How to install extension for php via docker-php-ext-install?

Question

In order to resolve an issue, I am now trying install the mysql pdo via

docker-php-ext-install

as pointed out in the README of the php imag

Answer 1

I had the same problem a while ago. I started a container and typed the ext-install command into this container. Once I found all the dependencies, I wrote them into the Dockerfile.

Example:

RUN apt-get update && apt-get install -y \
libmcrypt-dev \
&& docker-php-ext-install -j$(nproc) mcrypt

There is a dependency that libmcrypt-dev needed before you can run docker-php-ext-install mcrypt

I've checked my older Dockerfiles and found something which might help you

FROM php:5.6-apache

RUN apt-get update && apt-get install -y \
        libfreetype6-dev \
        libjpeg62-turbo-dev \
        libmcrypt-dev \
        libpng12-dev \
    libicu-dev \
     libxml2-dev \
    vim \
        wget \
        unzip \
        git \
    && docker-php-ext-install -j$(nproc) iconv intl xml soap mcrypt opcache pdo pdo_mysql mysqli mbstring \
    && docker-php-ext-configure gd --with-freetype-dir=/usr/include/ --with-jpeg-dir=/usr/include/ \
    && docker-php-ext-install -j$(nproc) gd

RUN a2enmod rewrite && mkdir /composer-setup && wget https://getcomposer.org/installer -P /composer-setup && php /composer-setup/installer --install-dir=/usr/bin && rm -Rf /composer-setup && curl -LsS https://symfony.com/installer -o /usr/local/bin/symfony && chmod a+x /usr/local/bin/symfony
# Create symlink for default conf
RUN ln -s /etc/apache2/sites-available/000-default.conf /etc/apache2/sites-enabled/000-default.conf && mkdir /composer-setup && wget https://getcomposer.org/installer -P /composer-setup && php /composer-setup/installer --install-dir=/usr/bin && rm -Rf /composer-setup && curl -LsS https://symfony.com/installer -o /usr/local/bin/symfony && chmod a+x /usr/local/bin/symfony