From edddfe8c4f7761b12dc64ea4aa0a83b755aa124f Mon Sep 17 00:00:00 2001 From: flouthoc Date: Fri, 20 Aug 2021 14:22:54 +0530 Subject: volumes: Add support for exporting volumes to external tar Adds support for transferring data between systems and backing up systems. Use cases: recover from disasters or move data between machines. Signed-off-by: flouthoc --- utils/utils.go | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'utils') diff --git a/utils/utils.go b/utils/utils.go index a2268a30b..2e415130e 100644 --- a/utils/utils.go +++ b/utils/utils.go @@ -107,6 +107,16 @@ func UntarToFileSystem(dest string, tarball *os.File, options *archive.TarOption return archive.Untar(tarball, dest, options) } +// Creates a new tar file and wrties bytes from io.ReadCloser +func CreateTarFromSrc(source string, dest string) error { + file, err := os.Create(dest) + if err != nil { + return errors.Wrapf(err, "Could not create tarball file '%s'", dest) + } + defer file.Close() + return TarToFilesystem(source, file) +} + // TarToFilesystem creates a tarball from source and writes to an os.file // provided func TarToFilesystem(source string, tarball *os.File) error { -- cgit v1.2.3-54-g00ecf