Fix Dockerfile

Author: gotzmann

Dockerfile

@@ -1,20 +1,30 @@
 FROM ubuntu:20.04
 
+ARG PHP=7.4
 ARG DEBIAN_FRONTEND=noninteractive
 
-RUN apt-get update -yqq && apt-get install -yqq \
-	software-properties-common build-essential 
+# Install development tooling
+RUN apt-get update -yqq && \
+	apt-get install -yqq \
+	software-properties-common build-essential git unzip
 
-RUN LC_ALL=C.UTF-8 add-apt-repository ppa:ondrej/php > /dev/null
-RUN apt-get update -yqq && apt-get install -yqq \
-    php7.4-dev php7.4-curl composer php-pear pkg-config libevent-dev 
+# Install PHP and extensions including PostgreSQL support
+RUN apt-get install -yqq \
+	php-pear pkg-config libevent-dev \
+	php${PHP}-dev php${PHP}-mbstring php${PHP}-curl php${PHP}-pgsql
 
+# Install libevent to speed up the framework
 RUN printf "\n\n /usr/lib/x86_64-linux-gnu/\n\n\nno\n\n\n" | \
     pecl install event && \
-    echo "extension=event.so" > /etc/php/7.4/cli/conf.d/event.ini
+    echo "extension=event.so" > /etc/php/${PHP}/cli/conf.d/event.ini
+
+# Install Composer 2.0
+RUN curl -sS https://getcomposer.org/installer -o composer-setup.php && \
+    php composer-setup.php --install-dir=/usr/local/bin --filename=composer
 
 COPY ./ /var/www/
 WORKDIR /var/www
-RUN composer install --optimize-autoloader --classmap-authoritative --no-dev --quiet
+
+RUN composer install --optimize-autoloader --classmap-authoritative --no-dev 
 
 CMD php app.php start