install xdebug

Author: skyred

frankenphp/Dockerfile

@@ -17,6 +17,10 @@ COPY --from=drupal:php8.4 /opt/drupal /opt/drupal
 COPY --from=drupal:php8.4 /usr/local/etc/php/conf.d/* /usr/local/etc/php/conf.d/
 COPY --from=composer/composer:2-bin /composer /usr/local/bin/
 
+# install Xdebug, from https://xdebug.org/docs/install
+RUN pecl install xdebug \
+  && docker-php-ext-enable xdebug
+
 # enable Xdebug remote debugging
 RUN { \
     echo 'xdebug.mode=debug'; \