raghavan-arvind opened a new pull request, #71625:
URL: https://github.com/apache/airflow/pull/71625
## Why
The existing `DatadogSensor` queries the event stream for transition events
in a time window. That shape cannot answer "is this monitor healthy right now":
a monitor that entered Alert before the window (or recovered before it) emits
no event inside it, so gating a pipeline on monitor health requires
reconstructing state from transitions.
This adds `DatadogMonitorSensor`, which checks a monitor's current
`overall_state` — an already-alerting or already-recovered monitor is observed
regardless of when it last changed state.
## What
- `DatadogMonitorSensor`: waits for a monitor to reach one of
`target_states` (default `("OK",)`). Supports poke and reschedule modes via
`poke()`, and deferrable mode (default from `[operators] default_deferrable`)
via a new `DatadogMonitorTrigger`, following the same shape as other deferrable
sensors. In deferrable mode it pokes once before deferring, so an
already-satisfied condition never round-trips through the triggerer.
- `DatadogMonitorTrigger`: polls the monitor state off the event loop
(`asyncio.to_thread`, since the datadog client is sync) and fires when a target
state is reached.
- The datadog library returns API errors as a payload instead of raising;
both paths surface them as a clear `AirflowException` (e.g. `Datadog monitor
999999999: ['Monitor not found']`).
- provider.yaml gains a `triggers` section; unit tests for sensor (all
modes) and trigger (serialize round-trip, poll-until-target, API error).
## Testing
`uv run --project providers/datadog pytest
providers/datadog/tests/unit/datadog`: 19 passed. Also validated end to end in
a production-like Airflow 3.3 deployment: canary tasks covering pass / timeout
/ missing-monitor across poke, reschedule and deferrable modes behave as
expected.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
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