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日本語は機械翻訳による参考訳です。内容に矛盾や不一致があった場合には、英語の内容が優先されます。

Google Cloudで画像をRAW形式に変換します

共同作成者

新しいインスタンスの導入、アップグレード、または既存のイメージで使用されているイメージは、を通じてクライアントと共有されます "NetApp Support Site （NSS）"。署名済みダイジェストと証明書は、NSSポータルからダウンロードできます。ネットアップサポートが共有しているイメージに対応する、適切なリリースのダイジェストと証明書をダウンロードしていることを確認してください。たとえば、9.13.0イメージには、9.13.0署名付きダイジェストとNSSで使用できる証明書があります。

この手順が必要なのはなぜですか？

Google Cloudからの画像は直接ダウンロードできません。署名済みダイジェストと証明書と照合してイメージを検証するには、2つのファイルを比較してイメージをダウンロードするメカニズムが必要です。これを行うには、画像をdisk.raw形式にエクスポート/変換し、結果をGoogle Cloudのストレージバケットに保存する必要があります。disk.rawファイルは、処理中にtarredおよびgzipされます。

ユーザ/サービスアカウントには、次の操作を実行するための権限が必要です。

  • Googleストレージバケットへのアクセス

  • Google Storageバケットに書き込みます

  • クラウドビルドジョブの作成（エクスポートプロセスで使用）

  • 目的の画像へのアクセス

  • イメージのエクスポートタスクを作成します

イメージを検証するには、disk.raw形式に変換してからダウンロードする必要があります。

Google Cloudのコマンドラインを使用して、Google Cloudイメージをエクスポートします

Cloud Storageにイメージをエクスポートする場合は、を使用することを推奨します "gcloud compute images exportコマンド"。このコマンドは、提供されたイメージを取得し、tarredおよびgzipされるdisk.rawファイルに変換します。生成されたファイルは保存先URLに保存され、ダウンロードして検証することができます。

この処理を実行するには、ユーザ/アカウントに目的のバケットへのアクセスと書き込み、イメージのエクスポート、およびクラウドビルド（Googleがイメージのエクスポートに使用）の権限が必要です。

  • gcloud *を使用してGoogle Cloudイメージをエクスポートします

をクリックしてスクリプトを表示します 
$ gcloud compute images export \
    --destination-uri DESTINATION_URI \
    --image IMAGE_NAME

# For our example:
$ gcloud compute images export \
    --destination-uri gs://vsa-dev-bucket1/example-user-exportimage-gcp-demo \
    --image example-user-20230120115139


## DEMO ##
# Step 1 - Optional: Checking access and listing objects in the destination bucket
$ gsutil ls gs://example-user-export-image-bucket/

