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import time
from typing import TYPE_CHECKING, Any, Dict, List, Optional, Sequence
from airflow.models import BaseOperator
from airflow.providers.amazon.aws.hooks.redshift_cluster import RedshiftHook
if TYPE_CHECKING:
from airflow.utils.context import Context
[docs]class RedshiftCreateClusterOperator(BaseOperator):
"""Creates a new cluster with the specified parameters.
.. seealso::
For more information on how to use this operator, take a look at the guide:
:ref:`howto/operator:RedshiftCreateClusterOperator`
:param cluster_identifier: A unique identifier for the cluster.
:param node_type: The node type to be provisioned for the cluster.
Valid Values: ``ds2.xlarge``, ``ds2.8xlarge``, ``dc1.large``,
``dc1.8xlarge``, ``dc2.large``, ``dc2.8xlarge``, ``ra3.xlplus``,
``ra3.4xlarge``, and ``ra3.16xlarge``.
:param master_username: The username associated with the admin user account for
the cluster that is being created.
:param master_user_password: The password associated with the admin user account for
the cluster that is being created.
:param cluster_type: The type of the cluster ``single-node`` or ``multi-node``.
The default value is ``multi-node``.
:param db_name: The name of the first database to be created when the cluster is created.
:param number_of_nodes: The number of compute nodes in the cluster.
This param require when ``cluster_type`` is ``multi-node``.
:param cluster_security_groups: A list of security groups to be associated with this cluster.
:param vpc_security_group_ids: A list of VPC security groups to be associated with the cluster.
:param cluster_subnet_group_name: The name of a cluster subnet group to be associated with this cluster.
:param availability_zone: The EC2 Availability Zone (AZ).
:param preferred_maintenance_window: The time range (in UTC) during which automated cluster
maintenance can occur.
:param cluster_parameter_group_name: The name of the parameter group to be associated with this cluster.
:param automated_snapshot_retention_period: The number of days that automated snapshots are retained.
The default value is ``1``.
:param manual_snapshot_retention_period: The default number of days to retain a manual snapshot.
:param port: The port number on which the cluster accepts incoming connections.
The Default value is ``5439``.
:param cluster_version: The version of a Redshift engine software that you want to deploy on the cluster.
:param allow_version_upgrade: Whether major version upgrades can be applied during the maintenance window.
The Default value is ``True``.
:parma publicly_accessible: Whether cluster can be accessed from a public network.
:parma encrypted: Whether data in the cluster is encrypted at rest.
The default value is ``False``.
:parma hsm_client_certificate_identifier: Name of the HSM client certificate
the Amazon Redshift cluster uses to retrieve the data.
:parma hsm_configuration_identifier: Name of the HSM configuration
:parma elastic_ip: The Elastic IP (EIP) address for the cluster.
:parma tags: A list of tag instances
:parma kms_key_id: KMS key id of encryption key.
:param enhanced_vpc_routing: Whether to create the cluster with enhanced VPC routing enabled
Default value is ``False``.
:param additional_info: Reserved
:param iam_roles: A list of IAM roles that can be used by the cluster to access other AWS services.
:param maintenance_track_name: Name of the maintenance track for the cluster.
:param snapshot_schedule_identifier: A unique identifier for the snapshot schedule.
:param availability_zone_relocation: Enable relocation for a Redshift cluster
between Availability Zones after the cluster is created.
:param aqua_configuration_status: The cluster is configured to use AQUA .
:param default_iam_role_arn: ARN for the IAM role.
:param aws_conn_id: str = The Airflow connection used for AWS credentials.
The default connection id is ``aws_default``.
