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change_default_storage_class.go
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/
change_default_storage_class.go
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// Copyright 2020 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 buckets
// [START storage_change_default_storage_class]
import (
"context"
"fmt"
"io"
"time"
"cloud.google.com/go/storage"
)
// changeDefaultStorageClass changes the storage class on a bucket.
func changeDefaultStorageClass(w io.Writer, bucketName string) error {
// bucketName := "bucket-name"
ctx := context.Background()
client, err := storage.NewClient(ctx)
if err != nil {
return fmt.Errorf("storage.NewClient: %v", err)
}
defer client.Close()
ctx, cancel := context.WithTimeout(ctx, time.Second*10)
defer cancel()
bucket := client.Bucket(bucketName)
// See the StorageClass documentation for other valid storage classes:
// https://cloud.google.com/storage/docs/storage-classes
newStorageClass := "COLDLINE"
bucketAttrsToUpdate := storage.BucketAttrsToUpdate{
StorageClass: newStorageClass,
}
if _, err := bucket.Update(ctx, bucketAttrsToUpdate); err != nil {
return fmt.Errorf("Bucket(%q).Update: %v", bucketName, err)
}
fmt.Fprintf(w, "Default storage class for bucket %v has been set to %v\n", bucketName, newStorageClass)
return nil
}
// [END storage_change_default_storage_class]