Docker: How to install PHP 7.4 extension ext-http?

Question

I would like to install the ext-http extension because I have this error when I execute composer install command in my php-apache container:

The requested PHP extension ext-http * is missing from your system. Install or enable PHP's http extension.

My Dockerfile:

ARG PHP_VERSION=""

FROM php:${PHP_VERSION}-apache

ENV COMPOSER_ALLOW_SUPERUSER=1

EXPOSE 80
WORKDIR /${PROJECT_DIRECTORY}

# git, unzip & zip are for composer
RUN apt-get update -qq && \
    apt-get install -qy \
    git \
    gnupg \
    libfreetype6-dev \
    libjpeg62-turbo-dev \
    libmcrypt-dev \
    libicu-dev \
    libxml2-dev \
    wget \
    nano \
    unzip \
    zip && \
    curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer && \
    apt-get clean && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*

# PHP Extensions
RUN docker-php-ext-install -j$(nproc) opcache pdo_mysql intl xml soap
ADD php/php.ini /usr/local/etc/php/conf.d/${PROJECT_DIRECTORY}.ini

# Apache
RUN a2enmod rewrite remoteip
ADD vhosts/vhost.conf /etc/apache2/sites-available/000-default.conf

I have "ext-http": "*" in require node of my composer.json.

I tried:

RUN docker-php-ext-install -j$(nproc) opcache pdo_mysql intl xml soap ext-http

And I have this error:

Step 7/10 : RUN docker-php-ext-install -j$(nproc) opcache pdo_mysql intl xml soap ext-http ---> Running in 8ef2c127b632 error: /usr/src/php/ext/ext-http does not exist

usage: /usr/local/bin/docker-php-ext-install [-jN] ext-name [ext-name ...] ie: /usr/local/bin/docker-php-ext-install gd mysqli /usr/local/bin/docker-php-ext-install pdo pdo_mysql /usr/local/bin/docker-php-ext-install -j5 gd mbstring mysqli pdo pdo_mysql shmop

if custom ./configure arguments are necessary, see docker-php-ext-configure

Possible values for ext-name: bcmath bz2 calendar ctype curl dba dom enchant exif ffi fileinfo filter ftp gd gettext gmp hash iconv imap intl json ldap mbstring mysqli oci8 odbc opcache pcntl pdo pdo_dblib pdo_firebird pdo_mysql pdo_oci pdo_odbc pdo_pgsql pdo_sqlite pgsql phar posix pspell readline reflection session shmop simplexml snmp soap sockets sodium spl standard sysvmsg sysvsem sysvshm tidy tokenizer xml xmlreader xmlrpc xmlwriter xsl zend_test zip

Some of the above modules are already compiled into PHP; please check the output of "php -i" to see which modules are already loaded. ERROR: Service 'apache' failed to build: The command '/bin/sh -c docker-php-ext-install -j$(nproc) opcache pdo_mysql intl xml soap ext-http' returned a non-zero code: 1 Failed to deploy 'Compose: .docker': docker-compose process finished with exit code 1

How can I install this extension please?

Answer 1

I published a script that lets you install the http PHP extension (and many others) with just these lines:

ADD https://github.com/mlocati/docker-php-extension-installer/releases/latest/download/install-php-extensions /usr/local/bin/

RUN chmod +x /usr/local/bin/install-php-extensions && sync && \
    install-php-extensions http

the script takes care of the PHP version, and installs all the required APT (for Debian) or APK (for Alpine) packages.

More details here: https://github.com/mlocati/docker-php-extension-installer