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Merge pull request #4035 from milosgajdos/small-docs-cleanup

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28
docs/migration.md
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---
published: false
---
# 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.

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docs/spec/api.md
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@ -52,19 +52,6 @@ specification, details of the protocol will be left to a future specification.
Relevant header definitions and error codes are present to provide an Relevant header definitions and error codes are present to provide an
indication of what a client may encounter. indication of what a client may encounter.
#### Future
There are features that have been discussed during the process of cutting this
specification. The following is an incomplete list:
- Immutable image references
- Multiple architecture support
- Migration from v2compatibility representation
These may represent features that are either out of the scope of this
specification, the purview of another specification or have been deferred to a
future version.
### Use Cases ### Use Cases
For the most part, the use cases of the former registry API apply to the new For the most part, the use cases of the former registry API apply to the new

13
docs/spec/api.md.tmpl
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@ -52,19 +52,6 @@ specification, details of the protocol will be left to a future specification.
Relevant header definitions and error codes are present to provide an Relevant header definitions and error codes are present to provide an
indication of what a client may encounter. indication of what a client may encounter.
#### Future
There are features that have been discussed during the process of cutting this
specification. The following is an incomplete list:
- Immutable image references
- Multiple architecture support
- Migration from v2compatibility representation
These may represent features that are either out of the scope of this
specification, the purview of another specification or have been deferred to a
future version.
### Use Cases ### Use Cases
For the most part, the use cases of the former registry API apply to the new For the most part, the use cases of the former registry API apply to the new