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=================
Amazon S3 Glacier
=================

`Amazon Glacier <https://docs.aws.amazon.com/amazonglacier/latest/dev/introduction.html>`_ is a secure, durable,
and extremely low-cost Amazon S3 cloud storage class for data archiving and long-term backup.

Prerequisite Tasks
------------------

.. include:: _partials/prerequisite_tasks.rst

Operators
---------

.. _howto/operator:GlacierCreateJobOperator:

Create an Amazon Glacier job
============================

To initiate an Amazon Glacier inventory retrieval job
use :class:`~airflow.providers.amazon.aws.transfers.glacier_to_gcs.GlacierCreateJobOperator`

This Operator returns a dictionary of information related to the initiated job such as *jobId*, which is required for subsequent tasks.

.. exampleinclude:: /../../airflow/providers/amazon/aws/example_dags/example_glacier_to_gcs.py
    :language: python
    :dedent: 4
    :start-after: [START howto_operator_glacier_create_job]
    :end-before: [END howto_operator_glacier_create_job]

Sensors
-------

.. _howto/sensor:GlacierJobOperationSensor:

Wait on an Amazon Glacier job state
===================================

To wait on the status of an Amazon Glacier Job to reach a terminal state
use :class:`~airflow.providers.amazon.aws.sensors.glacier.GlacierJobOperationSensor`

.. exampleinclude:: /../../airflow/providers/amazon/aws/example_dags/example_glacier_to_gcs.py
    :language: python
    :dedent: 4
    :start-after: [START howto_sensor_glacier_job_operation]
    :end-before: [END howto_sensor_glacier_job_operation]

References
----------

* `AWS boto3 library documentation for Amazon Glacier <https://boto3.amazonaws.com/v1/documentation/api/latest/reference/services/glacier.html>`__