Reduce the size of the php/Wordpress image (aade1156) · Commits · singing-chimes.co.uk / Wordpress Docker Image

Dockerfile

+36 −20

Original line number	Diff line number	Diff line
		@@ -23,36 +23,52 @@ EXPOSE 80
		CMD ["/usr/sbin/nginx", "-g", "daemon off;"]


		## Stage PHP
		ARG php_version=
		FROM php:${php_version:+$php_version-}fpm-alpine as deps
		FROM php:${php_version:+$php_version-}fpm-alpine as php-stage
		ENV STAGE=/stage/php
		RUN --mount=type=bind,source=scripts/install-deps.sh,target=/step /step

		FROM deps as compile
		RUN --mount=type=bind,source=scripts/compile.sh,target=/step /step
		COPY --from=docker.kodo.org.uk/kodo.org.uk/docker/docker-build-helpers:1.0 \
		/scripts /bin
		RUN --mount=type=bind,source=scripts/prepare-stage.sh,target=/step /step

		FROM deps as fastcgi

		LABEL uk.org.kodo.maintainer "Dom Sekotill <dom.sekotill@kodo.org.uk>"

		## Stage Wordpress
		FROM php-stage as wordpress-stage
		ARG wp_version=latest
		WORKDIR /app
		ENV WORDPRESS_ROOT=/app

		COPY --from=compile /usr/local/etc/php /usr/local/etc/php
		COPY --from=compile /usr/local/lib/php /usr/local/lib/php
		COPY scripts/wp.sh /usr/local/bin/wp
		COPY data/composer.json /app/composer.json
		WORKDIR /stage/wordpress/app
		ENV STAGE=/stage/wordpress WORDPRESS_ROOT=/stage/wordpress/app
		COPY scripts/wp.sh /stage/wordpress/usr/bin/wp
		COPY data/composer.json composer.json
		COPY plugins wp-content/mu-plugins
		RUN --mount=type=bind,source=scripts/install-wp.sh,target=/step \
		/step ${wp_version}

		COPY plugins/* wp-content/mu-plugins/
		COPY data/fpm.conf /usr/local/etc/php-fpm.d/image.conf
		COPY data/opcache.ini /usr/local/etc/php/conf.d/opcache-recommended.ini
		COPY data/wp-config.php /usr/share/wordpress/wp-config.php
		COPY scripts/entrypoint.sh /bin/entrypoint

		# PAGER is used by the wp-cli tool, the default 'less' is not installed
		ENV PAGER=more
		## Stage configuration
		FROM wordpress-stage as config-stage
		WORKDIR /stage/config
		ENV STAGE=/stage/config
		COPY data/fpm.conf usr/local/etc/php-fpm.d/image.conf
		COPY data/opcache.ini usr/local/etc/php/conf.d/opcache-recommended.ini
		COPY data/wp-config.php usr/share/wordpress/wp-config.php
		COPY scripts/entrypoint.sh bin/entrypoint


		## Final image composed of three layers:
		## 1) PHP runtime and libs
		## 2) Wordpress
		## 3) Configuration
		FROM scratch as fastcgi
		LABEL uk.org.kodo.maintainer "Dom Sekotill <dom.sekotill@kodo.org.uk>"
		COPY --from=php-stage /stage/php /
		COPY --from=wordpress-stage /stage/wordpress /
		COPY --from=config-stage /stage/config /
		WORKDIR /app
		ENV PREFIX=/usr
		ENV WORDPRESS_ROOT=/app
		ENV PATH=/bin:/usr/bin:/usr/local/bin:/usr/local/sbin
		EXPOSE 9000
		ENTRYPOINT ["/bin/entrypoint"]
		CMD ["php-fpm"]

scripts/compile.sh

+0 −16

Original line number	Diff line number	Diff line
		#!/bin/bash
		set -eux

		# Packaged build dependencies
		BUILD_DEPS=(
		autoconf
		build-base
		gmp-dev
		imagemagick-dev
		jpeg-dev
		libpng-dev
		libwebp-dev
		libzip-dev
		)

		# Distributed extensions
		PHP_EXT=(
		bcmath
		@@ -30,10 +18,6 @@ php_version() {
		return 1
		}

		# Install packaged dependencies
		apk update
		apk add "${BUILD_DEPS[@]}"

		# Build & install distributed extensions
		if php_version -gt 7.4; then
		GD_ARGS=( --with-jpeg=/usr --with-webp=/usr )

scripts/install-deps.sh

+9 −6

Original line number	Diff line number	Diff line
		@@ -4,11 +4,14 @@ set -eux
		# Install packaged dependencies
		apk update
		apk add \
		autoconf \
		bash \
		imagemagick-libs \
		libgmpxx \
		libjpeg \
		libpng \
		libwebp \
		libzip \
		build-base \
		gmp-dev \
		imagemagick-dev \
		jpeg-dev \
		less \
		libpng-dev \
		libwebp-dev \
		libzip-dev \
		rsync \

scripts/install-wp.sh

+10 −6

Original line number	Diff line number	Diff line
		@@ -5,14 +5,18 @@ COMPOSER_INSTALLER_URL=https://getcomposer.org/installer
		WP_CLI_URL=https://raw.githubusercontent.com/wp-cli/builds/gh-pages/phar/wp-cli.phar
		WP_PASSWORD_HASH=https://raw.githubusercontent.com/Ayesh/WordPress-Password-Hash/1.5.1

		# Install Composer
		# Prepare stage
		export PREFIX=$STAGE/usr/
		export PATH+=:$PREFIX/bin
		mkdir -p $PREFIX/bin $PREFIX/lib

		# Install Composer directly to STAGE
		curl -sSL ${COMPOSER_INSTALLER_URL} \|
		php -- --install-dir=/usr/local/lib --filename=composer.phar
		ln -s ../lib/composer.phar /usr/local/bin/composer
		php -- --install-dir=$PREFIX/lib --filename=composer.phar
		ln -s ../lib/composer.phar $PREFIX/bin/composer

		# Install WP-CLI
		curl -sSL ${WP_CLI_URL} \
		>/usr/local/lib/wp-cli.phar
		# Install WP-CLI directly to STAGE
		curl -sSL ${WP_CLI_URL} >$PREFIX/lib/wp-cli.phar

		# Install Wordpress core
		wp core download --skip-content --locale=en_GB --version=$1

scripts/prepare-stage.sh

0 → 100755

+39 −0

Original line number	Diff line number	Diff line
		#!/bin/bash
		set -eux

		UTILS=(
		cat
		date
		less
		rsync
		sort
		xargs
		)

		UTILS+=(
		ls
		du
		)

		BASH_BINS=(
		/bin/bash
		/usr/lib/bash/head
		/usr/lib/bash/sleep
		/usr/lib/bash/unlink
		)

		bootstrap-stage
		stage-useradd www-data

		{
		# Shell & cmdline utils
		which "${UTILS[@]}"
		printf "%s\n" "${BASH_BINS[@]}"

		# PHP
		echo /usr/local/bin/php
		echo /usr/local/sbin/php-fpm
		find /usr/local/lib/php /usr/local/etc/php -type f
		} \| collect-binaries

		ln -s bash $STAGE/bin/sh