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