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moby--moby/daemon/content.go
Brian Goff 9ca3bb632e Store image manifests in containerd content store
This allows us to cache manifests and avoid extra round trips to the
registry for content we already know about.

dockerd currently does not support containerd on Windows, so this does
not store manifests on Windows, yet.

Signed-off-by: Brian Goff <cpuguy83@gmail.com>
2020-11-05 20:02:18 +00:00

30 lines
983 B
Go

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
}