From bb39051616fbce12b4cb3135a62c7747273ab0aa Mon Sep 17 00:00:00 2001 From: Brent Baude Date: Tue, 31 Mar 2020 19:13:19 -0500 Subject: podmanv2 export add ability to export a container to a tarball Signed-off-by: Brent Baude --- pkg/api/handlers/compat/containers_export.go | 42 ++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 pkg/api/handlers/compat/containers_export.go (limited to 'pkg/api/handlers/compat') diff --git a/pkg/api/handlers/compat/containers_export.go b/pkg/api/handlers/compat/containers_export.go new file mode 100644 index 000000000..37b9fbf2b --- /dev/null +++ b/pkg/api/handlers/compat/containers_export.go @@ -0,0 +1,42 @@ +package compat + +import ( + "io/ioutil" + "net/http" + "os" + + "github.com/containers/libpod/libpod" + "github.com/containers/libpod/pkg/api/handlers/utils" + "github.com/pkg/errors" +) + +func ExportContainer(w http.ResponseWriter, r *http.Request) { + runtime := r.Context().Value("runtime").(*libpod.Runtime) + name := utils.GetName(r) + con, err := runtime.LookupContainer(name) + if err != nil { + utils.ContainerNotFound(w, name, err) + return + } + tmpfile, err := ioutil.TempFile("", "api.tar") + if err != nil { + utils.Error(w, "unable to create tarball tempfile", http.StatusInternalServerError, errors.Wrap(err, "unable to create tempfile")) + return + } + defer os.Remove(tmpfile.Name()) + if err := tmpfile.Close(); err != nil { + utils.Error(w, "unable to close tempfile", http.StatusInternalServerError, errors.Wrap(err, "unable to close tempfile")) + return + } + if err := con.Export(tmpfile.Name()); err != nil { + utils.Error(w, "failed to save the image", http.StatusInternalServerError, errors.Wrap(err, "failed to save image")) + return + } + rdr, err := os.Open(tmpfile.Name()) + if err != nil { + utils.Error(w, "failed to read temp tarball", http.StatusInternalServerError, errors.Wrap(err, "failed to read the exported tarfile")) + return + } + defer rdr.Close() + utils.WriteResponse(w, http.StatusOK, rdr) +} -- cgit v1.2.3-54-g00ecf