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bucket.go
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bucket.go
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/*
* Copyright 2018-2019, CS Systemes d'Information, http://www.c-s.fr
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package listeners
import (
"context"
"fmt"
google_protobuf "github.com/golang/protobuf/ptypes/empty"
"github.com/sirupsen/logrus"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
pb "github.com/CS-SI/SafeScale/lib"
"github.com/CS-SI/SafeScale/lib/server/handlers"
conv "github.com/CS-SI/SafeScale/lib/server/utils"
srvutils "github.com/CS-SI/SafeScale/lib/server/utils"
"github.com/CS-SI/SafeScale/lib/utils/concurrency"
"github.com/CS-SI/SafeScale/lib/utils/scerr"
)
// BucketHandler ...
var BucketHandler = handlers.NewBucketHandler
// safescale bucket create c1
// safescale bucket mount c1 host1 --path="/shared/data" (utilisation de s3ql, par default /buckets/c1)
// safescale bucket umount c1 host1
// safescale bucket delete c1
// safescale bucket list
// safescale bucket inspect C1
// BucketListener is the bucket service grpc server
type BucketListener struct{}
// List available buckets
func (s *BucketListener) List(ctx context.Context, in *google_protobuf.Empty) (bl *pb.BucketList, err error) {
tracer := concurrency.NewTracer(nil, "", true).WithStopwatch().GoingIn()
defer tracer.OnExitTrace()()
defer scerr.OnExitLogError(tracer.TraceMessage(""), &err)()
ctx, cancelFunc := context.WithCancel(ctx)
if err := srvutils.JobRegister(ctx, cancelFunc, "Bucket List"); err == nil {
defer srvutils.JobDeregister(ctx)
}
tenant := GetCurrentTenant()
if tenant == nil {
logrus.Info("Can't list buckets: no tenant set")
return nil, status.Errorf(codes.FailedPrecondition, "cannot list buckets: no tenant set")
}
handler := BucketHandler(tenant.Service)
buckets, err := handler.List(ctx)
if err != nil {
tbr := scerr.Wrap(err, "Can't list buckets")
return nil, status.Errorf(codes.Internal, tbr.Error())
}
return conv.ToPBBucketList(buckets), nil
}
// Create a new bucket
func (s *BucketListener) Create(ctx context.Context, in *pb.Bucket) (empty *google_protobuf.Empty, err error) {
bucketName := in.GetName()
tracer := concurrency.NewTracer(nil, fmt.Sprintf("('%s')", bucketName), true).WithStopwatch().GoingIn()
defer tracer.OnExitTrace()()
defer scerr.OnExitLogError(tracer.TraceMessage(""), &err)()
ctx, cancelFunc := context.WithCancel(ctx)
if err := srvutils.JobRegister(ctx, cancelFunc, "Bucket Create : "+bucketName); err != nil {
return nil, status.Errorf(codes.FailedPrecondition, fmt.Errorf("failed to register the process : %s", err.Error()).Error())
}
tenant := GetCurrentTenant()
if tenant == nil {
logrus.Info("Can't create bucket: no tenant set")
return nil, status.Errorf(codes.FailedPrecondition, "cannot create bucket: no tenant set")
}
handler := BucketHandler(tenant.Service)
err = handler.Create(ctx, bucketName)
if err != nil {
tbr := scerr.Wrap(err, "cannot create bucket")
return nil, status.Errorf(codes.Internal, tbr.Error())
}
return &google_protobuf.Empty{}, nil
}
// Delete a bucket
func (s *BucketListener) Delete(ctx context.Context, in *pb.Bucket) (empty *google_protobuf.Empty, err error) {
bucketName := in.GetName()
tracer := concurrency.NewTracer(nil, fmt.Sprintf("('%s')", bucketName), true).WithStopwatch().GoingIn()
defer tracer.OnExitTrace()()
defer scerr.OnExitLogError(tracer.TraceMessage(""), &err)()
ctx, cancelFunc := context.WithCancel(ctx)
if err := srvutils.JobRegister(ctx, cancelFunc, "Bucket Delete : "+bucketName); err != nil {
return nil, status.Errorf(codes.FailedPrecondition, fmt.Errorf("failed to register the process : %s", err.Error()).Error())
}
tenant := GetCurrentTenant()
if tenant == nil {
logrus.Info("Can't delete buckets: no tenant set")
