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operations.go
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operations.go
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// Copyright 2024 Google LLC
//
// 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 mockcompute
import (
"context"
"fmt"
"time"
pb "github.com/GoogleCloudPlatform/k8s-config-connector/mockgcp/generated/mockgcp/cloud/compute/v1"
"google.golang.org/protobuf/proto"
"k8s.io/apimachinery/pkg/util/uuid"
"k8s.io/klog/v2"
"github.com/GoogleCloudPlatform/k8s-config-connector/mockgcp/pkg/storage"
)
type computeOperations struct {
storage storage.Storage
}
func newComputeOperationsService(storage storage.Storage) *computeOperations {
return &computeOperations{
storage: storage,
}
}
func (s *computeOperations) globalOperationFQN(projectID string, name string) string {
return "projects/" + projectID + "/global/operations/" + name
}
func (s *computeOperations) regionalOperationFQN(projectID string, region string, name string) string {
return "projects/" + projectID + "/regions/" + region + "/operations/" + name
}
// Deprecated: use startGlobalLRO
func (s *computeOperations) newLRO(ctx context.Context, projectID string) (*pb.Operation, error) {
log := klog.FromContext(ctx)
now := time.Now()
millis := now.UnixMilli()
id := string(uuid.NewUUID())
nanos := now.UnixNano()
op := &pb.Operation{}
op.StartTime = PtrTo(formatTime(now))
op.InsertTime = PtrTo(formatTime(now))
op.Id = PtrTo(uint64(nanos))
op.Progress = PtrTo(int32(0))
name := fmt.Sprintf("operation-%d-%s", millis, id)
op.Name = PtrTo(name)
op.Kind = PtrTo("compute#operation")
fqn := s.globalOperationFQN(projectID, name)
op.SelfLink = PtrTo("https://compute.googleapis.com/compute/v1/" + fqn)
op.Status = PtrTo(pb.Operation_DONE)
log.Info("storing operation", "fqn", fqn)
if err := s.storage.Create(ctx, fqn, op); err != nil {
return nil, err
}
return op, nil
}
func (s *computeOperations) startLRO0(ctx context.Context, op *pb.Operation, fqn string, callback func() (proto.Message, error)) (*pb.Operation, error) {
log := klog.FromContext(ctx)
now := time.Now()
nanos := now.UnixNano()
if op == nil {
op = &pb.Operation{}
}
op.StartTime = PtrTo(formatTime(now))
op.InsertTime = PtrTo(formatTime(now))
op.Id = PtrTo(uint64(nanos))
op.Progress = PtrTo(int32(0))
op.Kind = PtrTo("compute#operation")
op.SelfLink = PtrTo("https://compute.googleapis.com/compute/v1/" + fqn)
op.Status = PtrTo(pb.Operation_RUNNING)
log.Info("storing operation", "fqn", fqn)
if err := s.storage.Create(ctx, fqn, op); err != nil {
return nil, err
}
go func() {
result, err := callback()
finished := &pb.Operation{}
if err2 := s.storage.Get(ctx, fqn, finished); err2 != nil {
klog.Warningf("error getting LRO: %v", err2)
return
}
finished.Progress = PtrTo(int32(100))
finished.Status = PtrTo(pb.Operation_DONE)
finished.EndTime = PtrTo(formatTime(time.Now()))
if err != nil {
klog.Warningf("TODO: handle LRO error %v", err)
} else {
klog.Warningf("TODO: handle LRO result %v", result)
}
if err := s.storage.Update(ctx, fqn, finished); err != nil {
klog.Warningf("error updating LRO: %v", err)
return
}
}()
return op, nil
}
func (s *computeOperations) startRegionalLRO(ctx context.Context, projectID string, region string, op *pb.Operation, callback func() (proto.Message, error)) (*pb.Operation, error) {
now := time.Now()
millis := now.UnixMilli()
id := uuid.NewUUID()
name := fmt.Sprintf("operation-%d-%s", millis, id)
fqn := s.regionalOperationFQN(projectID, region, name)
op.Name = PtrTo(name)
return s.startLRO0(ctx, op, fqn, callback)
}
func (s *computeOperations) startGlobalLRO(ctx context.Context, projectID string, op *pb.Operation, callback func() (proto.Message, error)) (*pb.Operation, error) {
now := time.Now()
millis := now.UnixMilli()
id := uuid.NewUUID()
name := fmt.Sprintf("operation-%d-%s", millis, id)
fqn := s.globalOperationFQN(projectID, name)
op.Name = PtrTo(name)
return s.startLRO0(ctx, op, fqn, callback)
}
// Gets the latest state of a long-running operation. Clients can use this
// method to poll the operation result at intervals as recommended by the API
// service.
func (s *computeOperations) getOperation(ctx context.Context, fqn string) (*pb.Operation, error) {
op := &pb.Operation{}
if err := s.storage.Get(ctx, fqn, op); err != nil {
return nil, err
}
return op, nil
}
func formatTime(t time.Time) string {
return t.Format(time.RFC3339)
}