Synchronizes a Google Cloud Storage bucket with an S3 bucket.

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Last Updated: Oct. 23, 2022

Access Instructions

Install the Amazon provider package into your Airflow environment.

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


bucketRequiredThe Google Cloud Storage bucket to find the objects. (templated)
prefixPrefix string which filters objects whose name begin with this prefix. (templated)
delimiterThe delimiter by which you want to filter the objects. (templated) For e.g to lists the CSV files from in a directory in GCS you would use delimiter=’.csv’.
gcp_conn_id(Optional) The connection ID used to connect to Google Cloud.
google_cloud_storage_conn_id(Deprecated) The connection ID used to connect to Google Cloud. This parameter has been deprecated. You should pass the gcp_conn_id parameter instead.
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.
dest_aws_conn_idThe destination S3 connection
dest_s3_keyRequiredThe base S3 key to be used to store the files. (templated)
dest_verifyWhether or not to verify SSL certificates for S3 connection. By default SSL certificates are verified. You can provide the following values: False: do not validate SSL certificates. SSL will still be used(unless use_ssl is False), but SSL certificates will not be verified. path/to/cert/bundle.pem: A filename of the CA cert bundle to uses.You can specify this argument if you want to use a different CA cert bundle than the one used by botocore.
replaceWhether or not to verify the existence of the files in the destination bucket. By default is set to False If set to True, will upload all the files replacing the existing ones in the destination bucket. If set to False, will upload only the files that are in the origin but not in the destination bucket.
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).
s3_acl_policyOptional The string to specify the canned ACL policy for the object to be uploaded in S3
keep_directory_structure(Optional) When set to False the path of the file on the bucket is recreated within path passed in dest_s3_key.


Synchronizes a Google Cloud Storage bucket with an S3 bucket.

See also

For more information on how to use this operator, take a look at the guide: Google Cloud Storage to Amazon S3

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