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start_instance_with_enc_key.go
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start_instance_with_enc_key.go
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// Copyright 2021 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
//
// https://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 snippets
// [START compute_start_enc_instance]
import (
"context"
"fmt"
"io"
compute "cloud.google.com/go/compute/apiv1"
computepb "cloud.google.com/go/compute/apiv1/computepb"
"google.golang.org/protobuf/proto"
)
// startInstanceWithEncKey starts a stopped Google Compute Engine instance (with encrypted disks).
func startInstanceWithEncKey(w io.Writer, projectID, zone, instanceName, key string) error {
// projectID := "your_project_id"
// zone := "europe-central2-b"
// instanceName := "your_instance_name"
// key := "your_encryption_key"
ctx := context.Background()
instancesClient, err := compute.NewInstancesRESTClient(ctx)
if err != nil {
return fmt.Errorf("NewInstancesRESTClient: %w", err)
}
defer instancesClient.Close()
instanceReq := &computepb.GetInstanceRequest{
Project: projectID,
Zone: zone,
Instance: instanceName,
}
instance, err := instancesClient.Get(ctx, instanceReq)
if err != nil {
return fmt.Errorf("unable to get instance: %w", err)
}
req := &computepb.StartWithEncryptionKeyInstanceRequest{
Project: projectID,
Zone: zone,
Instance: instanceName,
InstancesStartWithEncryptionKeyRequestResource: &computepb.InstancesStartWithEncryptionKeyRequest{
Disks: []*computepb.CustomerEncryptionKeyProtectedDisk{
{
Source: proto.String(instance.GetDisks()[0].GetSource()),
DiskEncryptionKey: &computepb.CustomerEncryptionKey{
RawKey: proto.String(key),
},
},
},
},
}
op, err := instancesClient.StartWithEncryptionKey(ctx, req)
if err != nil {
return fmt.Errorf("unable to start instance with encryption key: %w", err)
}
if err = op.Wait(ctx); err != nil {
return fmt.Errorf("unable to wait for the operation: %w", err)
}
fmt.Fprintf(w, "Instance with encryption key started\n")
return nil
}
// [END compute_start_enc_instance]