I am trying to perform this bash command via Ansible on a remote host, leveraging Ansible modules:
docker pull example.com/some/path/to/image:sometag

Note, if I perform the above command on the device, it runs fine.

I know I can use shell and call it a day, but tend to shy away from abstracting what is happening from Ansible.

I figured this was a common use-case, but all attempts to do something I thought would be fairly straight forward has only resulted in errors.

Some examples of what I have tried:

- name: Pull down file_ingest_agent
  community.docker.docker_image_pull:
    name: example.com/some/path/to/image:{{ file_ingest_agent }}
    platform: amd64

This results in an error stating:

fatal: []: FAILED! => {“ansible_facts”: {“discovered_interpreter_python”: “/usr/bin/python3.8”}, “changed”: false, “msg”: “Error pulling image example.com/some/path/to/image:sometag – 500 Server Error for http+docker://localhost/v1.41/images/create?tag=sometag&fromImage=example.com%2Fsome%2Fpath%2Fto%2Fimage&platform=amd64: Internal Server Error (“unknown: repository some/path/to/image not found”)”}

It seems like it a 500 from localhost? Also, it seems to cut off the URL of the repository, stating that repository some/path/to/image not found.

Also tried:

- name: run container
  docker_image:
    repository: example.com/some/path/to/image:{{ file_ingest_agent }}
    name: image:{{ file_ingest_agent }}
    source: pull

This results in an error stating:

fatal: []: FAILED! => {“ansible_facts”: {“discovered_interpreter_python”: “/usr/bin/python3.8”}, “changed”: false, “msg”: “Error pulling image image:sometag – 500 Server Error for http+docker://localhost/v1.41/images/create?tag=sometag&fromImage=image: Internal Server Error (“Get https://registry-1.docker.io/v2/: net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers)”)”}

This seems to indicate it completely ignores the repository value and attempt to pull from http+docker://localhost/v1.41/images/create?tag=sometag&fromImage=image

I have tried a few variations of each of these, all with similar error results.

I would expect that the docker image from the private repo would be pulled down by the remote host the Ansible script is executing on.