Restore an AWS Redshift Cluster from a Snapshot

import boto3 import botocore.exceptions creds = _get_creds(cred_label)['creds'] access_key = creds['username'] secret_key = creds['password'] def restore_redshift_from_snapshot(snapshot_identifier, cluster_identifier, node_type, number_of_nodes, region, availability_zone=None, maintenance_track_name=None): """ Restore a Redshift cluster from a given snapshot. Parameters: - snapshot_identifier (str): Identifier for the snapshot to restore from. - cluster_identifier (str): Identifier for the new cluster. - node_type (str): Node type for the new cluster. - number_of_nodes (int): Number of nodes for the new cluster. - region (str): AWS region to restore the cluster. - availability_zone (str, optional): The availability zone to restore to. If not specified, a random zone is chosen. - maintenance_track_name (str, optional): Maintenance track for the new cluster. Returns: - dict: Response from the Redshift restore operation or None if the restore operation fails. """ # Initialize the Redshift client with the specified region redshift = boto3.client('redshift', aws_access_key_id=access_key,aws_secret_access_key=secret_key,region_name=region) # Define the restore parameters restore_params = { 'SnapshotIdentifier': snapshot_identifier, 'ClusterIdentifier': cluster_identifier, 'NodeType': node_type, 'NumberOfNodes': number_of_nodes } # Optionally set the availability zone if provided if availability_zone: restore_params['AvailabilityZone'] = availability_zone # Optionally set the maintenance track name if provided if maintenance_track_name: restore_params['MaintenanceTrackName'] = maintenance_track_name try: # Initiate the restore operation response = redshift.restore_from_cluster_snapshot(**restore_params) return response # Handle specific Redshift exceptions except redshift.exceptions.ClusterAlreadyExistsFault: print(f"Cluster with identifier {cluster_identifier} already exists.") except redshift.exceptions.ClusterSnapshotNotFoundFault: print(f"Snapshot {snapshot_identifier} not found.") except redshift.exceptions.InvalidClusterSnapshotStateFault: print(f"Snapshot {snapshot_identifier} is not in the correct state for restoration.") except redshift.exceptions.InvalidRestoreFault: print(f"Invalid restore parameters for snapshot {snapshot_identifier}.") except redshift.exceptions.UnauthorizedOperation: print(f"Unauthorized to restore cluster from snapshot {snapshot_identifier}. Check your AWS IAM permissions.") # Catch parameter validation errors except botocore.exceptions.ParamValidationError as e: print(f"Parameter validation error: {e}") # Handle other general exceptions except Exception as e: print(f"Error restoring Redshift cluster from snapshot: {e}") # Return None if any exception occurs return None # Example usage: #snapshot_id = "redshift-cluster-1-snapshot123" #new_cluster_id = "redshift-cluster-restored" #node_type = "dc2.large" #num_nodes = 1 #aws_region = "us-west-2" response = restore_redshift_from_snapshot(snapshot_id, new_cluster_id, node_type, num_nodes, aws_region) if response: print("Restore operation initiated successfully.") else: print("Failed to initiate restore operation.")