docker-joomla/Dockerfile.template

{{
	def is_alpine:
		env.variant | index("alpine")
-}}
# from https://downloads.joomla.org/technical-requirements
FROM php:{{ env.phpVersion }}-{{ env.variant }}
LABEL maintainer="{{ env.joomlaMaintainers }}"

# Disable remote database security requirements.
ENV JOOMLA_INSTALLATION_DISABLE_LOCALHOST_CHECK=1
{{ if is_alpine then ( -}}
RUN set -eux; \
	apk add --no-cache \
# in theory, docker-entrypoint.sh is POSIX-compliant, but priority is a working, consistent image
		bash \
# Ghostscript is required for rendering PDF previews
		ghostscript \
# Alpine package for "imagemagick" contains ~120 .so files
		imagemagick \
{{ if env.joomlaPackageType == "tar.zst" then ( -}}
# Needed for the zst joomla package
		zstd \
{{ ) else "" end -}}
	;
{{ ) else ( -}}
RUN set -eux; \
	apt-get update; \
	apt-get install -y --no-install-recommends \
# Ghostscript is required for rendering PDF previews
		ghostscript \
{{ if env.joomlaPackageType == "tar.zst" then ( -}}
# Needed for the zst joomla package
		zstd \
{{ ) else "" end -}}
	; \
	rm -rf /var/lib/apt/lists/*
{{ ) end -}}

# install the PHP extensions we need.
RUN set -ex; \
	\
{{ if is_alpine then ( -}}
	apk add --no-cache --virtual .build-deps \
		$PHPIZE_DEPS \
		autoconf \
		bzip2-dev \
		gmp-dev \
		icu-dev \
		freetype-dev \
		imagemagick-dev \
		libjpeg-turbo-dev \
		libmemcached-dev \
		libpng-dev \
		libwebp-dev \
		libzip-dev \
		openldap-dev \
		pcre-dev \
		postgresql-dev \
	; \
{{ ) else ( -}}
	savedAptMark="$(apt-mark showmanual)"; \
	\
	apt-get update; \
	apt-get install -y --no-install-recommends \
		libbz2-dev \
		libgmp-dev \
		libicu-dev \
		libfreetype6-dev \
		libjpeg-dev \
		libldap2-dev \
		libmemcached-dev \
		libmagickwand-dev \
		libpq-dev \
		libpng-dev \
		libwebp-dev \
		libzip-dev \
	; \
{{ ) end -}}
	\
	docker-php-ext-configure gd \
		--with-freetype \
		--with-jpeg \
		--with-webp \
	; \
{{ if is_alpine then ( -}}
	docker-php-ext-configure ldap; \
{{ ) else ( -}}
	debMultiarch="$(dpkg-architecture --query DEB_BUILD_MULTIARCH)"; \
	docker-php-ext-configure ldap --with-libdir="lib/$debMultiarch"; \
{{ ) end -}}
	docker-php-ext-install -j "$(nproc)" \
		bz2 \
		bcmath \
		exif \
		gd \
		gmp \
		intl \
		ldap \
		mysqli \
		pdo_mysql \
		pdo_pgsql \
		pgsql \
		zip \
	; \
{{ if is_alpine then ( -}}
# WARNING: imagick is likely not supported on Alpine: https://github.com/Imagick/imagick/issues/328
{{ ) else "" end -}}
# https://pecl.php.net/package/imagick
	pecl install imagick-3.7.0; \
	docker-php-ext-enable imagick; \
	rm -r /tmp/pear; \
	\
# some misbehaving extensions end up outputting to stdout
	out="$(php -r 'exit(0);')"; \
	[ -z "$out" ]; \
	err="$(php -r 'exit(0);' 3>&1 1>&2 2>&3)"; \
	[ -z "$err" ]; \
	\
	extDir="$(php -r 'echo ini_get("extension_dir");')"; \
	[ -d "$extDir" ]; \
{{ if is_alpine then ( -}}
	\
# pecl will claim success even if one install fails, so we need to perform each install separately
	pecl install APCu-{{ env.pecl_APCu }}; \
	pecl install memcached-{{ env.pecl_memcached }}; \
	pecl install redis-{{ env.pecl_redis }}; \
	\
	docker-php-ext-enable \
		apcu \
		memcached \
		redis \
	; \
	rm -r /tmp/pear; \
	\
	runDeps="$( \
		scanelf --needed --nobanner --format '%n#p' --recursive "$extDir" \
			| tr ',' '\n' \
			| sort -u \
			| awk 'system("[ -e /usr/local/lib/" $1 " ]") == 0 { next } { print "so:" $1 }' \
	)"; \
	apk add --no-network --virtual .joomla-phpexts-rundeps $runDeps; \
	apk del --no-network .build-deps; \
{{ ) else ( -}}
# pecl will claim success even if one install fails, so we need to perform each install separately
	pecl install APCu-{{ env.pecl_APCu }}; \
	pecl install memcached-{{ env.pecl_memcached }}; \
	pecl install redis-{{ env.pecl_redis }}; \
	\
	docker-php-ext-enable \
		apcu \
		memcached \
		redis \
	; \
	rm -r /tmp/pear; \
	\
# reset apt-mark's "manual" list so that "purge --auto-remove" will remove all build dependencies
	apt-mark auto '.*' > /dev/null; \
	apt-mark manual $savedAptMark; \
	ldd "$extDir"/*.so \
		| awk '/=>/ { so = $(NF-1); if (index(so, "/usr/local/") == 1) { next }; gsub("^/(usr/)?", "", so); print so }' \
		| sort -u \
		| xargs -r dpkg-query --search \
		| cut -d: -f1 \
		| sort -u \
		| xargs -rt apt-mark manual; \
	\
	apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false; \
	rm -rf /var/lib/apt/lists/*; \
{{ ) end -}}
	\
	! { ldd "$extDir"/*.so | grep 'not found'; }; \
# check for output like "PHP Warning:  PHP Startup: Unable to load dynamic library 'foo' (tried: ...)
	err="$(php --version 3>&1 1>&2 2>&3)"; \
	[ -z "$err" ]

