ADLSToGCSOperator

Google

Synchronizes an Azure Data Lake Storage path with a GCS bucket

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Last Updated: Jan. 23, 2023

Access Instructions

Install the Google provider package into your Airflow environment.

Import the module into your DAG file and instantiate it with your desired params.

Parameters

Documentation

Connections

Parameters

src_adlsRequiredThe Azure Data Lake path to find the objects (templated)

dest_gcsRequiredThe Google Cloud Storage bucket and prefix to store the objects. (templated)

replaceIf true, replaces same-named files in GCS

gzipOption to compress file for upload

azure_data_lake_conn_idRequiredThe connection ID to use when connecting to Azure Data Lake Storage.

gcp_conn_id(Optional) The connection ID used to connect to Google Cloud.

delegate_toGoogle account to impersonate using domain-wide delegation of authority, if any. For this to work, the service account making the request must have domain-wide delegation enabled.

google_impersonation_chainOptional Google service account to impersonate using short-term credentials, or chained list of accounts required to get the access_token of the last account in the list, which will be impersonated in the request. If set as a string, the account must grant the originating account the Service Account Token Creator IAM role. If set as a sequence, the identities from the list must grant Service Account Token Creator IAM role to the directly preceding identity, with first account from the list granting this role to the originating account (templated).

Documentation

Synchronizes an Azure Data Lake Storage path with a GCS bucket

Examples:

The following Operator would copy a single file named hello/world.avro from ADLS to the GCS bucket mybucket. Its full resulting gcs path will be gs://mybucket/hello/world.avro

copy_single_file = AdlsToGoogleCloudStorageOperator(
    task_id='copy_single_file',
    src_adls='hello/world.avro',
    dest_gcs='gs://mybucket',
    replace=False,
    azure_data_lake_conn_id='azure_data_lake_default',
    gcp_conn_id='google_cloud_default'
)

The following Operator would copy all parquet files from ADLS to the GCS bucket mybucket.

   copy_all_files = AdlsToGoogleCloudStorageOperator(
       task_id='copy_all_files',
       src_adls='*.parquet',
       dest_gcs='gs://mybucket',
       replace=False,
       azure_data_lake_conn_id='azure_data_lake_default',
       gcp_conn_id='google_cloud_default'
   )

The following Operator would copy all parquet files from ADLS
path ``/hello/world``to the GCS bucket ``mybucket``. ::

   copy_world_files = AdlsToGoogleCloudStorageOperator(
       task_id='copy_world_files',
       src_adls='hello/world/*.parquet',
       dest_gcs='gs://mybucket',
       replace=False,
       azure_data_lake_conn_id='azure_data_lake_default',
       gcp_conn_id='google_cloud_default'
   )