phplaraveldockerdockerfilembstring

configure: error: Package requirements (oniguruma) were not met


When I try to create a docker image from a dockerfile for Laravel application I get this error:

checking for oniguruma... no configure: error: Package requirements (oniguruma) were not met:

No package 'oniguruma' found

Consider adjusting the PKG_CONFIG_PATH environment variable if you
installed software in a non-standard prefix.

Alternatively, you may set the environment variables ONIG_CFLAGS
and ONIG_LIBS to avoid the need to call pkg-config.
See the pkg-config man page for more details.

The command '/bin/sh -c docker-php-ext-install pdo mbstring' returned a non-zero code: 1

Here is my Dockerfile:

FROM php:7
RUN apt-get update -y && apt-get install -y openssl zip unzip git
RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer
RUN docker-php-ext-install pdo mbstring
WORKDIR /app
COPY app /app # this copies all the app files to a folder called `app`
RUN composer install

CMD php artisan serve --host=0.0.0.0 --port=8000
EXPOSE 8000

and the docker command to build the Dockerfile

sudo docker build -t test .

Solution

  • Just remove mbstring from the docker-php-ext-install instruction.

    The error is caused by a dependency problem - the mbstring extension requires the oniguruma library to make multibyte regular expression functions work. From the installation guide:

    Oniguruma is necessary for the regular expression functions with multibyte character support. Oniguruma is bundled with mbstring. As of PHP 5.4.0, if Oniguruma is already installed on the system, --with-onig[=DIR] can be specified to use the installed library.

    However, in the image that you're using, the extension is already installed and configured, so you don't need to do anything else:

    $> docker run --rm -it php:7 php -r "var_dump(mb_ereg_match('^99.*', '123456'));"                                                                                      
    bool(false)
    
    $> docker run --rm -it php:7 php -r "var_dump(mb_ereg_match('^12.*', '123456'));"                                                                                      
    bool(true)