RUN pecl install redis \
&& docker-php-ext-enable redis
---------------------------------------------------
RUN pecl install -o -f redis \
&& rm -rf /tmp/pear \
&& docker-php-ext-enable redis
pecl不好用的時候
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
