Image cannot be pulled from gitlab registry using gitlab-ci.yml even with docker auth config variable. Pulling manually works

Summary

Using self-hosted Gitlab CE registry does not work when referencing images in a .gitlab-ci.yml (ERROR: Preparation failed: no such image). Pulling the image manually works. After pulling the image manually, it is found from the .gitlab-ci.yml

Steps to reproduce

1. Follow the guides about enabling Gitlab Docker Registry
2. Set up the Secret variable with the DOCKER_AUTH_CONFIG secret variable
3. Have the image on the gitlab registry (check that pulling it works)
4. Use the image in a .gitlab-ci.yml

Actual behavior

ERROR: Preparation failed: no such image

Expected behavior

The image is pulled.

Relevant logs and/or screenshots

• Docker auth config variable: https://puu.sh/uLp3C/4917939da7.png
• Image in registry: https://puu.sh/uLpm8/547d3eff95.png (link points to $GITLAB_URL:4567/$GROUP/deploy:latest)
• Build failing:

Running with gitlab-ci-multi-runner 1.11.1 (a67a225)
  on dev (9d565b47)
Using Docker executor with image $GIT_URL:4567/$GROUP/deploy:latest ...
ERROR: Preparation failed: no such image

Environment description

Content of config.toml

concurrent = 8
check_interval = 0

[[runners]]
  name = "dev"
  url = "$CI_URL"
  token = "$TOKEN"
  executor = "docker"
  [runners.docker]
    tls_verify = false
    image = "$DEFAULT_IMAGE"
    privileged = false
    disable_cache = false
    volumes = ["/cache"]
    pull_policy = "never"
  [runners.cache]


[[runners]]
  name = "Docker builder"
  url = "$CI_URL"
  token = "$TOKEN"
  executor = "docker"
  [runners.docker]
    tls_verify = false
    image = "docker:latest"
    privileged = true
    disable_cache = false
    volumes = ["/cache"]
  [runners.cache]

Used GitLab Runner version

Running with gitlab-ci-multi-runner 1.11.1 (a67a225)