313 lines
8.9 KiB
Go
313 lines
8.9 KiB
Go
/*
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Copyright the Velero contributors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package framework
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import (
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"context"
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"encoding/json"
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isv1 "github.com/vmware-tanzu/velero/pkg/plugin/velero/item_snapshotter/v1"
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"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
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api "github.com/vmware-tanzu/velero/pkg/apis/velero/v1"
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"github.com/pkg/errors"
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"github.com/vmware-tanzu/velero/pkg/plugin/framework/common"
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proto "github.com/vmware-tanzu/velero/pkg/plugin/generated"
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)
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// ItemSnapshotterGRPCServer implements the proto-generated ItemSnapshotterServer interface, and accepts
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// gRPC calls and forwards them to an implementation of the pluggable interface.
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type ItemSnapshotterGRPCServer struct {
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mux *common.ServerMux
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}
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func (recv *ItemSnapshotterGRPCServer) getImpl(name string) (isv1.ItemSnapshotter, error) {
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impl, err := recv.mux.GetHandler(name)
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if err != nil {
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return nil, err
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}
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itemAction, ok := impl.(isv1.ItemSnapshotter)
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if !ok {
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return nil, errors.Errorf("%T is not an item snapshotter", impl)
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}
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return itemAction, nil
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}
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func (recv *ItemSnapshotterGRPCServer) Init(c context.Context, req *proto.ItemSnapshotterInitRequest) (response *proto.Empty, err error) {
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defer func() {
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if recoveredErr := common.HandlePanic(recover()); recoveredErr != nil {
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err = recoveredErr
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}
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}()
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impl, err := recv.getImpl(req.Plugin)
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if err != nil {
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return nil, common.NewGRPCError(err)
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}
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err = impl.Init(req.Config)
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if err != nil {
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return nil, common.NewGRPCError(err)
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}
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return &proto.Empty{}, nil
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}
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func (recv *ItemSnapshotterGRPCServer) AppliesTo(ctx context.Context, req *proto.ItemSnapshotterAppliesToRequest) (response *proto.ItemSnapshotterAppliesToResponse, err error) {
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defer func() {
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if recoveredErr := common.HandlePanic(recover()); recoveredErr != nil {
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err = recoveredErr
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}
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}()
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impl, err := recv.getImpl(req.Plugin)
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if err != nil {
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return nil, common.NewGRPCError(err)
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}
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resourceSelector, err := impl.AppliesTo()
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if err != nil {
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return nil, common.NewGRPCError(err)
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}
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return &proto.ItemSnapshotterAppliesToResponse{
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ResourceSelector: &proto.ResourceSelector{
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IncludedNamespaces: resourceSelector.IncludedNamespaces,
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ExcludedNamespaces: resourceSelector.ExcludedNamespaces,
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IncludedResources: resourceSelector.IncludedResources,
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ExcludedResources: resourceSelector.ExcludedResources,
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Selector: resourceSelector.LabelSelector,
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},
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}, nil
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}
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func (recv *ItemSnapshotterGRPCServer) AlsoHandles(ctx context.Context, req *proto.AlsoHandlesRequest) (res *proto.AlsoHandlesResponse, err error) {
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defer func() {
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if recoveredErr := common.HandlePanic(recover()); recoveredErr != nil {
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err = recoveredErr
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}
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}()
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impl, err := recv.getImpl(req.Plugin)
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if err != nil {
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return nil, common.NewGRPCError(err)
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}
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var item unstructured.Unstructured
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var backup api.Backup
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if err := json.Unmarshal(req.Item, &item); err != nil {
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return nil, common.NewGRPCError(errors.WithStack(err))
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}
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if err := json.Unmarshal(req.Backup, &backup); err != nil {
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return nil, common.NewGRPCError(errors.WithStack(err))
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}
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ahi := isv1.AlsoHandlesInput{
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Item: &item,
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Backup: &backup,
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}
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alsoHandles, err := impl.AlsoHandles(&ahi)
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if err != nil {
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return nil, common.NewGRPCError(err)
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}
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res = &proto.AlsoHandlesResponse{}
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for _, item := range alsoHandles {
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res.HandledItems = append(res.HandledItems, resourceIdentifierToProto(item))
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}
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return res, nil
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}
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func (recv *ItemSnapshotterGRPCServer) SnapshotItem(ctx context.Context, req *proto.SnapshotItemRequest) (res *proto.SnapshotItemResponse, err error) {
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defer func() {
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if recoveredErr := common.HandlePanic(recover()); recoveredErr != nil {
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err = recoveredErr
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}
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}()
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impl, err := recv.getImpl(req.Plugin)
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if err != nil {
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return nil, common.NewGRPCError(err)
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}
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var item unstructured.Unstructured
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var backup api.Backup
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if err := json.Unmarshal(req.Item, &item); err != nil {
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return nil, common.NewGRPCError(errors.WithStack(err))
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}
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if err := json.Unmarshal(req.Backup, &backup); err != nil {
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return nil, common.NewGRPCError(errors.WithStack(err))
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}
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sii := isv1.SnapshotItemInput{
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Item: &item,
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Params: req.Params,
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Backup: &backup,
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}
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sio, err := impl.SnapshotItem(ctx, &sii)
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// If the plugin implementation returned a nil updatedItem (meaning no modifications), reset updatedItem to the
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// original item.
