Dockerfile.template

{{
	def is_alpine:
		env.variant | index("alpine")
-}}
FROM php:{{ env.phpVersion }}-{{ env.variant }}

{{ if env.version != "cli" then ( -}}
# persistent dependencies
{{ 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, see: https://github.com/docker-library/wordpress/pull/497
		imagemagick \
	;
{{ ) else ( -}}
RUN set -eux; \
	apt-get update; \
	apt-get install -y --no-install-recommends \
# Ghostscript is required for rendering PDF previews
		ghostscript \
	; \
	rm -rf /var/lib/apt/lists/*
{{ ) end -}}
{{ ) else ( -}}
# install wp-cli dependencies
RUN apk add --no-cache \
# bash is needed for 'wp shell': https://github.com/wp-cli/shell-command/blob/b8dafcc2a2eba5732fdee70be077675a302848e9/src/WP_CLI/REPL.php#L104
		bash \
		less \
		mysql-client

RUN set -ex; \
	mkdir -p /var/www/html; \
	chown -R www-data:www-data /var/www/html
WORKDIR /var/www/html
{{ ) end -}}

# install the PHP extensions we need (https://make.wordpress.org/hosting/handbook/handbook/server-environment/#php-extensions)
RUN set -ex; \
	\
{{ if is_alpine then ( -}}
	apk add --no-cache --virtual .build-deps \
		$PHPIZE_DEPS \
		freetype-dev \
		icu-dev \
		imagemagick-dev \
		libjpeg-turbo-dev \
		libpng-dev \
		libwebp-dev \
		libzip-dev \
	; \
{{ ) else ( -}}
	savedAptMark="$(apt-mark showmanual)"; \
	\
	apt-get update; \
	apt-get install -y --no-install-recommends \
		libfreetype6-dev \
		libicu-dev \
		libjpeg-dev \
		libmagickwand-dev \
		libpng-dev \
		libwebp-dev \
		libzip-dev \
	; \
{{ ) end -}}
	\
	docker-php-ext-configure gd \
		--with-freetype \
		--with-jpeg \
		--with-webp \
	; \
	docker-php-ext-install -j "$(nproc)" \
		bcmath \
		exif \
		gd \
		intl \
		mysqli \
		zip \
	; \
{{ if is_alpine then ( -}}
# WARNING: imagick is likely not supported on Alpine: https://github.com/Imagick/imagick/issues/328
{{ ) else "" end -}}
# https://pecl.php.net/package/imagick
{{ if true then ( -}}
# https://github.com/Imagick/imagick/commit/5ae2ecf20a1157073bad0170106ad0cf74e01cb6 (causes a lot of build failures, but strangely only intermittent ones 🤔)
# see also https://github.com/Imagick/imagick/pull/641
# this is "pecl install imagick-3.7.0", but by hand so we can apply a small hack / part of the above commit
	curl -fL -o imagick.tgz 'https://pecl.php.net/get/imagick-3.7.0.tgz'; \
	echo '5a364354109029d224bcbb2e82e15b248be9b641227f45e63425c06531792d3e *imagick.tgz' | sha256sum -c -; \
	tar --extract --directory /tmp --file imagick.tgz imagick-3.7.0; \
	grep '^//#endif$' /tmp/imagick-3.7.0/Imagick.stub.php; \
	test "$(grep -c '^//#endif$' /tmp/imagick-3.7.0/Imagick.stub.php)" = '1'; \
	sed -i -e 's!^//#endif$!#endif!' /tmp/imagick-3.7.0/Imagick.stub.php; \
	grep '^//#endif$' /tmp/imagick-3.7.0/Imagick.stub.php && exit 1 || :; \
	docker-php-ext-install /tmp/imagick-3.7.0; \
	rm -rf imagick.tgz /tmp/imagick-3.7.0; \
{{ # TODO when imagick has another release, we should ditch this whole block and just update instead -}}
{{ ) else ( -}}
	pecl install imagick-3.7.0; \
	docker-php-ext-enable imagick; \
	rm -r /tmp/pear; \
{{ ) end -}}
	\
# some misbehaving extensions end up outputting to stdout 🙈 (https://github.com/docker-library/wordpress/issues/669#issuecomment-993945967)
	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 ( -}}
	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 .wordpress-phpexts-rundeps $runDeps; \
	apk del --no-network .build-deps; \
{{ ) else ( -}}
# 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 = $(NF-1); if (index(so, "/usr/local/") == 1) { next }; gsub("^/(usr/)?", "", so); printf "*%s\n", so }' \
		| sort -u \
		| xargs -r dpkg-query --search \
		| cut -d: -f1 \
		| sort -u \
		| xargs -rt apt-mark manual; \
	\
	apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false; \
	rm -rf /var/lib/apt/lists/*; \
{{ ) end -}}
	\
	! { ldd "$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
{{ if env.version != "cli" then ( -}}
# 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
{{ ) else ( -}}
# excluding opcache due https://github.com/docker-library/wordpress/issues/407
{{ ) end -}}
# https://wordpress.org/support/article/editing-wp-config-php/#configure-error-logging
RUN { \
# https://www.php.net/manual/en/errorfunc.constants.php
# https://github.com/docker-library/wordpress/issues/420#issuecomment-517839670
		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; \
# https://github.com/docker-library/wordpress/issues/383#issuecomment-507886512
# (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 -}}

