Docker pull hanging?

[fmalmeida]

Sometimes when pulling the main versioned docker image of the pipeline, fmalmeida/bacannot:v2.3 for example, the download may hang, for example:

docker pull fmalmeida/bacannot:v2.3

[...]

unauthorized: authentication required

When that happens, we recommend that users:

1. Log in their docker account via cli with: docker login (when possible)
2. Download the fmalmeida/bacannot:main_tools image before downloading the versioned tag.

The first connection improves the stability of your connection to dockerhub and increases the number of possible pulls. And the second first downloads the core of the versioned image. When this is done, you "split" the download in two jobs which you make each download smaller and may avoid the ending of connection with "unauthorized: authentication required".

Felipe.