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.. _howto/connection:redshift:

Amazon Redshift Connection
==========================

The Redshift connection type enables integrations with Redshift.

Authenticating to Amazon Redshift
---------------------------------

Authentication may be performed using any of the authentication methods supported by `redshift_connector <https://github.com/aws/amazon-redshift-python-driver>`_ such as via direct credentials, IAM authentication, or using an Identity Provider (IdP) plugin.

Default Connection IDs
----------------------

The default connection ID is ``redshift_default``.

Configuring the Connection
--------------------------

Host (optional)
  Specify the Amazon Redshift cluster endpoint.

Schema (optional)
  Specify the Amazon Redshift database name.

Login (optional)
  Specify the username to use for authentication with Amazon Redshift.

Password (optional)
  Specify the password to use for authentication with Amazon Redshift.

Port (optional)
  Specify the port to use to interact with Amazon Redshift.

Extra (optional)
    Specify the extra parameters (as json dictionary) that can be used in
    Amazon Redshift connection. For a complete list of supported parameters
    please see the `documentation <https://github.com/aws/amazon-redshift-python-driver#connection-parameters>`_
    for redshift_connector.

If you are configuring the connection via a URI, ensure that all components of the URI are URL-encoded.

Examples
--------

**Database Authentication**

* **Schema**: ``Dev``
* **Host**: ``redshift-cluster-1.123456789.us-west-1.redshift.amazonaws.com``
* **Login**: ``awsuser``
* **Password**: ``********``
* **Port**: ``5439``

**IAM Authentication**

Uses AWS IAM to retrieve a temporary password to connect to Amazon Redshift. Port is required.
If none is provided, default is used (5439). This assumes all other Connection fields e.g. **Login** are empty.
In this method, **cluster_identifier** replaces **Host** and **Port** in order to uniquely identify the cluster.
`More details about AWS IAM authentication to generate database user credentials <https://docs.aws.amazon.com/redshift/latest/mgmt/generating-user-credentials.html>`_.

* **Extra**:

.. code-block:: json

    {
      "iam": true,
      "cluster_identifier": "redshift-cluster-1",
      "port": 5439,
      "region": "us-east-1",
      "db_user": "awsuser",
      "database": "dev",
      "profile": "default"
    }