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package images
import (
"os"
"github.com/containers/podman/v2/cmd/podman/registry"
"github.com/containers/podman/v2/pkg/domain/entities"
"github.com/pkg/errors"
"github.com/spf13/cobra"
)
var (
signDescription = "Create a signature file that can be used later to verify the image."
signCommand = &cobra.Command{
Use: "sign [options] IMAGE [IMAGE...]",
Short: "Sign an image",
Long: signDescription,
RunE: sign,
Args: cobra.MinimumNArgs(1),
Example: `podman image sign --sign-by mykey imageID
podman image sign --sign-by mykey --directory ./mykeydir imageID`,
}
)
var (
signOptions entities.SignOptions
)
func init() {
registry.Commands = append(registry.Commands, registry.CliCommand{
Mode: []entities.EngineMode{entities.ABIMode},
Command: signCommand,
Parent: imageCmd,
})
flags := signCommand.Flags()
flags.StringVarP(&signOptions.Directory, "directory", "d", "", "Define an alternate directory to store signatures")
flags.StringVar(&signOptions.SignBy, "sign-by", "", "Name of the signing key")
flags.StringVar(&signOptions.CertDir, "cert-dir", "", "`Pathname` of a directory containing TLS certificates and keys")
}
func sign(cmd *cobra.Command, args []string) error {
if signOptions.SignBy == "" {
return errors.Errorf("please provide an identity")
}
var sigStoreDir string
if len(signOptions.Directory) > 0 {
sigStoreDir = signOptions.Directory
if _, err := os.Stat(sigStoreDir); err != nil {
return errors.Wrapf(err, "invalid directory %s", sigStoreDir)
}
}
_, err := registry.ImageEngine().Sign(registry.Context(), args, signOptions)
return err
}
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