7d62e40f7e
Since Go 1.7, context is a standard package. Since Go 1.9, everything that is provided by "x/net/context" is a couple of type aliases to types in "context". Many vendored packages still use x/net/context, so vendor entry remains for now. Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
37 lines
1 KiB
Go
37 lines
1 KiB
Go
package client // import "github.com/docker/docker/client"
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import (
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"context"
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"net/url"
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"github.com/docker/distribution/reference"
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"github.com/pkg/errors"
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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 := reference.ParseAnyReference(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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ref, err := reference.ParseNormalizedNamed(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 := ref.(reference.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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ref = reference.TagNameOnly(ref)
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query := url.Values{}
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query.Set("repo", reference.FamiliarName(ref))
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if tagged, ok := ref.(reference.Tagged); ok {
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query.Set("tag", tagged.Tag())
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}
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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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