package images import ( "os" "github.com/containers/common/pkg/auth" "github.com/containers/common/pkg/completion" "github.com/containers/image/v5/types" "github.com/containers/podman/v3/cmd/podman/common" "github.com/containers/podman/v3/cmd/podman/registry" "github.com/containers/podman/v3/pkg/domain/entities" "github.com/containers/podman/v3/pkg/util" "github.com/spf13/cobra" ) // pushOptionsWrapper wraps entities.ImagepushOptions and prevents leaking // CLI-only fields into the API types. type pushOptionsWrapper struct { entities.ImagePushOptions TLSVerifyCLI bool // CLI only CredentialsCLI string } var ( pushOptions = pushOptionsWrapper{} pushDescription = `Pushes a source image to a specified destination. The Image "DESTINATION" uses a "transport":"details" format. See podman-push(1) section "DESTINATION" for the expected format.` // Command: podman push pushCmd = &cobra.Command{ Use: "push [options] IMAGE [DESTINATION]", Short: "Push an image to a specified destination", Long: pushDescription, RunE: imagePush, Args: cobra.RangeArgs(1, 2), ValidArgsFunction: common.AutocompleteImages, Example: `podman push imageID docker://registry.example.com/repository:tag podman push imageID oci-archive:/path/to/layout:image:tag`, } // Command: podman image push // It's basically a clone of `pushCmd` with the exception of being a // child of the images command. imagePushCmd = &cobra.Command{ Use: pushCmd.Use, Short: pushCmd.Short, Long: pushCmd.Long, RunE: pushCmd.RunE, Args: pushCmd.Args, ValidArgsFunction: pushCmd.ValidArgsFunction, Example: `podman image push imageID docker://registry.example.com/repository:tag podman image push imageID oci-archive:/path/to/layout:image:tag`, } ) func init() { // push registry.Commands = append(registry.Commands, registry.CliCommand{ Command: pushCmd, }) pushFlags(pushCmd) // images push registry.Commands = append(registry.Commands, registry.CliCommand{ Command: imagePushCmd, Parent: imageCmd, }) pushFlags(imagePushCmd) } // pushFlags set the flags for the push command. func pushFlags(cmd *cobra.Command) { flags := cmd.Flags() // For now default All flag to true, for pushing of manifest lists pushOptions.All = true authfileFlagName := "authfile" flags.StringVar(&pushOptions.Authfile, authfileFlagName, auth.GetDefaultAuthFile(), "Path of the authentication file. Use REGISTRY_AUTH_FILE environment variable to override") _ = cmd.RegisterFlagCompletionFunc(authfileFlagName, completion.AutocompleteDefault) certDirFlagName := "cert-dir" flags.StringVar(&pushOptions.CertDir, certDirFlagName, "", "Path to a directory containing TLS certificates and keys") _ = cmd.RegisterFlagCompletionFunc(certDirFlagName, completion.AutocompleteDefault) flags.BoolVar(&pushOptions.Compress, "compress", false, "Compress tarball image layers when pushing to a directory using the 'dir' transport. (default is same compression type as source)") credsFlagName := "creds" flags.StringVar(&pushOptions.CredentialsCLI, credsFlagName, "", "`Credentials` (USERNAME:PASSWORD) to use for authenticating to a registry") _ = cmd.RegisterFlagCompletionFunc(credsFlagName, completion.AutocompleteNone) flags.Bool("disable-content-trust", false, "This is a Docker specific option and is a NOOP") digestfileFlagName := "digestfile" flags.StringVar(&pushOptions.DigestFile, digestfileFlagName, "", "Write the digest of the pushed image to the specified file") _ = cmd.RegisterFlagCompletionFunc(digestfileFlagName, completion.AutocompleteDefault) formatFlagName := "format" flags.StringVarP(&pushOptions.Format, formatFlagName, "f", "", "Manifest type (oci, v2s2, or v2s1) to use in the destination (default is manifest type of source, with fallbacks)") _ = cmd.RegisterFlagCompletionFunc(formatFlagName, common.AutocompleteManifestFormat) flags.BoolVarP(&pushOptions.Quiet, "quiet", "q", false, "Suppress output information when pushing images") flags.BoolVar(&pushOptions.RemoveSignatures, "remove-signatures", false, "Discard any pre-existing signatures in the image") signByFlagName := "sign-by" flags.StringVar(&pushOptions.SignBy, signByFlagName, "", "Add a signature at the destination using the specified key") _ = cmd.RegisterFlagCompletionFunc(signByFlagName, completion.AutocompleteNone) flags.BoolVar(&pushOptions.TLSVerifyCLI, "tls-verify", true, "Require HTTPS and verify certificates when contacting registries") if registry.IsRemote() { _ = flags.MarkHidden("cert-dir") _ = flags.MarkHidden("compress") _ = flags.MarkHidden("digestfile") _ = flags.MarkHidden("quiet") _ = flags.MarkHidden("remove-signatures") _ = flags.MarkHidden("sign-by") } if !registry.IsRemote() { flags.StringVar(&pushOptions.SignaturePolicy, "signature-policy", "", "Path to a signature-policy file") _ = flags.MarkHidden("signature-policy") } } // imagePush is implement the command for pushing images. func imagePush(cmd *cobra.Command, args []string) error { source := args[0] destination := args[len(args)-1] // TLS verification in c/image is controlled via a `types.OptionalBool` // which allows for distinguishing among set-true, set-false, unspecified // which is important to implement a sane way of dealing with defaults of // boolean CLI flags. if cmd.Flags().Changed("tls-verify") { pushOptions.SkipTLSVerify = types.NewOptionalBool(!pushOptions.TLSVerifyCLI) } if pushOptions.Authfile != "" { if _, err := os.Stat(pushOptions.Authfile); err != nil { return err } } if pushOptions.CredentialsCLI != "" { creds, err := util.ParseRegistryCreds(pushOptions.CredentialsCLI) if err != nil { return err } pushOptions.Username = creds.Username pushOptions.Password = creds.Password } // Let's do all the remaining Yoga in the API to prevent us from scattering // logic across (too) many parts of the code. return registry.ImageEngine().Push(registry.GetContext(), source, destination, pushOptions.ImagePushOptions) }