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<?php
// The latest stable version of PHP that is supported in WordPress trunk.
$latest = '8.3';
/*
* The PIE (PHP Installer for Extensions) binary-only image used to install extensions on PHP 8.1+.
*
* PIE is bind-mounted during the build, so it is not shipped in the final image.
*
* @see https://github.com/php/pie
*/
$pie_image = 'ghcr.io/php/pie:1.5.5-bin@sha256:3fca03c16df842d02b654dc382db3756058d9c128064f57cace14f8728779ce9';
/**
* An array of all PHP versions that we need to generate images for, and their config settings.
*
* Each PHP version has settings for the PHP base image, and the WP_CLI image.
*
* The minimum version of PHP required as of WordPress 6.6 is 7.2.24+.
*
* @see https://make.wordpress.org/core/handbook/references/php-compatibility-and-wordpress-versions/
*
* @param array $php {
* @type string $base_name The name of the Docker image to base our image off of.
* @type array $apt An array of apt packages that need to be installed.
* @type array $extensions An array of PHP extensions that need to be enabled.
* @type array $pecl_extensions An array of PECL-sourced PHP extensions that will be installed, but not enabled.
* Only used for PHP < 8.1, where PIE cannot run.
* @type array $pie_extensions An array of PIE packages (`vendor/package:constraint`) that will be installed, but not
* enabled. Imagick is the exception, and is enabled.
* }
*
* @param array|false $cli {
* @type string $mysql_client The name of the MySQL client Ubuntu package on this image.
* @type string $download_url The download URL for the version of WP-CLI to install on this image.
* }
*/
$php_versions = array(
'7.4' => array(
'php' => array(
'base_name' => 'php:7.4-fpm',
'apt' => array( 'libjpeg-dev', 'libpng-dev', 'libwebp-dev', 'libzip-dev', 'libmemcached-dev', 'unzip', 'libmagickwand-dev', 'ghostscript', 'libonig-dev', 'locales', 'sudo', 'rsync', 'libxslt-dev' ),
'extensions' => array( 'gd', 'opcache', 'mysqli', 'zip', 'exif', 'intl', 'mbstring', 'xml', 'xsl' ),
'pecl_extensions' => array( 'imagick', 'xdebug-3.1.6', 'pcov-1.0.12', 'memcached-3.3.0' ),
'composer' => true,
),
'cli' => array(
'mysql_client' => 'virtual-mysql-client',
'download_url' => 'https://raw.githubusercontent.com/wp-cli/builds/gh-pages/phar/wp-cli.phar',
),
),
'8.0' => array(
'php' => array(
'base_name' => 'php:8.0-fpm',
'apt' => array( 'libjpeg-dev', 'libpng-dev', 'libwebp-dev', 'libzip-dev', 'libmemcached-dev', 'unzip', 'libmagickwand-dev', 'ghostscript', 'libonig-dev', 'locales', 'sudo', 'rsync', 'libxslt-dev' ),
'extensions' => array( 'gd', 'opcache', 'mysqli', 'zip', 'exif', 'intl', 'mbstring', 'xml', 'xsl' ),
'pecl_extensions' => array( 'imagick', 'memcached-3.4.0', 'pcov-1.0.12', 'xdebug-3.5.3' ),
'composer' => true,
),
'cli' => array(
'mysql_client' => 'virtual-mysql-client',
'download_url' => 'https://raw.githubusercontent.com/wp-cli/builds/gh-pages/phar/wp-cli.phar',
),
),
'8.1' => array(
'php' => array(
'base_name' => 'php:8.1-fpm',
'apt' => array( 'libjpeg-dev', 'libpng-dev', 'libwebp-dev', 'libzip-dev', 'libmemcached-dev', 'unzip', 'libmagickwand-dev', 'ghostscript', 'libonig-dev', 'locales', 'sudo', 'rsync', 'libtool', 'libxslt-dev' ),
'extensions' => array( 'gd', 'opcache', 'mysqli', 'zip', 'exif', 'intl', 'mbstring', 'xml', 'xsl' ),
'pie_extensions' => array( 'imagick/imagick:3.8.1', 'php-memcached/php-memcached:3.4.0', 'pecl/pcov:1.0.12', 'xdebug/xdebug:3.5.3' ),
'composer' => true,
),
'cli' => array(
'mysql_client' => 'virtual-mysql-client',
'download_url' => 'https://raw.githubusercontent.com/wp-cli/builds/gh-pages/phar/wp-cli.phar',
),
