Gitlab CI fails with composer/composer image

For some odd reason Gitlab CI cannot run the docker image "composer/composer". I posted an issue at https://github.com/RobLoach/docker-composer/issues/91 for the docker image, but it seems that there is some Gitlab CI specific handling, that leads to the errors.

.gitlab-ci.yml:

image: composer/composer:php5-alpine
stages:
  - build
  - test
  - deploy
# Jobs
satis-build:
  stage: build
  script:
    - ls

Build output

gitlab-ci-multi-runner 1.3.2 (0323456)
Using Docker executor with image composer/composer:php5-alpine ...
Pulling docker image composer/composer:php5-alpine ...
Running on runner-420782f7-project-64-concurrent-0 via build-runner-githost...
Fetching changes...
HEAD is now at 8d19828 More tests
From https://gitlab.undpaul.de/undpaul/packages
   8d19828..9141eee  master     -> origin/master
Checking out 9141eee5 as master...


  [Symfony\Component\Console\Exception\RuntimeException]  
  The "-c" option does not exist.                         


show [--all] [-i|--installed] [-p|--platform] [-a|--available] [-s|--self] [-N|--name-only] [-P|--path] [-t|--tree] [-l|--latest] [-o|--outdated] [-D|--direct] [--] [<package>] [<version>]



  [Symfony\Component\Console\Exception\RuntimeException]  
  The "-c" option does not exist.                         


show [--all] [-i|--installed] [-p|--platform] [-a|--available] [-s|--self] [-N|--name-only] [-P|--path] [-t|--tree] [-l|--latest] [-o|--outdated] [-D|--direct] [--] [<package>] [<version>]


ERROR: Build failed: exit code 1

I'm seeing the same behavior. This is the composer configuration in my build:

composer:
    stage: build
    image: composer/composer:alpine
    artifacts:
        paths:
            - vendor/
    cache:
        key: "$CI_BUILD_REF_NAME"
        paths:
            - vendor/
    script:
        - install --prefer-dist

Moved from gitlab-org/gitlab-ci#434

This is probably again problem with the entrypoint. @ayufan is there a solution for that?

+1

I believe this is related to https://gitlab.com/gitlab-org/gitlab-ci-multi-runner/issues/1421.