Merge pull request #254 from tonistiigi/fix-create-time

exported: fix image creation time on export

client/client_test.go

@@ -476,6 +476,8 @@ func testBuildPushAndValidate(t *testing.T, sb integration.Sandbox) {
 	require.NotEqual(t, "", ociimg.Config.WorkingDir)
 	require.Equal(t, "layers", ociimg.RootFS.Type)
 	require.Equal(t, 2, len(ociimg.RootFS.DiffIDs))
+	require.NotNil(t, ociimg.Created)
+	require.True(t, time.Since(*ociimg.Created) < 2*time.Minute)
 	require.Condition(t, func() bool {
 		for _, env := range ociimg.Config.Env {
 			if strings.HasPrefix(env, "PATH=") {

exporter/containerimage/writer.go

@@ -179,6 +179,13 @@ func patchImageConfig(dt []byte, dps []blobs.DiffPair, history []ocispec.History
 	}
 	m["history"] = dt
 
+	now := time.Now()
+	dt, err = json.Marshal(&now)
+	if err != nil {
+		return nil, errors.Wrap(err, "failed to marshal creation time")
+	}
+	m["created"] = dt
+
 	dt, err = json.Marshal(m)
 	return dt, errors.Wrap(err, "failed to marshal config after patch")
 }