Move services to plugins/services
Signed-off-by: Derek McGowan <derek@mcg.dev>
This commit is contained in:
Derek McGowan
267
plugins/services/snapshots/service.go
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267
plugins/services/snapshots/service.go
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@@ -0,0 +1,267 @@
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/*
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Copyright The containerd Authors.
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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 snapshots
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import (
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"context"
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snapshotsapi "github.com/containerd/containerd/v2/api/services/snapshots/v1"
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"github.com/containerd/containerd/v2/core/mount"
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"github.com/containerd/containerd/v2/errdefs"
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"github.com/containerd/containerd/v2/plugins"
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"github.com/containerd/containerd/v2/plugins/services"
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ptypes "github.com/containerd/containerd/v2/protobuf/types"
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"github.com/containerd/containerd/v2/snapshots"
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"github.com/containerd/log"
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"github.com/containerd/plugin"
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"github.com/containerd/plugin/registry"
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"google.golang.org/grpc"
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)
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func init() {
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registry.Register(&plugin.Registration{
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Type: plugins.GRPCPlugin,
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ID: "snapshots",
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Requires: []plugin.Type{
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plugins.ServicePlugin,
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},
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InitFn: newService,
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})
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}
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var empty = &ptypes.Empty{}
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type service struct {
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ss map[string]snapshots.Snapshotter
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snapshotsapi.UnimplementedSnapshotsServer
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}
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func newService(ic *plugin.InitContext) (interface{}, error) {
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i, err := ic.GetByID(plugins.ServicePlugin, services.SnapshotsService)
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if err != nil {
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return nil, err
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}
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return &service{ss: i.(map[string]snapshots.Snapshotter)}, nil
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}
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func (s *service) getSnapshotter(name string) (snapshots.Snapshotter, error) {
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if name == "" {
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return nil, errdefs.ToGRPCf(errdefs.ErrInvalidArgument, "snapshotter argument missing")
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}
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sn := s.ss[name]
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if sn == nil {
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return nil, errdefs.ToGRPCf(errdefs.ErrInvalidArgument, "snapshotter not loaded: %s", name)
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}
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return sn, nil
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}
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func (s *service) Register(gs *grpc.Server) error {
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snapshotsapi.RegisterSnapshotsServer(gs, s)
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return nil
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}
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func (s *service) Prepare(ctx context.Context, pr *snapshotsapi.PrepareSnapshotRequest) (*snapshotsapi.PrepareSnapshotResponse, error) {
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log.G(ctx).WithField("parent", pr.Parent).WithField("key", pr.Key).Debugf("prepare snapshot")
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sn, err := s.getSnapshotter(pr.Snapshotter)
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if err != nil {
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return nil, err
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}
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var opts []snapshots.Opt
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if pr.Labels != nil {
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opts = append(opts, snapshots.WithLabels(pr.Labels))
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}
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mounts, err := sn.Prepare(ctx, pr.Key, pr.Parent, opts...)
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if err != nil {
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return nil, errdefs.ToGRPC(err)
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}
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return &snapshotsapi.PrepareSnapshotResponse{
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Mounts: mount.ToProto(mounts),
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}, nil
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}
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func (s *service) View(ctx context.Context, pr *snapshotsapi.ViewSnapshotRequest) (*snapshotsapi.ViewSnapshotResponse, error) {
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log.G(ctx).WithField("parent", pr.Parent).WithField("key", pr.Key).Debugf("prepare view snapshot")
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sn, err := s.getSnapshotter(pr.Snapshotter)
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if err != nil {
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return nil, err
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}
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var opts []snapshots.Opt
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if pr.Labels != nil {
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opts = append(opts, snapshots.WithLabels(pr.Labels))
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}
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mounts, err := sn.View(ctx, pr.Key, pr.Parent, opts...)