),
'8.2' => array(
'php' => array(
'base_name' => 'php:8.2-fpm',
'apt' => array( 'libjpeg-dev', 'libpng-dev', 'libwebp-dev', 'libzip-dev', 'libmemcached-dev', 'unzip', 'libmagickwand-dev', 'ghostscript', 'libonig-dev', 'locales', 'sudo', 'rsync', 'libtool', 'libxslt-dev' ),
'extensions' => array( 'gd', 'opcache', 'mysqli', 'zip', 'exif', 'intl', 'mbstring', 'xml', 'xsl' ),
'pie_extensions' => array( 'imagick/imagick:3.8.1', 'php-memcached/php-memcached:3.4.0', 'pecl/pcov:1.0.12', 'xdebug/xdebug:3.5.3' ),
'composer' => true,
),
'cli' => array(
'mysql_client' => 'virtual-mysql-client',
'download_url' => 'https://raw.githubusercontent.com/wp-cli/builds/gh-pages/phar/wp-cli.phar',
),
),
'8.3' => array(
'php' => array(
'base_name' => 'php:8.3-fpm',
'apt' => array( 'libjpeg-dev', 'libpng-dev', 'libwebp-dev', 'libavif-dev', 'libaom-dev', 'libheif-dev', 'libzip-dev', 'libssl-dev', 'libmemcached-dev', 'unzip', 'libmagickwand-dev', 'ghostscript', 'libonig-dev', 'locales', 'sudo', 'rsync', 'libtool', 'libxslt-dev' ),
'extensions' => array( 'gd', 'opcache', 'mysqli', 'zip', 'exif', 'intl', 'mbstring', 'xml', 'xsl' ),
'pie_extensions' => array( 'imagick/imagick:3.8.1', 'php-memcached/php-memcached:3.4.0', 'pecl/pcov:1.0.12', 'xdebug/xdebug:3.5.3' ),
'composer' => true,
),
'cli' => array(
'mysql_client' => 'virtual-mysql-client',
'download_url' => 'https://raw.githubusercontent.com/wp-cli/builds/gh-pages/phar/wp-cli.phar',
),
),
'8.4' => array(
'php' => array(
'base_name' => 'php:8.4-fpm',
'apt' => array( 'libjpeg-dev', 'libpng-dev', 'libwebp-dev', 'libavif-dev', 'libaom-dev', 'libdav1d-dev', 'libheif-dev', 'libzip-dev', 'libssl-dev', 'libmemcached-dev', 'unzip', 'libmagickwand-dev', 'ghostscript', 'libonig-dev', 'locales', 'sudo', 'rsync', 'libtool', 'libxslt-dev' ),
'extensions' => array( 'gd', 'opcache', 'mysqli', 'zip', 'exif', 'intl', 'mbstring', 'xml', 'xsl' ),
'pie_extensions' => array( 'imagick/imagick:3.8.1', 'php-memcached/php-memcached:3.4.0', 'pecl/pcov:1.0.12', 'xdebug/xdebug:3.5.3' ),
'composer' => true,
),
'cli' => array(
'mysql_client' => 'virtual-mysql-client',
'download_url' => 'https://raw.githubusercontent.com/wp-cli/builds/gh-pages/phar/wp-cli.phar',
),
),
'8.5' => array(
'php' => array(
'base_name' => 'php:8.5-fpm',
'apt' => array( 'libjpeg-dev', 'libpng-dev', 'libwebp-dev', 'libavif-dev', 'libaom-dev', 'libdav1d-dev', 'libheif-dev', 'libzip-dev', 'libssl-dev', 'libmemcached-dev', 'unzip', 'libmagickwand-dev', 'ghostscript', 'libonig-dev', 'locales', 'sudo', 'rsync', 'libtool' ),
'extensions' => array( 'gd', 'mysqli', 'zip', 'exif', 'intl', 'mbstring' ),
'pie_extensions' => array( 'imagick/imagick:3.8.1', 'php-memcached/php-memcached:3.4.0', 'pecl/pcov:1.0.12', 'xdebug/xdebug:3.5.3' ),
'composer' => true,
),
'cli' => array(
'mysql_client' => 'virtual-mysql-client',
'download_url' => 'https://raw.githubusercontent.com/wp-cli/builds/gh-pages/phar/wp-cli.phar',
),
),
'8.6' => array(
'php' => array(
'base_name' => 'php:8.6-rc-fpm',
'apt' => array( 'libjpeg-dev', 'libpng-dev', 'libwebp-dev', 'libavif-dev', 'libaom-dev', 'libdav1d-dev', 'libheif-dev', 'libzip-dev', 'libssl-dev', 'libmemcached-dev', 'unzip', 'libmagickwand-dev', 'ghostscript', 'libonig-dev', 'locales', 'sudo', 'rsync' ),
'extensions' => array( 'gd', 'mysqli', 'zip', 'exif', 'intl', 'mbstring' ),
'pecl_extensions' => array(),
'composer' => true,
),
'cli' => array(
'mysql_client' => 'virtual-mysql-client',
'download_url' => 'https://raw.githubusercontent.com/wp-cli/builds/gh-pages/phar/wp-cli.phar',
),
),
);
// A warning that will be added to each Dockerfile, to ensure folks don't edit them directly.
