Gitlab-runner local build - login from non TTY device

Question

I'm trying to build my project locally using gitlab-runner on Linux.

docker-build:
  stage: build
  image: docker:latest
  script:
    - docker login -u "gitlab-ci-token" -p "$CI_JOB_TOKEN" $CI_REGISTRY # user "gitlab-ci-token" is automatically created by GitLab
    - docker build -t "$CI_REGISTRY_IMAGE:$CI_COMMIT_REF_NAME" target/
    - docker push "$CI_REGISTRY_IMAGE:$CI_COMMIT_REF_NAME"

Unfortunately my attempts end with error about "docker login" not being able to perform interactive login from non-TTY device.

$ gitlab-ci-multi-runner exec docker --docker-privileged docker-build
Running with gitlab-ci-multi-runner 1.11.1 (a67a225)
  on  ()
Using Docker executor with image docker:latest ...
Starting service docker:dind ...
Pulling docker image docker:dind ...
Waiting for services to be up and running...
Pulling docker image docker:latest ...
Running on runner--project-1-concurrent-0 via vanqyard...
Cloning repository...
Cloning into '/builds/project-1'...
done.
Checking out 70187b2d as docker-basic-conf...
Skipping Git submodules setup
Checking cache for docker-build/docker-basic-conf...
Successfully extracted cache
$ docker login -u "gitlab-ci-token" -p "$CI_JOB_TOKEN" $CI_REGISTRY
Error: Cannot perform an interactive login from a non TTY device
ERROR: Job failed: exit code 1
FATAL: exit code 1 

My question is has anybody stumbled upon this issue and how to succesfunlly perform build?

Answer 1

Probably not linked to the problem here, but some people might encounter the exact same message when trying a docker login from a Linux like terminal on Windows such as Git bash or Docker quickstart terminal or even Cygwin.

The trick here is to use winpty docker login