# Step 2 - Exporting the desired image to the bucket
$ gcloud compute images export --image example-user-export-image-demo --destination-uri gs://example-user-export-image-bucket/export-demo.tar.gz
Created [https://cloudbuild.googleapis.com/v1/projects/example-demo-project/locations/us-central1/builds/xxxxxxxxxxxx].
Logs are available at [https://console.cloud.google.com/cloud-build/builds;region=us-central1/xxxxxxxxxxxx?project=xxxxxxxxxxxx].
[image-export]: 2023-01-25T18:13:48Z Fetching image "example-user-export-image-demo" from project "example-demo-project".
[image-export]: 2023-01-25T18:13:49Z Validating workflow
[image-export]: 2023-01-25T18:13:49Z Validating step "setup-disks"
[image-export]: 2023-01-25T18:13:49Z Validating step "image-export-export-disk"
[image-export.image-export-export-disk]: 2023-01-25T18:13:49Z Validating step "setup-disks"
[image-export.image-export-export-disk]: 2023-01-25T18:13:49Z Validating step "run-image-export-export-disk"
[image-export.image-export-export-disk]: 2023-01-25T18:13:50Z Validating step "wait-for-inst-image-export-export-disk"
[image-export.image-export-export-disk]: 2023-01-25T18:13:50Z Validating step "copy-image-object"
[image-export.image-export-export-disk]: 2023-01-25T18:13:50Z Validating step "delete-inst"
[image-export]: 2023-01-25T18:13:51Z Validation Complete
[image-export]: 2023-01-25T18:13:51Z Workflow Project: example-demo-project
[image-export]: 2023-01-25T18:13:51Z Workflow Zone: us-central1-c
[image-export]: 2023-01-25T18:13:51Z Workflow GCSPath: gs://example-demo-project-example-bkt-us/
[image-export]: 2023-01-25T18:13:51Z Example scratch path: https://console.cloud.google.com/storage/browser/example-demo-project-example-bkt-us/example-image-export-20230125-18:13:49-r88px
[image-export]: 2023-01-25T18:13:51Z Uploading sources
[image-export]: 2023-01-25T18:13:51Z Running workflow
[image-export]: 2023-01-25T18:13:51Z Running step "setup-disks" (CreateDisks)
[image-export.setup-disks]: 2023-01-25T18:13:51Z CreateDisks: Creating disk "disk-image-export-image-export-r88px".
[image-export]: 2023-01-25T18:14:02Z Step "setup-disks" (CreateDisks) successfully finished.
[image-export]: 2023-01-25T18:14:02Z Running step "image-export-export-disk" (IncludeWorkflow)
[image-export.image-export-export-disk]: 2023-01-25T18:14:02Z Running step "setup-disks" (CreateDisks)
[image-export.image-export-export-disk.setup-disks]: 2023-01-25T18:14:02Z CreateDisks: Creating disk "disk-image-export-export-disk-image-export-image-export--r88px".
[image-export.image-export-export-disk]: 2023-01-25T18:14:02Z Step "setup-disks" (CreateDisks) successfully finished.
[image-export.image-export-export-disk]: 2023-01-25T18:14:02Z Running step "run-image-export-export-disk" (CreateInstances)
[image-export.image-export-export-disk.run-image-export-export-disk]: 2023-01-25T18:14:02Z CreateInstances: Creating instance "inst-image-export-export-disk-image-export-image-export--r88px".
[image-export.image-export-export-disk]: 2023-01-25T18:14:08Z Step "run-image-export-export-disk" (CreateInstances) successfully finished.
[image-export.image-export-export-disk.run-image-export-export-disk]: 2023-01-25T18:14:08Z CreateInstances: Streaming instance "inst-image-export-export-disk-image-export-image-export--r88px" serial port 1 output to https://storage.cloud.google.com/example-demo-project-example-bkt-us/example-image-export-20230125-18:13:49-r88px/logs/inst-image-export-export-disk-image-export-image-export--r88px-serial-port1.log
[image-export.image-export-export-disk]: 2023-01-25T18:14:08Z Running step "wait-for-inst-image-export-export-disk" (WaitForInstancesSignal)
[image-export.image-export-export-disk.wait-for-inst-image-export-export-disk]: 2023-01-25T18:14:08Z WaitForInstancesSignal: Instance "inst-image-export-export-disk-image-export-image-export--r88px": watching serial port 1, SuccessMatch: "ExportSuccess", FailureMatch: ["ExportFailed:"] (this is not an error), StatusMatch: "GCEExport:".
[image-export.image-export-export-disk.wait-for-inst-image-export-export-disk]: 2023-01-25T18:14:29Z WaitForInstancesSignal: Instance "inst-image-export-export-disk-image-export-image-export--r88px": StatusMatch found: "GCEExport: <serial-output key:'source-size-gb' value:'10'>"
[image-export.image-export-export-disk.wait-for-inst-image-export-export-disk]: 2023-01-25T18:14:29Z WaitForInstancesSignal: Instance "inst-image-export-export-disk-image-export-image-export--r88px": StatusMatch found: "GCEExport: Running export tool."
[image-export.image-export-export-disk.wait-for-inst-image-export-export-disk]: 2023-01-25T18:14:29Z WaitForInstancesSignal: Instance "inst-image-export-export-disk-image-export-image-export--r88px": StatusMatch found: "GCEExport: Disk /dev/sdb is 10 GiB, compressed size will most likely be much smaller."