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if err != nil {
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return nil, errdefs.ToGRPC(err)
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}
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return &snapshotsapi.ViewSnapshotResponse{
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Mounts: mount.ToProto(mounts),
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}, nil
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}
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func (s *service) Mounts(ctx context.Context, mr *snapshotsapi.MountsRequest) (*snapshotsapi.MountsResponse, error) {
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log.G(ctx).WithField("key", mr.Key).Debugf("get snapshot mounts")
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sn, err := s.getSnapshotter(mr.Snapshotter)
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if err != nil {
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return nil, err
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}
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mounts, err := sn.Mounts(ctx, mr.Key)
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if err != nil {
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return nil, errdefs.ToGRPC(err)
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}
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return &snapshotsapi.MountsResponse{
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Mounts: mount.ToProto(mounts),
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}, nil
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}
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func (s *service) Commit(ctx context.Context, cr *snapshotsapi.CommitSnapshotRequest) (*ptypes.Empty, error) {
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log.G(ctx).WithField("key", cr.Key).WithField("name", cr.Name).Debugf("commit snapshot")
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sn, err := s.getSnapshotter(cr.Snapshotter)
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if err != nil {
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return nil, err
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}
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var opts []snapshots.Opt
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if cr.Labels != nil {
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opts = append(opts, snapshots.WithLabels(cr.Labels))
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}
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if err := sn.Commit(ctx, cr.Name, cr.Key, opts...); err != nil {
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return nil, errdefs.ToGRPC(err)
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}
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return empty, nil
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}
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func (s *service) Remove(ctx context.Context, rr *snapshotsapi.RemoveSnapshotRequest) (*ptypes.Empty, error) {
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log.G(ctx).WithField("key", rr.Key).Debugf("remove snapshot")
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sn, err := s.getSnapshotter(rr.Snapshotter)
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if err != nil {
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return nil, err
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}
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if err := sn.Remove(ctx, rr.Key); err != nil {
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return nil, errdefs.ToGRPC(err)
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}
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return empty, nil
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}
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func (s *service) Stat(ctx context.Context, sr *snapshotsapi.StatSnapshotRequest) (*snapshotsapi.StatSnapshotResponse, error) {
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log.G(ctx).WithField("key", sr.Key).Debugf("stat snapshot")
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sn, err := s.getSnapshotter(sr.Snapshotter)
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if err != nil {
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return nil, err
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}
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info, err := sn.Stat(ctx, sr.Key)
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if err != nil {
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return nil, errdefs.ToGRPC(err)
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}
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return &snapshotsapi.StatSnapshotResponse{Info: snapshots.InfoToProto(info)}, nil
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}
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func (s *service) Update(ctx context.Context, sr *snapshotsapi.UpdateSnapshotRequest) (*snapshotsapi.UpdateSnapshotResponse, error) {
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log.G(ctx).WithField("key", sr.Info.Name).Debugf("update snapshot")
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sn, err := s.getSnapshotter(sr.Snapshotter)
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if err != nil {
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return nil, err
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}
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info, err := sn.Update(ctx, snapshots.InfoFromProto(sr.Info), sr.UpdateMask.GetPaths()...)
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if err != nil {
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return nil, errdefs.ToGRPC(err)
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}
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return &snapshotsapi.UpdateSnapshotResponse{Info: snapshots.InfoToProto(info)}, nil
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}
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func (s *service) List(sr *snapshotsapi.ListSnapshotsRequest, ss snapshotsapi.Snapshots_ListServer) error {
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sn, err := s.getSnapshotter(sr.Snapshotter)
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if err != nil {
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return err
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}
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var (
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buffer []*snapshotsapi.Info
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sendBlock = func(block []*snapshotsapi.Info) error {
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return ss.Send(&snapshotsapi.ListSnapshotsResponse{
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Info: block,
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})
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}
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)
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err = sn.Walk(ss.Context(), func(ctx context.Context, info snapshots.Info) error {
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buffer = append(buffer, snapshots.InfoToProto(info))
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if len(buffer) >= 100 {
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if err := sendBlock(buffer); err != nil {
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return err
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}
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buffer = buffer[:0]
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}
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return nil
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}, sr.Filters...)
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if err != nil {
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return err
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}
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if len(buffer) > 0 {
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// Send remaining infos
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if err := sendBlock(buffer); err != nil {
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return err
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}
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}
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return nil
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}
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func (s *service) Usage(ctx context.Context, ur *snapshotsapi.UsageRequest) (*snapshotsapi.UsageResponse, error) {
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sn, err := s.getSnapshotter(ur.Snapshotter)
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if err != nil {
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return nil, err
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}
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usage, err := sn.Usage(ctx, ur.Key)
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if err != nil {
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return nil, errdefs.ToGRPC(err)
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}
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return snapshots.UsageToProto(usage), nil
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}
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func (s *service) Cleanup(ctx context.Context, cr *snapshotsapi.CleanupRequest) (*ptypes.Empty, error) {
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sn, err := s.getSnapshotter(cr.Snapshotter)
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if err != nil {
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return nil, err
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}
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c, ok := sn.(snapshots.Cleaner)
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if !ok {
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return nil, errdefs.ToGRPCf(errdefs.ErrNotImplemented, "snapshotter does not implement Cleanup method")
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}
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err = c.Cleanup(ctx)
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if err != nil {
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return nil, errdefs.ToGRPC(err)
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}
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return empty, nil
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}
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43
plugins/services/snapshots/snapshotters.go
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43
plugins/services/snapshots/snapshotters.go
Normal file
@@ -0,0 +1,43 @@
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/*
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Copyright The containerd Authors.
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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 snapshots
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import (
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"github.com/containerd/containerd/v2/core/metadata"
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"github.com/containerd/containerd/v2/plugins"
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"github.com/containerd/containerd/v2/plugins/services"
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"github.com/containerd/plugin"
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"github.com/containerd/plugin/registry"
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)
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func init() {
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registry.Register(&plugin.Registration{
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Type: plugins.ServicePlugin,
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ID: services.SnapshotsService,
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Requires: []plugin.Type{
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plugins.MetadataPlugin,
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},
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InitFn: func(ic *plugin.InitContext) (interface{}, error) {
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m, err := ic.GetSingle(plugins.MetadataPlugin)
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if err != nil {
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return nil, err
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}
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return m.(*metadata.DB).Snapshotters(), nil
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},
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})
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}
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Reference in New Issue
Block a user