moby/distribution/repository.go

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package distribution
import (
"context"
"github.com/docker/distribution"
"github.com/docker/distribution/reference"
"github.com/docker/docker/errdefs"
)
// GetRepository returns a repository from the registry.
func GetRepository(ctx context.Context, ref reference.Named, config *ImagePullConfig) (repository distribution.Repository, lastError error) {
repoInfo, err := config.RegistryService.ResolveRepository(ref)
if err != nil {
return nil, errdefs.InvalidParameter(err)
}
// makes sure name is not empty or `scratch`
if err := validateRepoName(repoInfo.Name); err != nil {
return nil, errdefs.InvalidParameter(err)
}
endpoints, err := config.RegistryService.LookupPullEndpoints(reference.Domain(repoInfo.Name))
if err != nil {
return nil, err
}
for _, endpoint := range endpoints {
repository, lastError = newRepository(ctx, repoInfo, endpoint, nil, config.AuthConfig, "pull")
if lastError == nil {
break
}
}
return repository, lastError
}