# set recommended PHP.ini settings
# see https://secure.php.net/manual/en/opcache.installation.php
RUN set -eux; \
	docker-php-ext-enable opcache; \
	{ \
		echo 'opcache.memory_consumption=128'; \
		echo 'opcache.interned_strings_buffer=8'; \
		echo 'opcache.max_accelerated_files=4000'; \
		echo 'opcache.revalidate_freq=2'; \
	} > /usr/local/etc/php/conf.d/opcache-recommended.ini
# set recommended error logging
RUN { \
# https://www.php.net/manual/en/errorfunc.constants.php
		echo 'error_reporting = E_ERROR | E_WARNING | E_PARSE | E_CORE_ERROR | E_CORE_WARNING | E_COMPILE_ERROR | E_COMPILE_WARNING | E_RECOVERABLE_ERROR'; \
		echo 'display_errors = Off'; \
		echo 'display_startup_errors = Off'; \
		echo 'log_errors = On'; \
		echo 'error_log = /dev/stderr'; \
		echo 'log_errors_max_len = 1024'; \
		echo 'ignore_repeated_errors = On'; \
		echo 'ignore_repeated_source = Off'; \
		echo 'html_errors = Off'; \
	} > /usr/local/etc/php/conf.d/error-logging.ini
{{ if env.variant == "apache" then ( -}}

RUN set -eux; \
	a2enmod rewrite expires; \
	\
# https://httpd.apache.org/docs/2.4/mod/mod_remoteip.html
	a2enmod remoteip; \
	{ \
		echo 'RemoteIPHeader X-Forwarded-For'; \
# these IP ranges are reserved for "private" use and should thus *usually* be safe inside Docker
		echo 'RemoteIPInternalProxy 10.0.0.0/8'; \
		echo 'RemoteIPInternalProxy 172.16.0.0/12'; \
		echo 'RemoteIPInternalProxy 192.168.0.0/16'; \
		echo 'RemoteIPInternalProxy 169.254.0.0/16'; \
		echo 'RemoteIPInternalProxy 127.0.0.0/8'; \
	} > /etc/apache2/conf-available/remoteip.conf; \
	a2enconf remoteip; \
# (replace all instances of "%h" with "%a" in LogFormat)
	find /etc/apache2 -type f -name '*.conf' -exec sed -ri 's/([[:space:]]*LogFormat[[:space:]]+"[^"]*)%h([^"]*")/\1%a\2/g' '{}' +
{{ ) else "" end -}}

VOLUME /var/www/html

# Define Joomla version and expected SHA512 signature
ENV JOOMLA_VERSION {{ env.joomlaVersion }}
ENV JOOMLA_SHA512 {{ env.joomlaSha512 }}

# Download package and extract to web volume
RUN set -ex; \
	curl -o joomla.{{ env.joomlaPackageType }} -SL {{ env.joomlaPackage }}; \
	echo "$JOOMLA_SHA512 *joomla.{{ env.joomlaPackageType }}" | sha512sum -c -; \
	mkdir /usr/src/joomla; \
{{ if env.joomlaPackageType == "tar.zst" then ( -}}
	tar --zstd -xf joomla.tar.zst -C /usr/src/joomla; \
{{ ) else ( -}}
	tar -xf joomla.tar.bz2 -C /usr/src/joomla; \
{{ ) end -}}
	rm joomla.{{ env.joomlaPackageType }}; \
	chown -R www-data:www-data /usr/src/joomla

# Copy init scripts
COPY docker-entrypoint.sh /entrypoint.sh
COPY makedb.php /makedb.php

ENTRYPOINT ["/entrypoint.sh"]
{{ if env.variant == "apache" then ( -}}
CMD ["apache2-foreground"]
{{ ) else ( }}
CMD ["php-fpm"]
{{ ) end -}}