return nil, status.Errorf(codes.FailedPrecondition, "cannot delete bucket: no tenant set")
}
handler := BucketHandler(tenant.Service)
err = handler.Delete(ctx, bucketName)
if err != nil {
tbr := scerr.Wrap(err, "cannot delete bucket")
return nil, status.Errorf(codes.Internal, tbr.Error())
}
return &google_protobuf.Empty{}, nil
}
// Inspect a bucket
func (s *BucketListener) Inspect(ctx context.Context, in *pb.Bucket) (bmp *pb.BucketMountingPoint, err error) {
bucketName := in.GetName()
tracer := concurrency.NewTracer(nil, fmt.Sprintf("('%s')", bucketName), true).WithStopwatch().GoingIn()
defer tracer.OnExitTrace()()
defer scerr.OnExitLogError(tracer.TraceMessage(""), &err)()
ctx, cancelFunc := context.WithCancel(ctx)
if err := srvutils.JobRegister(ctx, cancelFunc, "Bucket Inspect : "+in.GetName()); err != nil {
return nil, status.Errorf(codes.FailedPrecondition, fmt.Errorf("failed to register the process : %s", err.Error()).Error())
}
tenant := GetCurrentTenant()
if tenant == nil {
logrus.Info("Can't inspect bucket: no tenant set")
return nil, status.Errorf(codes.FailedPrecondition, "cannot inspect bucket: no tenant set")
}
handler := BucketHandler(tenant.Service)
resp, err := handler.Inspect(ctx, bucketName)
if err != nil {
tbr := scerr.Wrap(err, "cannot inspect bucket")
return nil, status.Errorf(codes.Internal, tbr.Error())
}
if resp == nil {
return nil, status.Errorf(codes.NotFound, "cannot inspect bucket '%s': not found", in.GetName())
}
return conv.ToPBBucketMountPoint(resp), nil
}
// Mount a bucket on the filesystem of the host
func (s *BucketListener) Mount(ctx context.Context, in *pb.BucketMountingPoint) (empty *google_protobuf.Empty, err error) {
bucketName := in.GetBucket()
hostName := in.GetHost().GetName()
tracer := concurrency.NewTracer(nil, fmt.Sprintf("('%s', '%s')", bucketName, hostName), true).WithStopwatch().GoingIn()
defer tracer.OnExitTrace()()
defer scerr.OnExitLogError(tracer.TraceMessage(""), &err)()
ctx, cancelFunc := context.WithCancel(ctx)
if err := srvutils.JobRegister(ctx, cancelFunc, "Bucket Mount : "+bucketName+" on "+hostName); err != nil {
return nil, status.Errorf(codes.FailedPrecondition, fmt.Errorf("failed to register the process : %s", err.Error()).Error())
}
tenant := GetCurrentTenant()
if tenant == nil {
logrus.Info("Can't mount buckets: no tenant set")
return nil, status.Errorf(codes.FailedPrecondition, "cannot mount bucket: no tenant set")
}
handler := BucketHandler(tenant.Service)
err = handler.Mount(ctx, bucketName, hostName, in.GetPath())
if err != nil {
return &google_protobuf.Empty{}, status.Errorf(codes.Internal, err.Error())
}
return &google_protobuf.Empty{}, nil
}
// Unmount a bucket from the filesystem of the host
func (s *BucketListener) Unmount(ctx context.Context, in *pb.BucketMountingPoint) (empty *google_protobuf.Empty, err error) {
bucketName := in.GetBucket()
hostName := in.GetHost().GetName()
tracer := concurrency.NewTracer(nil, fmt.Sprintf("('%s', '%s')", bucketName, hostName), true).WithStopwatch().GoingIn()
defer tracer.OnExitTrace()()
defer scerr.OnExitLogError(tracer.TraceMessage(""), &err)()
ctx, cancelFunc := context.WithCancel(ctx)
if err := srvutils.JobRegister(ctx, cancelFunc, "Bucket Unmount : "+bucketName+" off "+hostName); err != nil {
return nil, status.Errorf(codes.FailedPrecondition, fmt.Errorf("failed to register the process : %s", err.Error()).Error())
}
tenant := GetCurrentTenant()
if tenant == nil {
logrus.Info("Can't unmount bucket: no tenant set")
return nil, status.Errorf(codes.FailedPrecondition, "cannot unmount bucket: no tenant set")
}
handler := BucketHandler(tenant.Service)
err = handler.Unmount(ctx, bucketName, hostName)
if err != nil {
return &google_protobuf.Empty{}, status.Errorf(codes.Internal, err.Error())
}
return &google_protobuf.Empty{}, nil
}