"""
[docs] template_fields: Sequence[str] = (
"cluster_identifier",
"cluster_type",
"node_type",
"number_of_nodes",
)
def __init__(
self,
*,
cluster_identifier: str,
node_type: str,
master_username: str,
master_user_password: str,
cluster_type: str = "multi-node",
db_name: str = "dev",
number_of_nodes: int = 1,
cluster_security_groups: Optional[List[str]] = None,
vpc_security_group_ids: Optional[List[str]] = None,
cluster_subnet_group_name: Optional[str] = None,
availability_zone: Optional[str] = None,
preferred_maintenance_window: Optional[str] = None,
cluster_parameter_group_name: Optional[str] = None,
automated_snapshot_retention_period: int = 1,
manual_snapshot_retention_period: Optional[int] = None,
port: int = 5439,
cluster_version: str = "1.0",
allow_version_upgrade: bool = True,
publicly_accessible: bool = True,
encrypted: bool = False,
hsm_client_certificate_identifier: Optional[str] = None,
hsm_configuration_identifier: Optional[str] = None,
elastic_ip: Optional[str] = None,
tags: Optional[List[Any]] = None,
kms_key_id: Optional[str] = None,
enhanced_vpc_routing: bool = False,
additional_info: Optional[str] = None,
iam_roles: Optional[List[str]] = None,
maintenance_track_name: Optional[str] = None,
snapshot_schedule_identifier: Optional[str] = None,
availability_zone_relocation: Optional[bool] = None,
aqua_configuration_status: Optional[str] = None,
default_iam_role_arn: Optional[str] = None,
aws_conn_id: str = "aws_default",
**kwargs,
):
super().__init__(**kwargs)
self.cluster_identifier = cluster_identifier
self.node_type = node_type
self.master_username = master_username
self.master_user_password = master_user_password
self.cluster_type = cluster_type
self.db_name = db_name
self.number_of_nodes = number_of_nodes
self.cluster_security_groups = cluster_security_groups
self.vpc_security_group_ids = vpc_security_group_ids
self.cluster_subnet_group_name = cluster_subnet_group_name
self.availability_zone = availability_zone
self.preferred_maintenance_window = preferred_maintenance_window
self.cluster_parameter_group_name = cluster_parameter_group_name
self.automated_snapshot_retention_period = automated_snapshot_retention_period
self.manual_snapshot_retention_period = manual_snapshot_retention_period
self.port = port
self.cluster_version = cluster_version
self.allow_version_upgrade = allow_version_upgrade
self.publicly_accessible = publicly_accessible
self.encrypted = encrypted
self.hsm_client_certificate_identifier = hsm_client_certificate_identifier
self.hsm_configuration_identifier = hsm_configuration_identifier
self.elastic_ip = elastic_ip
self.tags = tags
self.kms_key_id = kms_key_id
self.enhanced_vpc_routing = enhanced_vpc_routing
self.additional_info = additional_info
self.iam_roles = iam_roles
self.maintenance_track_name = maintenance_track_name
self.snapshot_schedule_identifier = snapshot_schedule_identifier
self.availability_zone_relocation = availability_zone_relocation
self.aqua_configuration_status = aqua_configuration_status
self.default_iam_role_arn = default_iam_role_arn
self.aws_conn_id = aws_conn_id
self.kwargs = kwargs
[docs] def execute(self, context: 'Context'):
redshift_hook = RedshiftHook(aws_conn_id=self.aws_conn_id)
self.log.info("Creating Redshift cluster %s", self.cluster_identifier)
params: Dict[str, Any] = {}
if self.db_name:
params["DBName"] = self.db_name
if self.cluster_type:
params["ClusterType"] = self.cluster_type
if self.cluster_type == "multi-node":
params["NumberOfNodes"] = self.number_of_nodes
if self.cluster_security_groups:
params["ClusterSecurityGroups"] = self.cluster_security_groups
if self.vpc_security_group_ids:
params["VpcSecurityGroupIds"] = self.vpc_security_group_ids
if self.cluster_subnet_group_name:
params["ClusterSubnetGroupName"] = self.cluster_subnet_group_name
if self.availability_zone:
params["AvailabilityZone"] = self.availability_zone
if self.preferred_maintenance_window:
params["PreferredMaintenanceWindow"] = self.preferred_maintenance_window
if self.cluster_parameter_group_name:
params["ClusterParameterGroupName"] = self.cluster_parameter_group_name
if self.automated_snapshot_retention_period:
params["AutomatedSnapshotRetentionPeriod"] = self.automated_snapshot_retention_period
if self.manual_snapshot_retention_period:
params["ManualSnapshotRetentionPeriod"] = self.manual_snapshot_retention_period
if self.port:
params["Port"] = self.port
if self.cluster_version:
params["ClusterVersion"] = self.cluster_version
if self.allow_version_upgrade:
params["AllowVersionUpgrade"] = self.allow_version_upgrade
if self.publicly_accessible:
params["PubliclyAccessible"] = self.publicly_accessible
if self.encrypted:
params["Encrypted"] = self.encrypted
if self.hsm_client_certificate_identifier:
params["HsmClientCertificateIdentifier"] = self.hsm_client_certificate_identifier
if self.hsm_configuration_identifier:
params["HsmConfigurationIdentifier"] = self.hsm_configuration_identifier
if self.elastic_ip:
params["ElasticIp"] = self.elastic_ip
if self.tags:
params["Tags"] = self.tags
if self.kms_key_id:
params["KmsKeyId"] = self.kms_key_id
if self.enhanced_vpc_routing:
params["EnhancedVpcRouting"] = self.enhanced_vpc_routing
