How to install php-redis extension using the offic

Question

I want to build my PHP-FPM image with php-redis extension based on the official PHP Docker image, for example, using this Dockerfile: php:5.6-fpm.

The docs say that I can install extensions this way, installing dependencies for extensions manually:

FROM php:5.6-fpm
# Install modules (iconv, mcrypt and gd extensions)
RUN apt-get update && apt-get install -y \
        libfreetype6-dev \
        libjpeg62-turbo-dev \
        libmcrypt-dev \
        libpng12-dev \
    && docker-php-ext-install iconv mcrypt \
    && docker-php-ext-configure gd --with-freetype-dir=/usr/include/ --with-jpeg-dir=/usr/include/ \
    && docker-php-ext-install gd
CMD ["php-fpm"]

Without Docker I installed it with apt-get install php5-redis. But how can I install it using the approach above?

Answer 1

Slightly revised version of starikovs and skyred answers for current version of the docker image. Tested on php:5-fpm-alpine

# install phpredis extension
ENV PHPREDIS_VERSION 2.2.8

ADD https://github.com/phpredis/phpredis/archive/$PHPREDIS_VERSION.tar.gz /tmp/redis.tar.gz
RUN tar xzf /tmp/redis.tar.gz -C /tmp \
    && mkdir -p /usr/src/php/ext \
    && mv /tmp/phpredis-$PHPREDIS_VERSION /usr/src/php/ext/redis \
    && echo 'redis' >> /usr/src/php-available-exts \
    && docker-php-ext-install redis \
    && rm -rf /usr/src/php/ext/redis

Answer 2

Redis is not an extension that is included in “php-src”, therefore you cannot use docker-php-ext-install. Use PECL:

RUN pecl install -o -f redis \
&&  rm -rf /tmp/pear \
&&  docker-php-ext-enable redis

Answer 3

If you want to use redis as session handler;

RUN { \
    echo 'session.save_handler = redis'; \
    echo 'session.save_path = tcp://redis:6379'; \
} >> /usr/local/etc/php/conf.d/docker-php-ext-redis.ini

If you want to use redis extension with PHP 7 in 2015 (borrowed from skyred's answer);

ENV PHPREDIS_VERSION php7

RUN curl -L -o /tmp/redis.tar.gz https://github.com/phpredis/phpredis/archive/$PHPREDIS_VERSION.tar.gz \
    && tar xfz /tmp/redis.tar.gz \
    && rm -r /tmp/redis.tar.gz \
    && mv phpredis-$PHPREDIS_VERSION /usr/src/php/ext/redis \
    && docker-php-ext-install redis

Answer 4

Slightly revised version of starikovs and skyred answers for the current PHP 7 version of the docker image (tested on php:7.0.8-fpm-alpine and php:7.0.8-alpine).

Uses the newly released 3.0 version (June 2016) for PHP 7.

ENV PHPREDIS_VERSION 3.0.0

RUN mkdir -p /usr/src/php/ext/redis \
    && curl -L https://github.com/phpredis/phpredis/archive/$PHPREDIS_VERSION.tar.gz | tar xvz -C /usr/src/php/ext/redis --strip 1 \
    && echo 'redis' >> /usr/src/php-available-exts \
    && docker-php-ext-install redis

Answer 5

I've found two ways to install php-redis extension for official php-fpm Docker image. Here they are:

The first way is to compile redis from sources and install.

RUN curl -L -o /tmp/redis.tar.gz https://github.com/phpredis/phpredis/archive/2.2.7.tar.gz \
    && tar xfz /tmp/redis.tar.gz \
    && rm -r /tmp/redis.tar.gz \
    && mv phpredis-2.2.7 /usr/src/php/ext/redis \
    && docker-php-ext-install redis

docker-php-ext-install script is included in php-fpm image and can compile extensions and install them.

The second way you can do it is with PECL.

As TimWolla answered, you can do it with PECL, but in my case, PECL isn't installed by default.

RUN pecl install -o -f redis \
&&  rm -rf /tmp/pear \
&&  echo "extension=redis.so" > /usr/local/etc/php/conf.d/redis.ini

Answer 6

My opinion, the easiest way is:

RUN pecl install redis && docker-php-ext-enable redis

;)