Timestamp added to container object.

Fix for #912

Signed-off-by: Kunal Kushwaha <kushwaha_kunal_v7@lab.ntt.co.jp>

metadata/buckets.go

@@ -18,6 +18,8 @@ var (
 	bucketKeyRuntime   = []byte("runtime")
 	bucketKeySpec      = []byte("spec")
 	bucketKeyRootFS    = []byte("rootfs")
+	bucketKeyCreatedAt = []byte("createdat")
+	bucketKeyUpdatedAt = []byte("updatedat")
 )
 
 // InitDB will initialize the database for use. The database must be opened for

metadata/containers.go

@@ -2,6 +2,7 @@ package metadata
 
 import (
 	"context"
+	"time"
 
 	"github.com/boltdb/bolt"
 	"github.com/containerd/containerd/containers"
@@ -74,6 +75,8 @@ func (s *containerStore) Create(ctx context.Context, container containers.Contai
 		return containers.Container{}, err
 	}
 
+	container.CreatedAt = time.Now()
+	container.UpdatedAt = container.CreatedAt
 	if err := writeContainer(&container, cbkt); err != nil {
 		return containers.Container{}, errors.Wrap(err, "failed to write container")
 	}
@@ -92,6 +95,7 @@ func (s *containerStore) Update(ctx context.Context, container containers.Contai
 		return containers.Container{}, errors.Wrap(ErrNotFound, "no content for id")
 	}
 
+	container.UpdatedAt = time.Now()
 	if err := writeContainer(&container, cbkt); err != nil {
 		return containers.Container{}, errors.Wrap(err, "failed to write container")
 	}
@@ -123,6 +127,14 @@ func readContainer(container *containers.Container, bkt *bolt.Bucket) error {
 			container.Spec = v
 		case string(bucketKeyRootFS):
 			container.RootFS = string(v)
+		case string(bucketKeyCreatedAt):
+			if err := container.CreatedAt.UnmarshalBinary(v); err != nil {
+				return err
+			}
+		case string(bucketKeyUpdatedAt):
+			if err := container.UpdatedAt.UnmarshalBinary(v); err != nil {
+				return err
+			}
 		case string(bucketKeyLabels):
 			lbkt := bkt.Bucket(bucketKeyLabels)
 			if lbkt == nil {
@@ -142,11 +154,21 @@ func readContainer(container *containers.Container, bkt *bolt.Bucket) error {
 }
 
 func writeContainer(container *containers.Container, bkt *bolt.Bucket) error {
+	createdAt, err := container.CreatedAt.MarshalBinary()
+	if err != nil {
+		return err
+	}
+	updatedAt, err := container.UpdatedAt.MarshalBinary()
+	if err != nil {
+		return err
+	}
 	for _, v := range [][2][]byte{
 		{bucketKeyImage, []byte(container.Image)},
 		{bucketKeyRuntime, []byte(container.Runtime)},
 		{bucketKeySpec, container.Spec},
 		{bucketKeyRootFS, []byte(container.RootFS)},
+		{bucketKeyCreatedAt, createdAt},
+		{bucketKeyUpdatedAt, updatedAt},
 	} {
 		if err := bkt.Put(v[0], v[1]); err != nil {
 			return err