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package images
import (
"errors"
"os"
"github.com/containers/common/pkg/auth"
"github.com/containers/common/pkg/completion"
"github.com/containers/podman/v4/cmd/podman/common"
"github.com/containers/podman/v4/cmd/podman/registry"
"github.com/containers/podman/v4/pkg/domain/entities"
"github.com/spf13/cobra"
)
var (
signDescription = "Create a signature file that can be used later to verify the image."
signCommand = &cobra.Command{
Annotations: map[string]string{registry.EngineMode: registry.ABIMode},
Use: "sign [options] IMAGE [IMAGE...]",
Short: "Sign an image",
Long: signDescription,
RunE: sign,
Args: cobra.MinimumNArgs(1),
ValidArgsFunction: common.AutocompleteImages,
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{
Command: signCommand,
Parent: imageCmd,
})
flags := signCommand.Flags()
directoryFlagName := "directory"
flags.StringVarP(&signOptions.Directory, directoryFlagName, "d", "", "Define an alternate directory to store signatures")
_ = signCommand.RegisterFlagCompletionFunc(directoryFlagName, completion.AutocompleteDefault)
signByFlagName := "sign-by"
flags.StringVar(&signOptions.SignBy, signByFlagName, "", "Name of the signing key")
_ = signCommand.RegisterFlagCompletionFunc(signByFlagName, completion.AutocompleteNone)
certDirFlagName := "cert-dir"
flags.StringVar(&signOptions.CertDir, certDirFlagName, "", "`Pathname` of a directory containing TLS certificates and keys")
_ = signCommand.RegisterFlagCompletionFunc(certDirFlagName, completion.AutocompleteDefault)
flags.BoolVarP(&signOptions.All, "all", "a", false, "Sign all the manifests of the multi-architecture image")
authfileFlagName := "authfile"
flags.StringVar(&signOptions.Authfile, authfileFlagName, auth.GetDefaultAuthFile(), "Path of the authentication file. Use REGISTRY_AUTH_FILE environment variable to override")
_ = signCommand.RegisterFlagCompletionFunc(authfileFlagName, completion.AutocompleteDefault)
}
func sign(cmd *cobra.Command, args []string) error {
if signOptions.SignBy == "" {
return errors.New("please provide an identity")
}
var sigStoreDir string
if len(signOptions.Directory) > 0 {
sigStoreDir = signOptions.Directory
if _, err := os.Stat(sigStoreDir); err != nil {
return err
}
}
_, err := registry.ImageEngine().Sign(registry.Context(), args, signOptions)
return err
}
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