diff options
Diffstat (limited to 'cmd/kpod/save.go')
| -rw-r--r-- | cmd/kpod/save.go | 34 |
1 files changed, 31 insertions, 3 deletions
diff --git a/cmd/kpod/save.go b/cmd/kpod/save.go index 0f5fcfa4d..85a8c7930 100644 --- a/cmd/kpod/save.go +++ b/cmd/kpod/save.go @@ -3,15 +3,27 @@ package main import ( "io" "os" + "strings" + "github.com/containers/image/manifest" + imgspecv1 "github.com/opencontainers/image-spec/specs-go/v1" "github.com/pkg/errors" "github.com/projectatomic/libpod/libpod" "github.com/sirupsen/logrus" "github.com/urfave/cli" ) +const ( + ociManifestDir = "oci-dir" + v2s2ManifestDir = "docker-dir" +) + var ( saveFlags = []cli.Flag{ + cli.BoolFlag{ + Name: "compress", + Usage: "compress tarball image layers when saving to a directory using the 'dir' transport. (default is same compression type as source)", + }, cli.StringFlag{ Name: "output, o", Usage: "Write to a file, default is STDOUT", @@ -23,7 +35,7 @@ var ( }, cli.StringFlag{ Name: "format", - Usage: "Save image to oci-archive", + Usage: "Save image to oci-archive, oci-dir (directory with oci manifest type), docker-dir (directory with v2s2 manifest type)", }, } saveDescription = ` @@ -56,6 +68,10 @@ func saveCmd(c *cli.Context) error { } defer runtime.Shutdown(false) + if c.IsSet("compress") && (c.String("format") != ociManifestDir && c.String("format") != v2s2ManifestDir && c.String("format") == "") { + return errors.Errorf("--compress can only be set when --format is either 'oci-dir' or 'docker-dir'") + } + var writer io.Writer if !c.Bool("quiet") { writer = os.Stdout @@ -69,10 +85,16 @@ func saveCmd(c *cli.Context) error { } } - var dst string + var dst, manifestType string switch c.String("format") { case libpod.OCIArchive: dst = libpod.OCIArchive + ":" + output + case "oci-dir": + dst = libpod.DirTransport + ":" + output + manifestType = imgspecv1.MediaTypeImageManifest + case "docker-dir": + dst = libpod.DirTransport + ":" + output + manifestType = manifest.DockerV2Schema2MediaType case libpod.DockerArchive: fallthrough case "": @@ -84,12 +106,18 @@ func saveCmd(c *cli.Context) error { saveOpts := libpod.CopyOptions{ SignaturePolicyPath: "", Writer: writer, + ManifestMIMEType: manifestType, + ForceCompress: c.Bool("compress"), } // only one image is supported for now // future pull requests will fix this for _, image := range args { - dest := dst + ":" + image + dest := dst + // need dest to be in the format transport:path:reference for the following transports + if strings.Contains(dst, libpod.OCIArchive) || strings.Contains(dst, libpod.DockerArchive) { + dest = dst + ":" + image + } if err := runtime.PushImage(image, dest, saveOpts); err != nil { if err2 := os.Remove(output); err2 != nil { logrus.Errorf("error deleting %q: %v", output, err) |