Hello,

• I know that this was already discussed in sync: AWS ECR => private registry incorrect namespace #898 and especially in Sync: Add option to keep full name on target #854.
• However, maybe I can add an usecase:
  • We currently use another program to sync images from a 8 registries to our internal one (docker.example.com).
  • To ease the use, all our internal users (and build systems) have configured docker.example.com as registry-mirrors.
  • So when they run docker run --rm -it alpine, they automatically pull this from docker.example.com/library/alpine and same goes for docker run --rm jenkins/jnlp-slave.
  • We did not find any collisions when using the "group" as path.
  • Now I would like to keep all synced images from e.g. registry.hub.docker.com in one YAML file (currently we sync 185 repositories from there).
  • Another feature which only seems to be available in the YAML file is to define images-by-tag-regex.
  • Without the option to keep the full name, I would need to split this into 185 files and commands.
• So I really would like to see something like --scoped-without-registry as outlined in Sync: Add option to keep full name on target #854.