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authorValentin Rothberg <rothberg@redhat.com>2020-07-31 09:27:21 +0200
committerValentin Rothberg <rothberg@redhat.com>2020-09-08 08:47:19 +0200
commit7fea46752cbfb0ef7bfdd694afe95038c9875212 (patch)
treecabd8c0ea232c36cfff7511cb1b1f3bfa30c0bbf /cmd
parentbe7778df6c70227dab760ea92637ed97dad29641 (diff)
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support multi-image (docker) archives
Support loading and saving tarballs with more than one image. Add a new `/libpod/images/export` endpoint to the rest API to allow for exporting/saving multiple images into an archive. Note that a non-release version of containers/image is vendored. A release version must be vendored before cutting a new Podman release. We force the containers/image version via a replace in the go.mod file; this way go won't try to match the versions. Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
Diffstat (limited to 'cmd')
-rw-r--r--cmd/podman/images/save.go14
1 files changed, 12 insertions, 2 deletions
diff --git a/cmd/podman/images/save.go b/cmd/podman/images/save.go
index 82a3513f5..c57f61221 100644
--- a/cmd/podman/images/save.go
+++ b/cmd/podman/images/save.go
@@ -16,7 +16,10 @@ import (
"golang.org/x/crypto/ssh/terminal"
)
-var validFormats = []string{define.OCIManifestDir, define.OCIArchive, define.V2s2ManifestDir, define.V2s2Archive}
+var (
+ validFormats = []string{define.OCIManifestDir, define.OCIArchive, define.V2s2ManifestDir, define.V2s2Archive}
+ containerConfig = registry.PodmanConfig()
+)
var (
saveDescription = `Save an image to docker-archive or oci-archive on the local machine. Default is docker-archive.`
@@ -79,7 +82,7 @@ func saveFlags(flags *pflag.FlagSet) {
flags.StringVar(&saveOpts.Format, "format", define.V2s2Archive, "Save image to oci-archive, oci-dir (directory with oci manifest type), docker-archive, docker-dir (directory with v2s2 manifest type)")
flags.StringVarP(&saveOpts.Output, "output", "o", "", "Write to a specified file (default: stdout, which must be redirected)")
flags.BoolVarP(&saveOpts.Quiet, "quiet", "q", false, "Suppress the output")
-
+ flags.BoolVarP(&saveOpts.MultiImageArchive, "multi-image-archive", "m", containerConfig.Engine.MultiImageArchive, "Interpret additional arguments as images not tags and create a multi-image-archive (only for docker-archive)")
}
func save(cmd *cobra.Command, args []string) (finalErr error) {
@@ -118,6 +121,13 @@ func save(cmd *cobra.Command, args []string) (finalErr error) {
if len(args) > 1 {
tags = args[1:]
}
+
+ // Decide whether c/image's progress bars should use stderr or stdout.
+ // If the output is set of stdout, any log message there would corrupt
+ // the tarfile.
+ if saveOpts.Output == os.Stdout.Name() {
+ saveOpts.Quiet = true
+ }
err := registry.ImageEngine().Save(context.Background(), args[0], tags, saveOpts)
if err == nil {
succeeded = true