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PHP and Composer with Docker build: failed to clone git

I am trying to create a Dockerfile to automate the installation of HumHub following the install guide: https://www.humhub.org/docs/guide-admin-installation.html

However, whenever the build script runs composer, I get the following error:

Changed current directory to /root/.composer
./composer.json has been created
Loading composer repositories with package information
Updating dependencies (including require-dev)
- Installing fxp/composer-asset-plugin (v1.1.1)
    Downloading: Connecting...    Failed to download fxp/composer-asset-plugin from dist: Could not authenticate against github.com
    Now trying to download from source
- Installing fxp/composer-asset-plugin (v1.1.1)
    Cloning daca454b94539a4e6d30937dfc6b817eceb03f28

Writing lock file
Generating autoload files
Loading composer repositories with package information
Updating dependencies (including require-dev)
Failed to clone the [email protected]:jquery/jquery-dist.git repository, try running in interactive mode so that you can enter your GitHub credentials

[RuntimeException]                                                          
Failed to execute git clone --mirror '[email protected]:jquery/jquery-dist.git' '/root/.composer/cache/vcs/git-github.com-jquery-jquery-dist.git/'

Presumably this is caused by composer using git to install jquery and expecting git to be pre-configured with git access credentials. However, it makes no sense to provide git access credentials for a Docker build script.

I have attempted to force both git and composer to use https (see How to force Composer to use https:// instead of git://?) however it does not appear to have the desired effect. Could this be caused by a bug in the composer plugin composer-asset-plugin?

Here's the build file:

FROM orukami/alpine-php:5.6

ENV WWW_ROOT /var/www
ENV PUBLIC_ROOT /var/www/public

COPY nginx /etc/nginx
COPY fpm /etc/php/fpm
COPY supervisord.conf /etc/supervisord.conf
COPY entrypoint.sh /

RUN apk add -U nginx supervisor git curl && \
    mkdir -p /var/www && mkdir -p ${WWW_ROOT} && \
    rm -rf /var/cache/apk/* && \
    chmod +x /entrypoint.sh

RUN git clone https://github.com/humhub/humhub.git /var/www/public
RUN cd /var/www/public && curl -sS https://getcomposer.org/installer | php
RUN git config --global url."https://".insteadOf "git://" && cd /var/www/public && \
    ./composer.phar config --global github-protocols https && \
    ./composer.phar global require "fxp/composer-asset-plugin:~1.1.0" && \
    ./composer.phar update

WORKDIR ${WWW_ROOT}

EXPOSE 80 443

VOLUME /var/www/public

ENTRYPOINT ["/entrypoint.sh"]

CMD ["/usr/bin/supervisord"]

This must be a very common problem, however I can't find any solutions at all online.

Solution

  • The problem was eventually traced to the composer-asset-plugin not respecting the instruction to load over https instead of git://. The solution is to copy over a file like this one: https://github.com/djcf/humhub-docker/blob/master/config.json into /root/.composer.