distribution/docs/migration.md
Mary Anthony 832cb9d52c Updating for Hugo
Updating for tooling tests
Updating with the new sed scripts to protect links
updating with new image
Updating with comments

Signed-off-by: Mary Anthony <mary@docker.com>
2015-06-15 14:39:33 -07:00

30 lines
1.1 KiB
Markdown

<!--[metadata]>
+++
draft = "true"
+++
<![end-metadata]-->
# Migrating a 1.0 registry to 2.0
TODO: This needs to be revised in light of Olivier's work
A few thoughts here:
There was no "1.0". There was an implementation of the Registry API V1 but only a version 0.9 of the service was released.
The image formats are not compatible in any way. One must convert v1 images to v2 images using a docker client or other tool.
One can migrate images from one version to the other by pulling images from the old registry and pushing them to the v2 registry.
-----
The Docker Registry 2.0 is backward compatible with images created by the earlier specification. If you are migrating a private registry to version 2.0, you should use the following process:
1. Configure and test a 2.0 registry image in a sandbox environment.
2. Back up up your production image storage.
Your production image storage should reside on a volume or storage backend.
Make sure you have a backup of its contents.
3. Stop your existing registry service.
4. Restart your registry with your tested 2.0 image.