forked from TrueCloudLab/distribution
37 lines
1.4 KiB
Go
37 lines
1.4 KiB
Go
package distribution
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import (
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"context"
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"github.com/opencontainers/go-digest"
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)
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// TagService provides access to information about tagged objects.
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type TagService interface {
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// Get retrieves the descriptor identified by the tag. Some
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// implementations may differentiate between "trusted" tags and
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// "untrusted" tags. If a tag is "untrusted", the mapping will be returned
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// as an ErrTagUntrusted error, with the target descriptor.
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Get(ctx context.Context, tag string) (Descriptor, error)
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// Tag associates the tag with the provided descriptor, updating the
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// current association, if needed.
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Tag(ctx context.Context, tag string, desc Descriptor) error
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// Untag removes the given tag association
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Untag(ctx context.Context, tag string) error
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// All returns the set of tags managed by this tag service
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All(ctx context.Context) ([]string, error)
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// Lookup returns the set of tags referencing the given digest.
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Lookup(ctx context.Context, digest Descriptor) ([]string, error)
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}
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// TagManifestsProvider provides method to retrieve the digests of manifests that a tag historically
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// pointed to
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type TagManifestsProvider interface {
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// ManifestDigests returns set of digests that this tag historically pointed to. This also
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// includes currently linked digest. There is no ordering guaranteed
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ManifestDigests(ctx context.Context, tag string) ([]digest.Digest, error)
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}
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