suppport of AWS ECR registry

[tbugfinder]

udocker should support authentication to AWS ECR registries for pulling containers of it. Ideally boto3 is included and .aws/config files supported.

[adokter]

@jorge-lip @mariojmdavid any chance AWS ECR support will be added to udocker in the near future? Docker Hub has started to implement pull limits that are easily met by my application, which has forced me to stop using udocker unfortunately for now (see also https://github.com/grycap/scar/issues/350)

[tbugfinder]

I moved on with singularity and use of the ecr credential helper.

[deveshbajaj59]

I am also facing the same issue, to authenticate the AWS ecr repository.

[jorge-lip]

The branch devel3 has fixes that address the ECR usage like:

aws ecr get-login-password --region eu-north-1 | udocker login --username=AWS --password-stdin --registry=000000000000.dkr.ecr.eu-north-1.amazonaws.com
udocker pull 000000000000.dkr.ecr.eu-north-1.amazonaws.com/repositoryname