$generated_warning = <<<EOT
##########################################################################
#
# WARNING: This file was generated by update.php.
#
# You can find the relevant template in the `/templates` folder.
#
EOT;
// Load the templates.
$templates = array(
'php' => file_get_contents( 'templates/Dockerfile-php.template' ),
'cli' => file_get_contents( 'templates/Dockerfile-cli.template' ),
);
// Loop through each PHP version, and generate the Dockerfiles.
foreach ( $php_versions as $version => $images ) {
$title = "| PHP $version |";
echo str_repeat( '-', strlen( $title ) ) . "\n";
echo "$title\n";
echo str_repeat( '-', strlen( $title ) ) . "\n";
foreach ( $images as $image => $config ) {
echo str_pad( $image, 15, '.' );
echo shell_exec( "mkdir -p images/{$version}/{$image}" );
$dockerfile = $templates[ $image ];
$dockerfile = str_replace( '%%GENERATED_WARNING%%', $generated_warning, $dockerfile );
// WP-CLI image parent tags vary depending on whether it's a PHP version, or "latest".
if ( 'latest' === $version ) {
$version_tag = 'latest';
} else {
$version_tag = "$version-fpm";
}
$dockerfile = str_replace( '%%VERSION_TAG%%', $version_tag, $dockerfile );
if ( $image === 'php' ) {
// Temporarily enforce using an image that is correctly installing `libmemcached-dev`.
$current_base_name = $config['base_name'];
if ( in_array( $config['base_name'], array( 'php:8.1-fpm', 'php:8.2-fpm' ) ) ) {
$current_base_name = str_replace( '-fpm', '-fpm-bullseye', $current_base_name );
}
// Replace tags inside the PHP Dockerfile template.
$dockerfile = str_replace( '%%BASE_NAME%%', $current_base_name, $dockerfile );
$config['pecl_extensions'] = isset( $config['pecl_extensions'] ) ? $config['pecl_extensions'] : array();
$config['pie_extensions'] = isset( $config['pie_extensions'] ) ? $config['pie_extensions'] : array();
if ( $config['apt'] || $config['extensions'] || $config['pecl_extensions'] || $config['pie_extensions'] || $config['composer'] ) {
$install_extensions = "# install the required PHP extensions\nRUN ";
// Make PIE available for this RUN instruction only, without adding it to the image.
if ( $config['pie_extensions'] ) {
$install_extensions .= "--mount=type=bind,from={$pie_image},source=/pie,target=/usr/local/bin/pie \\\n\t";
}
$install_extensions .= "set -ex;";
// Composer requires git to be installed in some circumstances (e.g. `composer install --prefer-source`).
if ( $config['composer'] ) {
$config['apt'][] = 'git';
}
if ( $config['apt'] ) {
$install_extensions .= " \\\n\t\\\n\t";
// Debian 9/stretch was moved to archive.debian.org in March 2023. See https://lists.debian.org/debian-devel-announce/2023/03/msg00006.html.
if ( $version == '7.0' ) {
$install_extensions .= "echo 'deb http://archive.debian.org/debian stretch main contrib non-free' | tee /etc/apt/sources.list; \\\n\t\\\n\t";
}
// Debian 10/buster was moved to archive.debian.org in March 2024. See https://lists.debian.org/debian-devel-announce/2024/03/msg00003.html.
if ( $version == '7.2' ) {
$install_extensions .= "sed -i 's|http://deb.debian.org/debian|http://archive.debian.org/debian|g' /etc/apt/sources.list; \\\n\t";
$install_extensions .= "sed -i 's|http://security.debian.org/debian-security|http://archive.debian.org/debian-security|g' /etc/apt/sources.list; \\\n\t";
$install_extensions .= "sed -i '/buster-updates/d' /etc/apt/sources.list; \\\n\t\\\n\t";
}
/*
* Debian 11/bullseye reached end of life on August 31, 2026, and was moved to archive.debian.org. See https://www.debian.org/News/2026/20260831.
