Files
warewulf/internal/pkg/container/imprt.go
2021-09-06 14:50:27 -07:00

78 lines
1.5 KiB
Go

package container
import (
"context"
"os"
"path"
"github.com/containers/image/v5/types"
"github.com/containers/storage/drivers/copy"
"github.com/pkg/errors"
"github.com/hpcng/warewulf/internal/pkg/config"
"github.com/hpcng/warewulf/internal/pkg/oci"
"github.com/hpcng/warewulf/internal/pkg/util"
)
func ImportDocker(uri string, name string, sCtx *types.SystemContext) error {
OciBlobCacheDir := config.LocalStateDir + "/oci/blobs"
err := os.MkdirAll(OciBlobCacheDir, 0755)
if err != nil {
return err
}
if ValidName(name) == false {
return errors.New("VNFS name contains illegal characters: " + name)
}
fullPath := RootFsDir(name)
err = os.MkdirAll(fullPath, 0755)
if err != nil {
return err
}
p, err := oci.NewPuller(
oci.OptSetBlobCachePath(OciBlobCacheDir),
oci.OptSetSystemContext(sCtx),
)
if err != nil {
return err
}
if _, err := p.GenerateID(context.Background(), uri); err != nil {
return err
}
if err := p.Pull(context.Background(), uri, fullPath); err != nil {
return err
}
return nil
}
func ImportDirectory(uri string, name string) error {
fullPath := RootFsDir(name)
err := os.MkdirAll(fullPath, 0755)
if err != nil {
return err
}
if !util.IsDir(uri) {
return errors.New("Import directory does not exist: " + uri)
}
if !util.IsFile(path.Join(uri, "/bin/sh")) {
return errors.New("Source directory has no /bin/sh: " + uri)
}
err = copy.DirCopy(uri, fullPath, copy.Content, true)
if err != nil {
return err
}
return nil
}