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package compat
import (
"io/ioutil"
"net/http"
"os"
"github.com/containers/podman/v3/libpod"
"github.com/containers/podman/v3/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)
}
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