def instance_dns_endpoint()

in scripts/aware_failover.py [0:0]

• 13 lines of code
• 4 McCabe index (conditional complexity)

def instance_dns_endpoint(current_endpoint, db_identifier):
    writer_endpoint = None

    # Is this an RDS endpoint?
    if current_endpoint.endswith(".rds.amazonaws.com"):
        # Split the DNS name
        temp = current_endpoint.split(".")

        # Build the new endpoint
        temp[0] = db_identifier
        temp[1] = temp[1].replace("cluster-", "")
        temp[1] = temp[1].replace("ro-", "")
        temp[1] = temp[1].replace("custom-", "")

        # Validate endpoint
        if len(temp[1]) != 12 or len(temp) != 6:
            raise Exception("Nonconforming endpoint DNS name provided")
        else:
            writer_endpoint = ".".join(temp)

    # Return writer endpoint
    return writer_endpoint