Alpine PHP FPM + composer

ARG vars

• PHP_VERSION switchable PHP version
• PHP_ROOT configure the WORKDIR
• PHP_EXTRA_EXTENSIONS allow to add extra extensions
• PHP_EXTRA_PECL_EXTENSIONS allow to add extra PECL extensions
• COMPOSER_GLOBAL_REQUIREMENTS allow to add extra global composer requirements

Bundled extensions

• gd
• imagick
• intl
• zip
• pdo_mysql
• pcntl
• opcache
• exif

Additional extensions (not available in '*-minimum' images)

• soap
• xmlrpc (Since PHP >=8 it becomes a PECL extension)

Optional PECL extensions (not available in '*-minimum' images)

• xdebug
• apcu

Composer

Globally installed with no extra packages