986f076276
Add a new generic container registry client via a new `container` package. Use this to create a command line utility as well as a new upload target for container registries. The code uses the github.com/containers/* project and packages to interact with container registires that is also used by skopeo, podman et al. One if the dependencies is `proglottis/gpgme` that is using cgo to bind libgpgme, so we have to add the corresponding devel package to the BuildRequires as well as installing it on CI. Checks will follow later via an integration test.
38 lines
1.3 KiB
Go
38 lines
1.3 KiB
Go
package copy
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import (
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"github.com/containers/image/v5/docker/reference"
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"github.com/containers/image/v5/signature"
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"github.com/containers/image/v5/transports"
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"github.com/pkg/errors"
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)
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// createSignature creates a new signature of manifest using keyIdentity.
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func (c *copier) createSignature(manifest []byte, keyIdentity string, passphrase string, identity reference.Named) ([]byte, error) {
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mech, err := signature.NewGPGSigningMechanism()
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if err != nil {
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return nil, errors.Wrap(err, "initializing GPG")
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}
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defer mech.Close()
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if err := mech.SupportsSigning(); err != nil {
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return nil, errors.Wrap(err, "Signing not supported")
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}
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if identity != nil {
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if reference.IsNameOnly(identity) {
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return nil, errors.Errorf("Sign identity must be a fully specified reference %s", identity)
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}
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} else {
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identity = c.dest.Reference().DockerReference()
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if identity == nil {
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return nil, errors.Errorf("Cannot determine canonical Docker reference for destination %s", transports.ImageName(c.dest.Reference()))
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}
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}
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c.Printf("Signing manifest\n")
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newSig, err := signature.SignDockerManifestWithOptions(manifest, identity.String(), mech, keyIdentity, &signature.SignOptions{Passphrase: passphrase})
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if err != nil {
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return nil, errors.Wrap(err, "creating signature")
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}
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return newSig, nil
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}
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