fix: correct 7.4 docker to respect new requirements

Author: iBotPeaches

examples/laravel/Dockerfile

@@ -1,10 +1,12 @@
-FROM php:7.4
+FROM php:7.4-fpm
 
 # System dependencies needed
 RUN apt-get update && apt-get install -y \
     git \
     vim \
     openssl \
+    zip \
+    libzip-dev \
     curl \
     wget \
     gnupg \
@@ -20,10 +22,10 @@ RUN apt-get update && apt-get install -y \
     libfontconfig && rm -rf /var/lib/apt/lists/*
 
 # PHP Extensions needed for Laravel
-RUN docker-php-ext-install calendar zip intl mbstring pdo_mysql bcmath opcache pdo
+RUN docker-php-ext-install calendar zip intl pdo_mysql bcmath opcache pdo
 
 # Per project extensions needed for specific project
-RUN docker-php-ext-configure gd --with-freetype-dir=/usr/include/ --with-jpeg-dir=/usr/include/
+RUN docker-php-ext-configure gd --with-freetype=/usr/include/ --with-jpeg=/usr/include/
 RUN docker-php-ext-install gd
 RUN docker-php-ext-install bz2
 RUN docker-php-ext-install soap
@@ -38,12 +40,8 @@ COPY ./config/php.ini /usr/local/etc/php/
 # Set the working directory to /code
 WORKDIR /code
 
-# Composer: Make sure we're installing what we think we're installing!
-RUN curl -o /tmp/composer-setup.php https://getcomposer.org/installer \
-    && curl -o /tmp/composer-setup.sig https://composer.github.io/installer.sig \
-    && php -r "if (hash('SHA384', file_get_contents('/tmp/composer-setup.php')) !== trim(file_get_contents('/tmp/composer-setup.sig'))) { unlink('/tmp/composer-setup.php'); echo 'Invalid installer' . PHP_EOL; exit(1); }" \
-    && php /tmp/composer-setup.php --no-ansi --install-dir=/usr/local/bin --filename=composer --snapshot \
-    && rm -f /tmp/composer-setup.*
+# Make sure we're installing what we think we're installing!
+COPY --from=composer:latest /usr/bin/composer /usr/local/bin/composer
 
 # Node: We should use another container for this, since we are mixing PHP and Node
 RUN curl -sL https://deb.nodesource.com/setup_10.x | bash - \
@@ -58,6 +56,9 @@ RUN sed -i -e "s/pm.max_spare_servers\s*=\s*[0-9]*/pm.max_spare_servers = 10/g"
 RUN sed -i -e "s/;pm.max_requests\s*=\s*[0-9]*/pm.max_requests = 500/g" /usr/local/etc/php-fpm.d/www.conf
 RUN sed -i -e "s/access.log/;access.log/g" /usr/local/etc/php-fpm.d/docker.conf
 
+# Set ENV for yarn
+ENV PATH "$PATH:/root/.yarn/bin"
+
 # Expose PHP and execute php-fpm
 EXPOSE 9000
 CMD ["php-fpm"]