Application Recovery Controller examples using SDK for Python (Boto3)

The following code examples show you how to perform actions and implement common scenarios by using the AWS SDK for Python (Boto3) with Application Recovery Controller.

Actions are code excerpts from larger programs and must be run in context. While actions show you how to call individual service functions, you can see actions in context in their related scenarios.

Each example includes a link to the complete source code, where you can find instructions on how to set up and run the code in context.

Actions

GetRoutingControlState

The following code example shows how to use GetRoutingControlState.

SDK for Python (Boto3)

Note

There's more on GitHub. Find the complete example and learn how to set up and run in the AWS Code Examples Repository.

import boto3


def create_recovery_client(cluster_endpoint):
    """
    Creates a Boto3 Route 53 Application Recovery Controller client for the specified
    cluster endpoint URL and AWS Region.

    :param cluster_endpoint: The cluster endpoint URL and Region.
    :return: The Boto3 client.
    """
    return boto3.client(
        "route53-recovery-cluster",
        endpoint_url=cluster_endpoint["Endpoint"],
        region_name=cluster_endpoint["Region"],
    )



def get_routing_control_state(routing_control_arn, cluster_endpoints):
    """
    Gets the state of a routing control. Cluster endpoints are tried in
    sequence until the first successful response is received.

    :param routing_control_arn: The ARN of the routing control to look up.
    :param cluster_endpoints: The list of cluster endpoints to query.
    :return: The routing control state response.
    """

    # As a best practice, we recommend choosing a random cluster endpoint to get or set routing control states.
    # For more information, see https://docs.aws.amazon.com/r53recovery/latest/dg/route53-arc-best-practices.html#route53-arc-best-practices.regional
    random.shuffle(cluster_endpoints)
    for cluster_endpoint in cluster_endpoints:
        try:
            recovery_client = create_recovery_client(cluster_endpoint)
            response = recovery_client.get_routing_control_state(
                RoutingControlArn=routing_control_arn
            )
            return response
        except Exception as error:
            print(error)
            raise error

• For API details, see GetRoutingControlState in AWS SDK for Python (Boto3) API Reference.

UpdateRoutingControlState

The following code example shows how to use UpdateRoutingControlState.

SDK for Python (Boto3)

Note

There's more on GitHub. Find the complete example and learn how to set up and run in the AWS Code Examples Repository.

import boto3


def create_recovery_client(cluster_endpoint):
    """
    Creates a Boto3 Route 53 Application Recovery Controller client for the specified
    cluster endpoint URL and AWS Region.

    :param cluster_endpoint: The cluster endpoint URL and Region.
    :return: The Boto3 client.
    """
    return boto3.client(
        "route53-recovery-cluster",
        endpoint_url=cluster_endpoint["Endpoint"],
        region_name=cluster_endpoint["Region"],
    )



def update_routing_control_state(
    routing_control_arn, cluster_endpoints, routing_control_state
):
    """
    Updates the state of a routing control. Cluster endpoints are tried in
    sequence until the first successful response is received.

    :param routing_control_arn: The ARN of the routing control to update the state for.
    :param cluster_endpoints: The list of cluster endpoints to try.
    :param routing_control_state: The new routing control state.
    :return: The routing control update response.
    """

    # As a best practice, we recommend choosing a random cluster endpoint to get or set routing control states.
    # For more information, see https://docs.aws.amazon.com/r53recovery/latest/dg/route53-arc-best-practices.html#route53-arc-best-practices.regional
    random.shuffle(cluster_endpoints)
    for cluster_endpoint in cluster_endpoints:
        try:
            recovery_client = create_recovery_client(cluster_endpoint)
            response = recovery_client.update_routing_control_state(
                RoutingControlArn=routing_control_arn,
                RoutingControlState=routing_control_state,
            )
            return response
        except Exception as error:
            print(error)

• For API details, see UpdateRoutingControlState in AWS SDK for Python (Boto3) API Reference.