[image-export.image-export-export-disk.wait-for-inst-image-export-export-disk]: 2023-01-25T18:14:29Z WaitForInstancesSignal: Instance "inst-image-export-export-disk-image-export-image-export--r88px": StatusMatch found: "GCEExport: Beginning export process..."
[image-export.image-export-export-disk.wait-for-inst-image-export-export-disk]: 2023-01-25T18:14:29Z WaitForInstancesSignal: Instance "inst-image-export-export-disk-image-export-image-export--r88px": StatusMatch found: "GCEExport: Copying \"/dev/sdb\" to gs://example-demo-project-example-bkt-us/example-image-export-20230125-18:13:49-r88px/outs/image-export-export-disk.tar.gz."
[image-export.image-export-export-disk.wait-for-inst-image-export-export-disk]: 2023-01-25T18:14:29Z WaitForInstancesSignal: Instance "inst-image-export-export-disk-image-export-image-export--r88px": StatusMatch found: "GCEExport: Using \"/root/upload\" as the buffer prefix, 1.0 GiB as the buffer size, and 4 as the number of workers."
[image-export.image-export-export-disk.wait-for-inst-image-export-export-disk]: 2023-01-25T18:14:29Z WaitForInstancesSignal: Instance "inst-image-export-export-disk-image-export-image-export--r88px": StatusMatch found: "GCEExport: Creating gzipped image of \"/dev/sdb\"."
[image-export.image-export-export-disk.wait-for-inst-image-export-export-disk]: 2023-01-25T18:14:29Z WaitForInstancesSignal: Instance "inst-image-export-export-disk-image-export-image-export--r88px": StatusMatch found: "GCEExport: Read 1.0 GiB of 10 GiB (212 MiB/sec), total written size: 992 MiB (198 MiB/sec)"
[image-export.image-export-export-disk.wait-for-inst-image-export-export-disk]: 2023-01-25T18:14:59Z WaitForInstancesSignal: Instance "inst-image-export-export-disk-image-export-image-export--r88px": StatusMatch found: "GCEExport: Read 8.0 GiB of 10 GiB (237 MiB/sec), total written size: 1.5 GiB (17 MiB/sec)"
[image-export.image-export-export-disk.wait-for-inst-image-export-export-disk]: 2023-01-25T18:15:19Z WaitForInstancesSignal: Instance "inst-image-export-export-disk-image-export-image-export--r88px": StatusMatch found: "GCEExport: Finished creating gzipped image of \"/dev/sdb\" in 48.956433327s [213 MiB/s] with a compression ratio of 6."
[image-export.image-export-export-disk.wait-for-inst-image-export-export-disk]: 2023-01-25T18:15:19Z WaitForInstancesSignal: Instance "inst-image-export-export-disk-image-export-image-export--r88px": StatusMatch found: "GCEExport: Finished export in  48.957347731s"
[image-export.image-export-export-disk.wait-for-inst-image-export-export-disk]: 2023-01-25T18:15:19Z WaitForInstancesSignal: Instance "inst-image-export-export-disk-image-export-image-export--r88px": StatusMatch found: "GCEExport: <serial-output key:'target-size-gb' value:'2'>"
[image-export.image-export-export-disk.wait-for-inst-image-export-export-disk]: 2023-01-25T18:15:19Z WaitForInstancesSignal: Instance "inst-image-export-export-disk-image-export-image-export--r88px": SuccessMatch found "ExportSuccess"
[image-export.image-export-export-disk]: 2023-01-25T18:15:19Z Step "wait-for-inst-image-export-export-disk" (WaitForInstancesSignal) successfully finished.
[image-export.image-export-export-disk]: 2023-01-25T18:15:19Z Running step "copy-image-object" (CopyGCSObjects)
[image-export.image-export-export-disk]: 2023-01-25T18:15:19Z Running step "delete-inst" (DeleteResources)
[image-export.image-export-export-disk.delete-inst]: 2023-01-25T18:15:19Z DeleteResources: Deleting instance "inst-image-export-export-disk".
[image-export.image-export-export-disk]: 2023-01-25T18:15:19Z Step "copy-image-object" (CopyGCSObjects) successfully finished.
[image-export.image-export-export-disk]: 2023-01-25T18:15:34Z Step "delete-inst" (DeleteResources) successfully finished.
[image-export]: 2023-01-25T18:15:34Z Step "image-export-export-disk" (IncludeWorkflow) successfully finished.
[image-export]: 2023-01-25T18:15:34Z Serial-output value -> source-size-gb:10
[image-export]: 2023-01-25T18:15:34Z Serial-output value -> target-size-gb:2
[image-export]: 2023-01-25T18:15:34Z Workflow "image-export" cleaning up (this may take up to 2 minutes).
[image-export]: 2023-01-25T18:15:35Z Workflow "image-export" finished cleanup.

# Step 3 - Validating the image was successfully exported
$ gsutil ls gs://example-user-export-image-bucket/
gs://example-user-export-image-bucket/export-demo.tar.gz


# Step 4 - Download the exported image
$ gcloud storage cp gs://BUCKET_NAME/OBJECT_NAME SAVE_TO_LOCATION

$ gcloud storage cp gs://example-user-export-image-bucket/export-demo.tar.gz CVO_GCP_Signed_Digest.tar.gz
Copying gs://example-user-export-image-bucket/export-demo.tar.gz to file://CVO_GCP_Signed_Digest.tar.gz
  Completed files 1/1 | 1.5GiB/1.5GiB | 185.0MiB/s

Average throughput: 213.3MiB/s
$ ls -l
total 1565036
-rw-r--r-- 1 example-user example-user 1602589949 Jan 25 18:44 CVO_GCP_Signed_Digest.tar.gz

圧縮されたファイルを抽出します

# Extracting files from the digest
$ tar -xf CVO_GCP_Signed_Digest.tar.gz
メモ を参照してください "画像のエクスポートに関するGoogle Cloudドキュメント" Google Cloudを使用して画像をエクスポートする方法の詳細については、を参照してください。