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Disable starting a mapped task from trigger #48006

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Merged
dstandish merged 4 commits into from
Mar 24, 2025
Merged

Disable starting a mapped task from trigger #48006

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dfd25f7
Disable starting a mapped task from trigger
dstandish Mar 20, 2025
93ae62a
only log warning if it's enabled
dstandish Mar 20, 2025
1a6a02e
hopefully fix docs build?
dstandish Mar 20, 2025
aedda41
revert docs build change
dstandish Mar 24, 2025
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10 changes: 10 additions & 0 deletions airflow-core/src/airflow/models/mappedoperator.py
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Original file line number Diff line number Diff line change
Expand Up @@ -20,6 +20,7 @@
from typing import TYPE_CHECKING

import attrs
import structlog

from airflow.models.abstractoperator import AbstractOperator
from airflow.sdk.definitions.mappedoperator import MappedOperator as TaskSDKMappedOperator
Expand All @@ -31,6 +32,8 @@

from airflow.sdk.definitions.context import Context

log = structlog.get_logger()


@attrs.define(
kw_only=True,
Expand All @@ -57,6 +60,13 @@ def expand_start_from_trigger(self, *, context: Context, session: Session) -> bo

:meta private:
"""
if self.partial_kwargs.get("start_from_trigger", self.start_from_trigger):
log.warning(
"Starting a mapped task from triggerer is currently unsupported",
task_id=self.task_id,
dag_id=self.dag_id,
)
return False
# start_from_trigger only makes sense when start_trigger_args exists.
if not self.start_trigger_args:
return False
Expand Down