podmanv2 import

add the ability to import a container image from a container export

Signed-off-by: Brent Baude <bbaude@redhat.com>

1 files changed, 87 insertions, 0 deletions

diff --git a/cmd/podmanV2/images/import.go b/cmd/podmanV2/images/import.go
new file mode 100644
index 000000000..09a15585f
--- /dev/null
+++ b/cmd/podmanV2/images/import.go
@@ -0,0 +1,87 @@
+package images
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/containers/libpod/cmd/podmanV2/parse"
+	"github.com/containers/libpod/cmd/podmanV2/registry"
+	"github.com/containers/libpod/pkg/domain/entities"
+	"github.com/hashicorp/go-multierror"
+	"github.com/pkg/errors"
+	"github.com/spf13/cobra"
+)
+
+var (
+	importDescription = `Create a container image from the contents of the specified tarball (.tar, .tar.gz, .tgz, .bzip, .tar.xz, .txz).
+
+  Note remote tar balls can be specified, via web address.
+  Optionally tag the image. You can specify the instructions using the --change option.`
+	importCommand = &cobra.Command{
+		Use:               "import [flags] PATH [REFERENCE]",
+		Short:             "Import a tarball to create a filesystem image",
+		Long:              importDescription,
+		RunE:              importCon,
+		PersistentPreRunE: preRunE,
+		Example: `podman import http://example.com/ctr.tar url-image
+  cat ctr.tar | podman -q import --message "importing the ctr.tar tarball" - image-imported
+  cat ctr.tar | podman import -`,
+	}
+)
+
+var (
+	importOpts entities.ImageImportOptions
+)
+
+func init() {
+	registry.Commands = append(registry.Commands, registry.CliCommand{
+		Mode:    []entities.EngineMode{entities.ABIMode, entities.TunnelMode},
+		Command: importCommand,
+	})
+
+	importCommand.SetHelpTemplate(registry.HelpTemplate())
+	importCommand.SetUsageTemplate(registry.UsageTemplate())
+	flags := importCommand.Flags()
+	flags.StringArrayVarP(&importOpts.Changes, "change", "c", []string{}, "Apply the following possible instructions to the created image (default []): CMD | ENTRYPOINT | ENV | EXPOSE | LABEL | STOPSIGNAL | USER | VOLUME | WORKDIR")
+	flags.StringVarP(&importOpts.Message, "message", "m", "", "Set commit message for imported image")
+	flags.BoolVarP(&importOpts.Quiet, "quiet", "q", false, "Suppress output")
+}
+
+func importCon(cmd *cobra.Command, args []string) error {
+	var (
+		source    string
+		reference string
+	)
+	switch len(args) {
+	case 0:
+		return errors.Errorf("need to give the path to the tarball, or must specify a tarball of '-' for stdin")
+	case 1:
+		source = args[0]
+	case 2:
+		source = args[0]
+		// TODO when save is merged, we need to process reference
+		// like it is done in there or we end up with docker.io prepends
+		// instead of the localhost ones
+		reference = args[1]
+	default:
+		return errors.Errorf("too many arguments. Usage TARBALL [REFERENCE]")
+	}
+	errFileName := parse.ValidateFileName(source)
+	errURL := parse.ValidURL(source)
+	if errURL == nil {
+		importOpts.SourceIsURL = true
+	}
+	if errFileName != nil && errURL != nil {
+		return multierror.Append(errFileName, errURL)
+	}
+
+	importOpts.Source = source
+	importOpts.Reference = reference
+
+	response, err := registry.ImageEngine().Import(context.Background(), importOpts)
+	if err != nil {
+		return err
+	}
+	fmt.Println(response.Id)
+	return nil
+}