The gd extension is required to export entries as EPUB.
ARG timezone='Europe/Paris'
RUN apt-get update && apt-get install -y \
- libmcrypt-dev libicu-dev libpq-dev libxml2-dev \
+ libmcrypt-dev libicu-dev libpq-dev libxml2-dev libpng12-dev libjpeg-dev \
+ && /usr/local/bin/docker-php-ext-configure gd --with-jpeg-dir=/usr/include \
&& docker-php-ext-install \
- iconv mcrypt mbstring intl pdo pdo_mysql pdo_pgsql
+ iconv mcrypt mbstring intl pdo pdo_mysql pdo_pgsql gd
RUN echo "date.timezone="$timezone > /usr/local/etc/php/conf.d/date_timezone.ini