40 lines
1.1 KiB
Go
40 lines
1.1 KiB
Go
package daemon // import "github.com/docker/docker/daemon"
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import (
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"github.com/docker/distribution/reference"
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"github.com/docker/docker/image"
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)
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// TagImage creates the tag specified by newTag, pointing to the image named
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// imageName (alternatively, imageName can also be an image ID).
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func (daemon *Daemon) TagImage(imageName, repository, tag string) error {
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imageID, _, err := daemon.GetImageIDAndOS(imageName)
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if err != nil {
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return err
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}
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newTag, err := reference.ParseNormalizedNamed(repository)
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if err != nil {
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return err
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}
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if tag != "" {
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if newTag, err = reference.WithTag(reference.TrimNamed(newTag), tag); err != nil {
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return err
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}
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}
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return daemon.TagImageWithReference(imageID, newTag)
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}
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// TagImageWithReference adds the given reference to the image ID provided.
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func (daemon *Daemon) TagImageWithReference(imageID image.ID, newTag reference.Named) error {
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if err := daemon.referenceStore.AddTag(newTag, imageID.Digest(), true); err != nil {
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return err
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}
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if err := daemon.imageStore.SetLastUpdated(imageID); err != nil {
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return err
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}
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daemon.LogImageEvent(imageID.String(), reference.FamiliarString(newTag), "tag")
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return nil
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}
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