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var updatedItemJSON []byte
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if sio.UpdatedItem == nil {
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updatedItemJSON = req.Item
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} else {
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updatedItemJSON, err = json.Marshal(sio.UpdatedItem.UnstructuredContent())
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if err != nil {
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return nil, common.NewGRPCError(errors.WithStack(err))
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}
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}
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res = &proto.SnapshotItemResponse{
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Item: updatedItemJSON,
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SnapshotID: sio.SnapshotID,
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SnapshotMetadata: sio.SnapshotMetadata,
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}
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res.AdditionalItems = packResourceIdentifiers(sio.AdditionalItems)
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res.HandledItems = packResourceIdentifiers(sio.HandledItems)
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return res, err
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}
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func (recv *ItemSnapshotterGRPCServer) Progress(ctx context.Context, req *proto.ProgressRequest) (res *proto.ProgressResponse, err error) {
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defer func() {
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if recoveredErr := common.HandlePanic(recover()); recoveredErr != nil {
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err = recoveredErr
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}
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}()
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impl, err := recv.getImpl(req.Plugin)
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if err != nil {
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return nil, common.NewGRPCError(err)
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}
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var backup api.Backup
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if err := json.Unmarshal(req.Backup, &backup); err != nil {
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return nil, common.NewGRPCError(errors.WithStack(err))
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}
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sipi := &isv1.ProgressInput{
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ItemID: protoToResourceIdentifier(req.ItemID),
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SnapshotID: req.SnapshotID,
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Backup: &backup,
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}
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sipo, err := impl.Progress(sipi)
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if err != nil {
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return nil, common.NewGRPCError(err)
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}
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res = &proto.ProgressResponse{
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Phase: string(sipo.Phase),
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ItemsCompleted: sipo.ItemsCompleted,
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ItemsToComplete: sipo.ItemsToComplete,
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Started: sipo.Started.Unix(),
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StartedNano: sipo.Started.UnixNano(),
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Updated: sipo.Updated.Unix(),
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UpdatedNano: sipo.Updated.UnixNano(),
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Err: sipo.Err,
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}
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return res, nil
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}
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func (recv *ItemSnapshotterGRPCServer) DeleteSnapshot(ctx context.Context, req *proto.DeleteItemSnapshotRequest) (empty *proto.Empty, err error) {
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defer func() {
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if recoveredErr := common.HandlePanic(recover()); recoveredErr != nil {
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err = recoveredErr
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}
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}()
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impl, err := recv.getImpl(req.Plugin)
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if err != nil {
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return nil, common.NewGRPCError(err)
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}
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var itemFromBackup unstructured.Unstructured
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if err := json.Unmarshal(req.ItemFromBackup, &itemFromBackup); err != nil {
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return nil, common.NewGRPCError(errors.WithStack(err))
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}
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disi := isv1.DeleteSnapshotInput{
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SnapshotID: req.SnapshotID,
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ItemFromBackup: &itemFromBackup,
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SnapshotMetadata: req.Metadata,
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Params: req.Params,
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}
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err = impl.DeleteSnapshot(ctx, &disi)
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if err != nil {
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return nil, common.NewGRPCError(err)
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}
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return
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}
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func (recv *ItemSnapshotterGRPCServer) CreateItemFromSnapshot(ctx context.Context, req *proto.CreateItemFromSnapshotRequest) (res *proto.CreateItemFromSnapshotResponse, err error) {
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defer func() {
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if recoveredErr := common.HandlePanic(recover()); recoveredErr != nil {
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err = recoveredErr
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}
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}()
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impl, err := recv.getImpl(req.Plugin)
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if err != nil {
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return nil, common.NewGRPCError(err)
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}
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var snapshottedItem unstructured.Unstructured
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if err := json.Unmarshal(req.Item, &snapshottedItem); err != nil {
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return nil, common.NewGRPCError(errors.WithStack(err))
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}
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var itemFromBackup unstructured.Unstructured
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if err := json.Unmarshal(req.Item, &itemFromBackup); err != nil {
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return nil, common.NewGRPCError(errors.WithStack(err))
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}
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var restore api.Restore
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if err := json.Unmarshal(req.Restore, &restore); err != nil {
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return nil, common.NewGRPCError(errors.WithStack(err))
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}
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cii := isv1.CreateItemInput{
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SnapshottedItem: &snapshottedItem,
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SnapshotID: req.SnapshotID,
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ItemFromBackup: &itemFromBackup,
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SnapshotMetadata: req.SnapshotMetadata,
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Params: req.Params,
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Restore: &restore,
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}
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cio, err := impl.CreateItemFromSnapshot(ctx, &cii)
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if err != nil {
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return nil, common.NewGRPCError(err)
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}
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var updatedItemJSON []byte
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if cio.UpdatedItem == nil {
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updatedItemJSON = req.Item
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} else {
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updatedItemJSON, err = json.Marshal(cio.UpdatedItem.UnstructuredContent())
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if err != nil {
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return nil, common.NewGRPCError(errors.WithStack(err))
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}
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}
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res = &proto.CreateItemFromSnapshotResponse{
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Item: updatedItemJSON,
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SkipRestore: cio.SkipRestore,
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}
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res.AdditionalItems = packResourceIdentifiers(cio.AdditionalItems)
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return
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}
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