FROM ubuntu:20.04 RUN export DEBIAN_FRONTEND=noninteractive \ && apt update \ && apt install -y php7.4-cli php7.4-dev php7.4-mbstring php7.4-curl php7.4-intl git zip unzip libicu-dev RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer RUN mkdir -p /xdebug && git clone https://github.com/xdebug/xdebug.git --recursive --branch 3.1.0 /xdebug RUN cd /xdebug \ && phpize \ && ./configure --enable-xdebug \ && make \ && make install \ && echo 'zend_extension=xdebug' > /etc/php/7.4/cli/conf.d/99-xdebug.ini RUN php -v CMD ["sleep", "infinity"]