pankajastro commented on code in PR #30244:
URL: https://github.com/apache/airflow/pull/30244#discussion_r1217037100
##########
airflow/providers/amazon/aws/triggers/redshift_cluster.py:
##########
@@ -357,3 +357,78 @@ async def run(self):
)
else:
yield TriggerEvent({"status": "success", "message": "Cluster
resumed"})
+
+
+class RedshiftDeleteClusterTrigger(BaseTrigger):
+ """
+ Trigger for RedshiftDeleteClusterOperator
+
+ :param cluster_identifier: A unique identifier for the cluster.
+ :param max_attempts: The maximum number of attempts to be made.
+ :param aws_conn_id: The Airflow connection used for AWS credentials.
+ :param poll_interval: The amount of time in seconds to wait between
attempts.
+ """
+
+ def __init__(
+ self,
+ cluster_identifier: str,
+ max_attempts: int = 30,
+ aws_conn_id: str = "aws_default",
+ poll_interval: int = 30,
+ ):
+ super().__init__()
+ self.cluster_identifier = cluster_identifier
+ self.max_attempts = max_attempts
+ self.aws_conn_id = aws_conn_id
+ self.poll_interval = poll_interval
+
+ def serialize(self) -> tuple[str, dict[str, Any]]:
+ return (
+
"airflow.providers.amazon.aws.triggers.redshift_cluster.RedshiftDeleteClusterTrigger",
+ {
+ "cluster_identifier": self.cluster_identifier,
+ "max_attempts": self.max_attempts,
+ "aws_conn_id": self.aws_conn_id,
+ "poll_interval": self.poll_interval,
+ },
+ )
+
+ @cached_property
+ def hook(self):
+ return RedshiftHook(aws_conn_id=self.aws_conn_id)
+
+ async def run(self) -> AsyncIterator[TriggerEvent]:
+ async with self.hook.async_conn as client:
+ attempt = 0
+ waiter = client.get_waiter("cluster_deleted")
+ while attempt < self.max_attempts:
+ attempt = attempt + 1
+ try:
+ await waiter.wait(
+ ClusterIdentifier=self.cluster_identifier,
+ WaiterConfig={
+ "Delay": self.poll_interval,
+ "MaxAttempts": 1,
Review Comment:
I feel when we are waiting in the trigger loop then it would be helpful for
a user if we log some message otherwise users are not aware of what happening
in the background. Unfourtunently boto waiter does not provide a way of doing
some logging so we decided this workaround you can find some discussion on PR
https://github.com/apache/airflow/pull/30853 about it.
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