Source code for airflow.providers.amazon.aws.sensors.cloud_formation

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"""This module contains sensors for AWS CloudFormation."""

from __future__ import annotations

from typing import TYPE_CHECKING, Sequence

from airflow.providers.amazon.aws.sensors.base_aws import AwsBaseSensor
from airflow.providers.amazon.aws.utils.mixins import aws_template_fields

if TYPE_CHECKING:
    from airflow.utils.context import Context

from airflow.exceptions import AirflowSkipException
from airflow.providers.amazon.aws.hooks.cloud_formation import CloudFormationHook


[docs]class CloudFormationCreateStackSensor(AwsBaseSensor[CloudFormationHook]): """ Waits for a stack to be created successfully on AWS CloudFormation. .. seealso:: For more information on how to use this sensor, take a look at the guide: :ref:`howto/sensor:CloudFormationCreateStackSensor` :param stack_name: The name of the stack to wait for (templated) :param aws_conn_id: The Airflow connection used for AWS credentials. If this is ``None`` or empty then the default boto3 behaviour is used. If running Airflow in a distributed manner and aws_conn_id is None or empty, then default boto3 configuration would be used (and must be maintained on each worker node). :param region_name: AWS region_name. If not specified then the default boto3 behaviour is used. :param verify: Whether or not to verify SSL certificates. See: https://boto3.amazonaws.com/v1/documentation/api/latest/reference/core/session.html :param botocore_config: Configuration dictionary (key-values) for botocore client. See: https://botocore.amazonaws.com/v1/documentation/api/latest/reference/config.html """
[docs] aws_hook_class = CloudFormationHook
[docs] template_fields: Sequence[str] = aws_template_fields("stack_name")
[docs] ui_color = "#C5CAE9"
def __init__(self, *, stack_name, **kwargs): super().__init__(**kwargs) self.stack_name = stack_name
[docs] def poke(self, context: Context): stack_status = self.hook.get_stack_status(self.stack_name) if stack_status == "CREATE_COMPLETE": return True if stack_status in ("CREATE_IN_PROGRESS", None): return False # TODO: remove this if check when min_airflow_version is set to higher than 2.7.1 message = f"Stack {self.stack_name} in bad state: {stack_status}" if self.soft_fail: raise AirflowSkipException(message) raise ValueError(message)
[docs]class CloudFormationDeleteStackSensor(AwsBaseSensor[CloudFormationHook]): """ Waits for a stack to be deleted successfully on AWS CloudFormation. .. seealso:: For more information on how to use this sensor, take a look at the guide: :ref:`howto/sensor:CloudFormationDeleteStackSensor` :param stack_name: The name of the stack to wait for (templated) :param aws_conn_id: The Airflow connection used for AWS credentials. If this is ``None`` or empty then the default boto3 behaviour is used. If running Airflow in a distributed manner and aws_conn_id is None or empty, then default boto3 configuration would be used (and must be maintained on each worker node). :param region_name: AWS region_name. If not specified then the default boto3 behaviour is used. :param verify: Whether or not to verify SSL certificates. See: https://boto3.amazonaws.com/v1/documentation/api/latest/reference/core/session.html :param botocore_config: Configuration dictionary (key-values) for botocore client. See: https://botocore.amazonaws.com/v1/documentation/api/latest/reference/config.html """
[docs] aws_hook_class = CloudFormationHook
[docs] template_fields: Sequence[str] = aws_template_fields("stack_name")
[docs] ui_color = "#C5CAE9"
def __init__( self, *, stack_name: str, aws_conn_id: str | None = "aws_default", region_name: str | None = None, **kwargs, ): super().__init__(**kwargs) self.aws_conn_id = aws_conn_id self.region_name = region_name self.stack_name = stack_name
[docs] def poke(self, context: Context): stack_status = self.hook.get_stack_status(self.stack_name) if stack_status in ("DELETE_COMPLETE", None): return True if stack_status == "DELETE_IN_PROGRESS": return False # TODO: remove this if check when min_airflow_version is set to higher than 2.7.1 message = f"Stack {self.stack_name} in bad state: {stack_status}" if self.soft_fail: raise AirflowSkipException(message) raise ValueError(message)

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