add a Dockerfile for grav

grav/Dockerfile

@@ -0,0 +1,78 @@
+FROM php:7.4-apache
+LABEL maintainer="Andy Miller <rhuk@getgrav.org> (@rhukster)"
+
+# Enable Apache Rewrite + Expires Module
+RUN a2enmod rewrite expires && \
+    sed -i 's/ServerTokens OS/ServerTokens ProductOnly/g' \
+    /etc/apache2/conf-available/security.conf
+
+# Install dependencies
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    unzip \
+    libfreetype6-dev \
+    libjpeg62-turbo-dev \
+    libpng-dev \
+    libyaml-dev \
+    libzip4 \
+    libzip-dev \
+    zlib1g-dev \
+    libicu-dev \
+    g++ \
+    git \
+    cron \
+    vim \
+    && docker-php-ext-install opcache \
+    && docker-php-ext-configure intl \
+    && docker-php-ext-install intl \
+    && docker-php-ext-configure gd --with-freetype --with-jpeg \
+    && docker-php-ext-install -j$(nproc) gd \
+    && docker-php-ext-install zip \
+    && rm -rf /var/lib/apt/lists/*
+
+# set recommended PHP.ini settings
+# see https://secure.php.net/manual/en/opcache.installation.php
+RUN { \
+    echo 'opcache.memory_consumption=128'; \
+    echo 'opcache.interned_strings_buffer=8'; \
+    echo 'opcache.max_accelerated_files=4000'; \
+    echo 'opcache.revalidate_freq=2'; \
+    echo 'opcache.fast_shutdown=1'; \
+    echo 'opcache.enable_cli=1'; \
+    echo 'upload_max_filesize=128M'; \
+    echo 'post_max_size=128M'; \
+    echo 'expose_php=off'; \
+    } > /usr/local/etc/php/conf.d/php-recommended.ini
+
+RUN pecl install apcu \
+    && pecl install yaml-2.0.4 \
+    && docker-php-ext-enable apcu yaml
+
+# Set user to www-data
+RUN chown www-data:www-data /var/www
+USER www-data
+
+# Define Grav specific version of Grav or use latest stable
+ENV GRAV_VERSION latest
+
+# Install grav
+WORKDIR /var/www
+RUN curl -o grav-admin.zip -SL https://getgrav.org/download/core/grav-admin/${GRAV_VERSION} && \
+    unzip grav-admin.zip && \
+    mv -T /var/www/grav-admin /var/www/html && \
+    rm grav-admin.zip
+
+# Create cron job for Grav maintenance scripts
+RUN (crontab -l; echo "* * * * * cd /var/www/html;/usr/local/bin/php bin/grav scheduler 1>> /dev/null 2>&1") | crontab -
+
+# Return to root user
+USER root
+
+# Copy init scripts
+# COPY docker-entrypoint.sh /entrypoint.sh
+
+# provide container inside image for data persistence
+VOLUME ["/var/www/html"]
+
+# ENTRYPOINT ["/entrypoint.sh"]
+# CMD ["apache2-foreground"]
+CMD ["sh", "-c", "cron && apache2-foreground"]