{{ if env.version != "cli" then ( -}}
RUN set -eux; \
	version={{ .upstream | @sh }}; \
	sha1={{ .sha1 | @sh }}; \
	\
	curl -o wordpress.tar.gz -fL "https://wordpress.org/wordpress-$version.tar.gz"; \
	echo "$sha1 *wordpress.tar.gz" | sha1sum -c -; \
	\
# upstream tarballs include ./wordpress/ so this gives us /usr/src/wordpress
	tar -xzf wordpress.tar.gz -C /usr/src/; \
	rm wordpress.tar.gz; \
	\
# https://wordpress.org/support/article/htaccess/
	[ ! -e /usr/src/wordpress/.htaccess ]; \
	{ \
		echo '# BEGIN WordPress'; \
		echo ''; \
		echo 'RewriteEngine On'; \
		echo 'RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]'; \
		echo 'RewriteBase /'; \
		echo 'RewriteRule ^index\.php$ - [L]'; \
		echo 'RewriteCond %{REQUEST_FILENAME} !-f'; \
		echo 'RewriteCond %{REQUEST_FILENAME} !-d'; \
		echo 'RewriteRule . /index.php [L]'; \
		echo ''; \
		echo '# END WordPress'; \
	} > /usr/src/wordpress/.htaccess; \
	\
	chown -R www-data:www-data /usr/src/wordpress; \
# pre-create wp-content (and single-level children) for folks who want to bind-mount themes, etc so permissions are pre-created properly instead of root:root
# wp-content/cache: https://github.com/docker-library/wordpress/issues/534#issuecomment-705733507
	mkdir wp-content; \
	for dir in /usr/src/wordpress/wp-content/*/ cache; do \
		dir="$(basename "${dir%/}")"; \
		mkdir "wp-content/$dir"; \
	done; \
	chown -R www-data:www-data wp-content; \
	chmod -R 1777 wp-content
{{ ) else ( -}}
# https://make.wordpress.org/cli/2018/05/31/gpg-signature-change/
# pub   rsa2048 2018-05-31 [SC]
#       63AF 7AA1 5067 C056 16FD  DD88 A3A2 E8F2 26F0 BC06
# uid           [ unknown] WP-CLI Releases <releases@wp-cli.org>
# sub   rsa2048 2018-05-31 [E]
ENV WORDPRESS_CLI_GPG_KEY 63AF7AA15067C05616FDDD88A3A2E8F226F0BC06

ENV WORDPRESS_CLI_VERSION {{ .version }}
ENV WORDPRESS_CLI_SHA512 {{ .sha512 }}

RUN set -ex; \
	\
	apk add --no-cache --virtual .fetch-deps \
		gnupg \
	; \
	\
	curl -o /usr/local/bin/wp.gpg -fL "https://github.com/wp-cli/wp-cli/releases/download/v${WORDPRESS_CLI_VERSION}/wp-cli-${WORDPRESS_CLI_VERSION}.phar.gpg"; \
	\
	GNUPGHOME="$(mktemp -d)"; export GNUPGHOME; \
	gpg --batch --keyserver keyserver.ubuntu.com --recv-keys "$WORDPRESS_CLI_GPG_KEY"; \
	gpg --batch --decrypt --output /usr/local/bin/wp /usr/local/bin/wp.gpg; \
	gpgconf --kill all; \
	rm -rf "$GNUPGHOME" /usr/local/bin/wp.gpg; unset GNUPGHOME; \
	\
	echo "$WORDPRESS_CLI_SHA512 */usr/local/bin/wp" | sha512sum -c -; \
	chmod +x /usr/local/bin/wp; \
	\
	apk del --no-network .fetch-deps; \
	\
	wp --allow-root --version
{{ ) end -}}

VOLUME /var/www/html

{{ if env.version != "cli" then ( -}}
COPY --chown=www-data:www-data wp-config-docker.php /usr/src/wordpress/
{{ ) else "" end -}}
COPY docker-entrypoint.sh /usr/local/bin/

ENTRYPOINT ["docker-entrypoint.sh"]
{{ if env.version != "cli" then ( -}}
CMD {{ [ if env.variant == "apache" then "apache2-foreground" else "php-fpm" end ] | @json }}
{{ ) else ( -}}
USER www-data
CMD ["wp", "shell"]
{{ ) end -}}