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- package client
- import (
- "errors"
- "fmt"
- "net/url"
- "golang.org/x/net/context"
- distreference "github.com/docker/distribution/reference"
- "github.com/docker/docker/api/types/reference"
- )
- // ImageTag tags an image in the docker host
- func (cli *Client) ImageTag(ctx context.Context, imageID, ref string) error {
- distributionRef, err := distreference.ParseNamed(ref)
- if err != nil {
- return fmt.Errorf("Error parsing reference: %q is not a valid repository/tag", ref)
- }
- if _, isCanonical := distributionRef.(distreference.Canonical); isCanonical {
- return errors.New("refusing to create a tag with a digest reference")
- }
- tag := reference.GetTagFromNamedRef(distributionRef)
- query := url.Values{}
- query.Set("repo", distributionRef.Name())
- query.Set("tag", tag)
- resp, err := cli.post(ctx, "/images/"+imageID+"/tag", query, nil, nil)
- ensureReaderClosed(resp)
- return err
- }
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