* PHP 7.4 and 8.0 base images are built on bullseye, and the 8.1 and 8.2 images are pinned to it above.
*/
if ( in_array( $version, array( '7.4', '8.0', '8.1', '8.2' ), true ) ) {
/*
* Both the main and security suites must be repointed to the archive. Security fixes published after the final point release
* only exist in bullseye-security, and newer base images (8.1, 8.2) already have those versions installed, so the matching
* -dev packages cannot be installed without it. This replaces both deb.debian.org/debian and deb.debian.org/debian-security.
*/
$install_extensions .= "sed -i 's|http://deb.debian.org/debian|http://archive.debian.org/debian|g' /etc/apt/sources.list; \\\n\t";
$install_extensions .= "sed -i '/bullseye-updates/d' /etc/apt/sources.list; \\\n\t\\\n\t";
}
$install_extensions .= "apt-get update; \\\n\t\\\n\tapt-get install -y --no-install-recommends " . implode( ' ', $config['apt'] ) . ";";
// Ensure certificates are updated.
$install_extensions .= " \\\n\tapt-get upgrade openssl -y;";
$install_extensions .= " \\\n\tupdate-ca-certificates --fresh;";
// We need to add some locales for testing.
if ( array_search( 'locales', $config['apt'], true ) ) {
$install_extensions .= " \\\n\tsed -i 's/^# *\(\(ru_RU\|fr_FR\|de_DE\|es_ES\|ja_JP\).UTF-8\)/\\1/' /etc/locale.gen;";
$install_extensions .= " \\\n\tlocale-gen;";
}
}
if ( in_array( 'gd', $config['extensions'], true ) ) {
$install_extensions .= " \\\n\t\\\n\t";
$gd_options = array();
if ( version_compare( $version, '7.4' ) >= 0 ) {
$gd_options = array_merge(
array(
'--with-jpeg=/usr',
'--with-webp=/usr',
),
$gd_options
);
} else {
$gd_options = array_merge(
array(
'--with-gd',
'--with-jpeg-dir=/usr',
'-with-png-dir=/usr',
'--with-webp-dir=/usr',
),
$gd_options
);
}
if ( version_compare( $version, '8.3' ) >= 0 ) {
$gd_options[] = '--with-avif=/usr';
}
$install_extensions .= 'docker-php-ext-configure gd ' . implode( ' ', $gd_options ) . ';';
}
if ( $config['extensions'] ) {
$install_extensions .= " \\\n\t\\\n\t";
$install_extensions .= "docker-php-ext-install " . implode( ' ', $config['extensions'] ) . ";";
}
if ( $config['pecl_extensions'] ) {
$install_extensions .= " \\\n\t\\\n";
$install_extensions .= array_reduce( $config['pecl_extensions'], function ( $command, $extension ) use ( $version ) {
if ( $command ) {
$command .= " \\\n";
}
$command .= "\tpecl install $extension;";
if ( 0 === strpos( $extension, 'imagick' ) ) {
$command .= " \\\n\tdocker-php-ext-enable imagick;";
}
return $command;
}, '' );
}
/*
* Extensions installed with PIE, the replacement for PECL. PECL is not bundled with PHP 8.6+ images.
*
* PIE enables extensions by default. To match the previous PECL behavior, extensions are only installed, and are
* enabled at runtime by the entrypoint script. Imagick is the exception, and is always enabled.
