Currently, the de-facto standard to Dockerizing PHP applications is to use the Docker PHP official image. This is maintained by Docker itself and community members and has compiled PHP with no extensions. To install extensions, we have to do this in our Dockerfile: FROMphp:8.2-cliRUN docker-php-ext-install pdo pdo_mysql curlThe helper script docker-php-ext-install does unpack the PHP source code and installs the given extensions. For some extensions like gd, we need also libraries installed like libpng and so on.