When I use an env variable in docker-php-ext-enable It makes an error.ENV my_pecl_ext = 'apcu redis event' RUN docker-php-ext-enable ${my_pecl_ext} Step 7/8 : RUN docker-php-ext-enable ${my_pecl_ext} ---> Runnin
#!/bin/sh set -e extDir="$(php -d 'display_errors=stderr' -r 'echo ini_get("extension_dir");')" cd "$extDir" usage() { echo "usage: $0 [options] module-name [module-name ...]" echo " ie: $0 gd mysqli" echo " $0 pdo pdo_mysql" echo " $0 --ini-name 0-apc.ini...