if self.additional_info:
params["AdditionalInfo"] = self.additional_info
if self.iam_roles:
params["IamRoles"] = self.iam_roles
if self.maintenance_track_name:
params["MaintenanceTrackName"] = self.maintenance_track_name
if self.snapshot_schedule_identifier:
params["SnapshotScheduleIdentifier"] = self.snapshot_schedule_identifier
if self.availability_zone_relocation:
params["AvailabilityZoneRelocation"] = self.availability_zone_relocation
if self.aqua_configuration_status:
params["AquaConfigurationStatus"] = self.aqua_configuration_status
if self.default_iam_role_arn:
params["DefaultIamRoleArn"] = self.default_iam_role_arn
cluster = redshift_hook.create_cluster(
self.cluster_identifier,
self.node_type,
self.master_username,
self.master_user_password,
params,
)
self.log.info("Created Redshift cluster %s", self.cluster_identifier)
self.log.info(cluster)
[docs]class RedshiftResumeClusterOperator(BaseOperator):
"""
Resume a paused AWS Redshift Cluster
.. seealso::
For more information on how to use this operator, take a look at the guide:
:ref:`howto/operator:RedshiftResumeClusterOperator`
:param cluster_identifier: id of the AWS Redshift Cluster
:param aws_conn_id: aws connection to use
"""
[docs] template_fields: Sequence[str] = ("cluster_identifier",)
def __init__(
self,
*,
cluster_identifier: str,
aws_conn_id: str = "aws_default",
**kwargs,
):
super().__init__(**kwargs)
self.cluster_identifier = cluster_identifier
self.aws_conn_id = aws_conn_id
[docs] def execute(self, context: 'Context'):
redshift_hook = RedshiftHook(aws_conn_id=self.aws_conn_id)
cluster_state = redshift_hook.cluster_status(cluster_identifier=self.cluster_identifier)
if cluster_state == 'paused':
self.log.info("Starting Redshift cluster %s", self.cluster_identifier)
redshift_hook.get_conn().resume_cluster(ClusterIdentifier=self.cluster_identifier)
else:
self.log.warning(
"Unable to resume cluster since cluster is currently in status: %s", cluster_state
)
[docs]class RedshiftPauseClusterOperator(BaseOperator):
"""
Pause an AWS Redshift Cluster if it has status `available`.
.. seealso::
For more information on how to use this operator, take a look at the guide:
:ref:`howto/operator:RedshiftPauseClusterOperator`
:param cluster_identifier: id of the AWS Redshift Cluster
:param aws_conn_id: aws connection to use
"""
[docs] template_fields: Sequence[str] = ("cluster_identifier",)
def __init__(
self,
*,
cluster_identifier: str,
aws_conn_id: str = "aws_default",
**kwargs,
):
super().__init__(**kwargs)
self.cluster_identifier = cluster_identifier
self.aws_conn_id = aws_conn_id
[docs] def execute(self, context: 'Context'):
redshift_hook = RedshiftHook(aws_conn_id=self.aws_conn_id)
cluster_state = redshift_hook.cluster_status(cluster_identifier=self.cluster_identifier)
if cluster_state == 'available':
self.log.info("Pausing Redshift cluster %s", self.cluster_identifier)
redshift_hook.get_conn().pause_cluster(ClusterIdentifier=self.cluster_identifier)
else:
self.log.warning(
"Unable to pause cluster since cluster is currently in status: %s", cluster_state
)
[docs]class RedshiftDeleteClusterOperator(BaseOperator):
"""
Delete an AWS Redshift cluster.
.. seealso::
For more information on how to use this operator, take a look at the guide:
:ref:`howto/operator:RedshiftDeleteClusterOperator`
:param cluster_identifier: unique identifier of a cluster
:param skip_final_cluster_snapshot: determines cluster snapshot creation
:param final_cluster_snapshot_identifier: name of final cluster snapshot
:param wait_for_completion: Whether wait for cluster deletion or not
The default value is ``True``
:param aws_conn_id: aws connection to use
:param poll_interval: Time (in seconds) to wait between two consecutive calls to check cluster state
"""
[docs] template_fields: Sequence[str] = ("cluster_identifier",)
def __init__(
self,
*,
cluster_identifier: str,
skip_final_cluster_snapshot: bool = True,
final_cluster_snapshot_identifier: Optional[str] = None,
wait_for_completion: bool = True,
aws_conn_id: str = "aws_default",
poll_interval: float = 30.0,
**kwargs,
):
super().__init__(**kwargs)
self.cluster_identifier = cluster_identifier
self.skip_final_cluster_snapshot = skip_final_cluster_snapshot
self.final_cluster_snapshot_identifier = final_cluster_snapshot_identifier
self.wait_for_completion = wait_for_completion
self.redshift_hook = RedshiftHook(aws_conn_id=aws_conn_id)
self.poll_interval = poll_interval
[docs] def execute(self, context: 'Context'):
self.delete_cluster()
if self.wait_for_completion:
cluster_status: str = self.check_status()
while cluster_status != "cluster_not_found":
self.log.info(
"cluster status is %s. Sleeping for %s seconds.", cluster_status, self.poll_interval
)
time.sleep(self.poll_interval)
cluster_status = self.check_status()
[docs] def delete_cluster(self) -> None:
self.redshift_hook.delete_cluster(
cluster_identifier=self.cluster_identifier,
skip_final_cluster_snapshot=self.skip_final_cluster_snapshot,
final_cluster_snapshot_identifier=self.final_cluster_snapshot_identifier,
)
[docs] def check_status(self) -> str:
return self.redshift_hook.cluster_status(self.cluster_identifier)
