Add Watcher Kubernetes documentation#2303
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Pull request overview
This PR adds comprehensive documentation for the new ExecutionMode.WATCHER_KUBERNETES feature introduced in Cosmos 1.13.0, which combines the performance benefits of watcher mode with Kubernetes pod isolation.
Changes:
- Added dedicated documentation page explaining the watcher Kubernetes execution mode, its benefits, usage, and limitations
- Updated execution modes documentation to include the new watcher_kubernetes mode in the comparison table and descriptions
- Added navigation entries in the getting started index to make the new documentation discoverable
Reviewed changes
Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.
| File | Description |
|---|---|
| docs/getting_started/watcher-kubernetes-execution-mode.rst | New comprehensive documentation covering usage, performance benchmarks, limitations, and prerequisites for the watcher Kubernetes execution mode |
| docs/getting_started/index.rst | Added navigation entries for the new watcher Kubernetes execution mode documentation |
| docs/getting_started/execution-modes.rst | Added watcher_kubernetes to the execution modes comparison table and included a new section describing the mode |
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Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## main #2303 +/- ##
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tatiana
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Jan 29, 2026
pankajastro
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Jan 29, 2026
Merged
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Jan 30, 2026
Features * Support cross-referencing models across dbt projects using dbt-loom by @pankajkoti in #2271 * Support use of YAML selectors when using ``LoadMode.DBT_MANIFEST`` by @YourRoyalLinus in #2261 * Introduce ``ExecutionMode.WATCHER_KUBERNETES`` to use the watcher with ``KubernetesPodOperator`` by @tatiana in #2207 * Add support for StarRocks profile mapping by @kurkim0661 in #2256 * Allow pushing URIs as XComs for Cosmos tasks by @corsettigyg in #2275 * Support defining custom callbacks alongside the ``WATCHER_KUBERNETES`` callback by @johnhoran in #2307 Enhancements * Refactor: remove duplicate ``_construct_dest_file_path`` by @jx2lee in #2077 * Leverage Airflow ``::group::`` to group logs associated with DAG parsing by @tatiana in #2235 * Refactor ``DbtConsumerWatcherSensor`` for reusability by @tatiana in #2245 * Restore plain text output when using ``ExecutionMode.WATCHER`` by @tiovader in #2241 Bug Fixes * Fix running empty models or ephemeral nodes in ``ExecutionMode.WATCHER`` by @tatiana in #2279 * Improve watcher producer task priority in scheduling and the UI by @tatiana in #2237 * Fix typos and formatting issues in documentation by @pankajkoti in #2259 * Allow watcher producer retries without erroring by @tatiana in #2283 * Fix ``TestBehavior.AFTER_ALL`` is missing project_name information when loading project using manifest file by @tuantran0910 in #2242 * Fix duplicate log lines in watcher subprocess execution and format timestamps by @pankajkoti in #2301 Docs * Add Watcher Kubernetes documentation by @tatiana in #2303 * Document newly added telemetry metrics in the privacy notice by @pankajkoti in #2249 * Add compatibility policy document by @pankajastro in #2251 * Improve watcher documentation related to dbt threads by @tatiana in #2273 * Fix link in watcher execution mode documentation by @jedcunningham in #2277 * Update Apache Airflow minimum compatibility policy by @tatiana in #2285 * Clarify Cosmos runtime support until "End of Basic Support" by @jedcunningham in #2286 * Update watcher docs by @tatiana in #2298 * Update watcher kubernetes documentation by @tatiana in #2306 Others * Add Airflow 3 DAG versioning tests for Cosmos by @michal-mrazek in #2177 * Add dbt Core 1.11 to the test matrix by @tatiana in #2230 * Add integration tests using InvocationMode.SUBPROCESS and validate output by @tatiana in #2287 * Fix main branch failing tests by @tatiana in #2296 * Update pre-commit hooks to the latest versions by @jedcunningham in #2289 * Pre-commit autoupdates by @pre-commit in #2222, #2264, #2274 and #2290 * Dependabot updates by @dependabot in #2218, #2219, #2220, #2280 and #2284 * Add Scarf metrics to understand Cosmos feature usage patterns - Add telemetry tracking for dbt docs plugin usage by @pankajkoti in #2240 - Add DAG run telemetry metrics for load mode, invocation, and render_config parameters by @pankajkoti in #2223 - Collect profile metrics for DAG runs by @pankajastro in #2228 - Compress telemetry metadata to reduce serialized DAG size by @pankajkoti in #2252 - Skip storing telemetry metadata when emission is disabled by @pankajkoti in #2278 - Hide telemetry metadata parameters from the Airflow trigger UI by @pankajkoti in #2247 closes: astronomer/oss-integrations-private#317 --------- Co-authored-by: Tatiana Al-Chueyr <tatiana.alchueyr@gmail.com>
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This is a follow-up PR to document the
ExecutionMode.KUBERNETESintroduced in #2207.