var/www/html/waffeln-am-ententeich.de/root/wp-config.php

wp-config.php

<?php
define('FORCE_SSL_ADMIN', true);
 
define('DB_NAME', 'wp_waffelente');
define('DB_USER', 'wp_waffelente');
define('DB_PASSWORD', 'PASSW0RD1');
define('DB_HOST', 'localhost');
define('DB_CHARSET', 'utf8');
define('DB_COLLATE', '');
 
define('AUTH_KEY',         'Füge hier deine Zeichenkette ein');
define('SECURE_AUTH_KEY',  'Füge hier deine Zeichenkette ein');
define('LOGGED_IN_KEY',    'Füge hier deine Zeichenkette ein');
define('NONCE_KEY',        'Füge hier deine Zeichenkette ein');
define('AUTH_SALT',        'Füge hier deine Zeichenkette ein');
define('SECURE_AUTH_SALT', 'Füge hier deine Zeichenkette ein');
define('LOGGED_IN_SALT',   'Füge hier deine Zeichenkette ein');
define('NONCE_SALT',       'Füge hier deine Zeichenkette ein');
 
$table_prefix  = 'wp_';
define('WP_DEBUG', false);
if ( !defined('ABSPATH') )
        define('ABSPATH', dirname(__FILE__) . '/');
require_once(ABSPATH . 'wp-settings.php');

nano /etc/ssl/certs/waffeln.meinekleinefarm.net.pem
nano /etc/ssl/private/waffeln.meinekleinefarm.net.key
nano /etc/apache2/sites-available/waffeln.meinekleinefarm.net.conf

waffeln.meinekleinefarm.net.conf

<IfModule mod_ssl.c>
        <VirtualHost *:443>
                ServerAdmin webmaster@meinekleinefarm.net
                ServerName waffeln.meinekleinefarm.net
                ServerAlias waffeln.meinekleinefarm.net
 
                DocumentRoot /var/www/html/waffeln-am-ententeich.de/root/
 
                <Directory /var/www/html/waffeln-am-ententeich.de/root/>
                        AllowOverride All
                </Directory>
 
                ErrorLog ${APACHE_LOG_DIR}/error.log
                CustomLog ${APACHE_LOG_DIR}/access.log combined
 
                SSLEngine on
                SSLCertificateFile      /etc/ssl/certs/waffeln.meinekleinefarm.net.pem
                SSLCertificateKeyFile   /etc/ssl/private/waffeln.meinekleinefarm.net.key
                SSLCertificateChainFile /etc/ssl/certs/startcom_class1.pem
 
                <FilesMatch "\.(cgi|shtml|phtml|php)$">
                                SSLOptions +StdEnvVars
                </FilesMatch>
                <Directory /usr/lib/cgi-bin>
                                SSLOptions +StdEnvVars
                </Directory>
 
                BrowserMatch "MSIE [2-6]" \
                                nokeepalive ssl-unclean-shutdown \
                                downgrade-1.0 force-response-1.0
                BrowserMatch "MSIE [17-9]" ssl-unclean-shutdown
 
        </VirtualHost>
</IfModule>

a2ensite waffeln.meinekleinefarm.net.conf
service apache2 reload

https://www.example.com/wp-admin/install.php Username Password E-Mail → Fertig!