I met the issue while running gitlab pipleline.
docker pull the image at the host and any other environments, but the pipeline running in docker container still failed. I could not fetch the image from remote Docker repository.
Here is the detail of the error message:
Using Docker executor with image <docker-repository-url>/python:3.9.15-slim ... Pulling docker image <docker-repository-url>/python:3.9.15-slim ... WARNING: Failed to pull image with policy "always": Error response from daemon: Head "https://<docker-repository-url>/python/manifests/3.9.15-slim": denied: You may not login yet (manager.go:237:0s) ERROR: Job failed: failed to pull image "<docker-repository-url>/python:3.9.15-slim" with specified policies [always]: Error response from daemon: Head "https://<docker-repository-url>/python/manifests/3.9.15-slim": denied: You may not login yet (manager.go:237:0s)
The problem is because as Gitlab official explain:
If you use the
alwayspolicy and the registry is not available, the job fails even if the desired image is cached locally.
After reading this guidance at GitLab website, I changed
config.toml of gitlab-runner add a new line for
pull_policy as following:
[[runners]] #.... [runners.docker] pull_policy = ["if-not-present", "always"] #...