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moby--moby/daemon/content.go

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package daemon
import (
"os"
"path/filepath"
"github.com/containerd/containerd/content"
"github.com/containerd/containerd/content/local"
"github.com/containerd/containerd/leases"
"github.com/containerd/containerd/metadata"
"github.com/pkg/errors"
"go.etcd.io/bbolt"
)
func (d *Daemon) configureLocalContentStore() (content.Store, leases.Manager, error) {
if err := os.MkdirAll(filepath.Join(d.root, "content"), 0700); err != nil {
return nil, nil, errors.Wrap(err, "error creating dir for content store")
}
db, err := bbolt.Open(filepath.Join(d.root, "content", "metadata.db"), 0600, nil)
if err != nil {
return nil, nil, errors.Wrap(err, "error opening bolt db for content metadata store")
}
cs, err := local.NewStore(filepath.Join(d.root, "content", "data"))
if err != nil {
return nil, nil, errors.Wrap(err, "error setting up content store")
}
md := metadata.NewDB(db, cs, nil)
d.mdDB = db
return md.ContentStore(), metadata.NewLeaseManager(md), nil
}