*/
if ( $config['pie_extensions'] ) {
$install_extensions .= " \\\n\t\\\n\tpie --version;";
foreach ( $config['pie_extensions'] as $extension ) {
$install_extensions .= " \\\n\tpie install --no-cache";
if ( 0 !== strpos( $extension, 'imagick/' ) ) {
$install_extensions .= ' --skip-enable-extension';
}
$install_extensions .= " $extension;";
}
}
if ( $config['composer'] ) {
$install_extensions .= " \\\n\t\\\n";
$install_extensions .= "\tcurl --silent --fail --location --retry 3 --output /tmp/installer.php --url https://getcomposer.org/installer; \\\n";
$install_extensions .= "\tcurl --silent --fail --location --retry 3 --output /tmp/installer.sig --url https://composer.github.io/installer.sig; \\\n";
$install_extensions .= "\tphp -r \" \\\n";
$install_extensions .= "\t\t\\\$signature = file_get_contents( '/tmp/installer.sig' ); \\\n";
$install_extensions .= "\t\t\\\$hash = hash( 'sha384', file_get_contents('/tmp/installer.php') ); \\\n";
$install_extensions .= "\t\tif ( \\\$signature !== \\\$hash ) { \\\n";
$install_extensions .= "\t\t\tunlink( '/tmp/installer.php' ); \\\n";
$install_extensions .= "\t\t\tunlink( '/tmp/installer.sig' ); \\\n";
$install_extensions .= "\t\t\techo 'Integrity check failed, installer is either corrupt or worse.' . PHP_EOL; \\\n";
$install_extensions .= "\t\t\texit( 1 ); \\\n";
$install_extensions .= "\t\t}\"; \\\n";
$install_extensions .= "\tphp /tmp/installer.php --no-ansi --install-dir=/usr/bin --filename=composer; \\\n";
$install_extensions .= "\tcomposer --ansi --version --no-interaction; \\\n";
$install_extensions .= "\trm -f /tmp/installer.php /tmp/installer.sig;";
}
$dockerfile = str_replace( '%%INSTALL_EXTENSIONS%%', $install_extensions, $dockerfile );
}
copy( "entrypoint/common.sh", "images/{$version}/{$image}/common.sh" );
} elseif ( $image === 'cli' ) {
// Replace tags inside the WP-CLI Dockerfile template.
if ( $config ) {
$dockerfile = preg_replace( '|\n%%OLD_PHP%%.*%%/OLD_PHP%%\n|s', '', $dockerfile );
$dockerfile = str_replace( '%%MYSQL_CLIENT%%', $config['mysql_client'], $dockerfile );
$dockerfile = str_replace( '%%DOWNLOAD_URL%%', $config['download_url'], $dockerfile );
// Copy the configuration file that disables SSL for the MySQL client.
if ( version_compare( $version, '8.1' ) >= 0 && file_exists( "config/no-ssl.cnf" ) ) {
copy( "config/no-ssl.cnf", "images/{$version}/{$image}/no-ssl.cnf" );
$dockerfile = preg_replace( '|\n%%DISABLE_SSL%%\n|s', "\nCOPY no-ssl.cnf /etc/mysql/conf.d/no-ssl.cnf\n\n", $dockerfile );
}
} else {
// WP-CLI isn't available for this version of PHP.
$dockerfile = preg_replace( '|\n%%NEW_PHP%%.*%%/NEW_PHP%%\n|s', '', $dockerfile );
$dockerfile = preg_replace( '|\n%%DISABLE_SSL%%\n|s', '', $dockerfile );
}
}
// Cleanup any leftover tags.
$dockerfile = preg_replace( '/%%[^%]+%%/', '', $dockerfile );
// Write the real Dockerfile.
write_file( "images/{$version}/{$image}/Dockerfile", $dockerfile );
// Copy the entrypoint script, if it exists.
if ( file_exists( "entrypoint/entrypoint-$image.sh" ) ) {
copy( "entrypoint/entrypoint-$image.sh", "images/{$version}/{$image}/entrypoint.sh" );
}
// Copy the PHP-FPM configuration, if it exists.
if ( file_exists( "config/php-fpm-$image.conf" ) ) {
copy( "config/php-fpm-$image.conf", "images/{$version}/{$image}/php-fpm.conf" );
}
echo "✅\n";
}
$workflow_templates = array(
'docker-hub.yml' => 'GITHUB',
'github-container-registry.yml' => 'DOCKER_HUB',
);
// Load the GitHub Actions template.
$workflow_template = file_get_contents( 'templates/workflow.yml-template' );
$workflow_template = str_replace( '%%GENERATED_WARNING%%', $generated_warning, $workflow_template );
$php_version_list = "'" . implode( "', '", array_keys( $php_versions ) ) . "'";
$workflow_template = str_replace( '%%PHP_VERSION_LIST%%', $php_version_list, $workflow_template );
$workflow_template = str_replace( '%%PHP_LATEST%%', $latest, $workflow_template );
foreach ( $workflow_templates as $name => $remove_pattern ) {
// Save two GitHub Action workflows.
$workflow_contents = preg_replace( "/%%$remove_pattern%%[\s\S]+?%%\/$remove_pattern%%/", '', $workflow_template );
$workflow_contents = preg_replace( '/%%[^%]+%%/', '', $workflow_contents );
write_file( '.github/workflows/' . $name, $workflow_contents );
}
}
/**
* Write file.
*
* @param string $file File path.
* @param string $contents File contents.
*/
function write_file( $file, $contents ) {
$fh = fopen( $file, 'w' );
fwrite( $fh, $contents );
fclose( $fh );
}