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pug2pug

Cloud Dataflowを使って、Cloud DatastoreのMigrationを行う。 単純にDatastoreのデータを引っ越すだけなら、 Cloud Datastore Import/Export を使ったほうがよい。

存在する機能

  • Datastoreを別プロジェクトにお引っ越し
  • EntityのProperty名の変更

未対応

  • Datastore Namespace
  • Entity Filter

IAM

どのProjectでDataflowを起動するかによりけりなので、Datastore移行先のProjectで動かす場合について以下に記す

Datastore移行元のProjectのIAMに、Datastore移行先のProjectのDataflowのサービスアカウントを datastore.user として追加する

  • {target project number}[email protected]
  • {target project number}@cloudservices.gserviceaccount.com

DataflowのIAMについては https://cloud.google.com/dataflow/security-and-permissions?hl=ja#cloud-platform--cloud-datastore- を参考にする

Run

mvn compile exec:java -Dexec.mainClass=org.sinmetal.beam.ds2ds.DatastoreToDatastore -Dexec.args="--runner=DataflowRunner --project={source project id} \
     --inputKinds={カンマ区切りのKind一覧 example : hoge,fuga,moge} \
     --inputProjectId={source project id} --outputProjectId={target project id} --tempLocation={tmp cloud storage bucket}" -Pdataflow-runner

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