Add workers.celery.labels & workers.kubernetes.labels

[Miretpl]

related: #28880

This PR introduces two new fields: workers.celery.labels and workers.kubernetes.labels. The workers.labels field is now deprecated.

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• Read the Pull Request Guidelines for more information. Note: commit author/co-author name and email in commits become permanently public when merged.
• For fundamental code changes, an Airflow Improvement Proposal (AIP) is needed.
• When adding dependency, check compliance with the ASF 3rd Party License Policy.
• For significant user-facing changes create newsfragment: {pr_number}.significant.rst, in airflow-core/newsfragments. You can add this file in a follow-up commit after the PR is created so you know the PR number.

[Copilot]

Pull request overview

Adds executor-specific worker label configuration to the Airflow Helm chart by introducing workers.celery.labels and workers.kubernetes.labels, and deprecating the legacy workers.labels key to support configuring Celery and Kubernetes workers independently (notably for CeleryKubernetesExecutor use cases).

Changes:

• Introduce workers.celery.labels and workers.kubernetes.labels in values + JSON schema; mark workers.labels as deprecated.
• Update Helm templates for Kubernetes worker artifacts / pod-template-file to prefer workers.kubernetes.labels with fallback to deprecated workers.labels.
• Expand Helm tests to cover labels coming from both the deprecated location and the new executor-specific locations.

Reviewed changes

Copilot reviewed 11 out of 11 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
helm-tests/tests/helm_tests/airflow_core/test_worker.py	Parametrizes label tests to validate deprecated vs executor-specific label behavior across worker resources.
helm-tests/tests/helm_tests/airflow_core/test_worker_sets.py	Extends worker-set label overwrite coverage when labels are defined under workers.celery.
helm-tests/tests/helm_tests/airflow_core/test_pdb_worker.py	Updates PDB label tests to cover deprecated + workers.celery.labels scenarios.
helm-tests/tests/helm_tests/airflow_aux/test_pod_template_file.py	Updates pod-template-file label tests to cover deprecated + workers.kubernetes.labels scenarios.
chart/values.yaml	Adds new values keys and annotates workers.labels as deprecated.
chart/values.schema.json	Adds schema support for the new keys and updates the deprecated key’s description.
chart/templates/workers/worker-kubernetes-serviceaccount.yaml	Uses workers.kubernetes.labels (fallback to deprecated workers.labels) for Kubernetes worker ServiceAccount labels.
chart/templates/NOTES.txt	Adds a deprecation warning for workers.labels.
chart/newsfragments/65030.significant.rst	Announces the deprecation and replacement keys.
chart/files/pod-template-file.kubernetes-helm-yaml	Uses workers.kubernetes.labels (fallback to deprecated workers.labels) for pod-template-file labels.
chart/docs/customizing-labels.rst	Adjusts examples in label customization docs (but currently drops the worker example).

[Copilot]

Pull request overview

Note

Copilot was unable to run its full agentic suite in this review.

Deprecates workers.labels in the Helm chart in favor of two new, more specific settings: workers.celery.labels and workers.kubernetes.labels, and updates chart templates/tests/docs accordingly.

Changes:

• Add workers.celery.labels and workers.kubernetes.labels to values.yaml and values.schema.json, and emit a deprecation warning for workers.labels.
• Update Helm templates to prefer the new component-specific labels (falling back to deprecated workers.labels).
• Expand Helm unit tests to validate label precedence/behavior across worker-related resources.

Reviewed changes

Copilot reviewed 11 out of 11 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
helm-tests/tests/helm_tests/airflow_core/test_worker_sets.py	Adds test coverage for workers.celery.labels behavior in worker sets.
helm-tests/tests/helm_tests/airflow_core/test_worker.py	Parameterizes multiple label-source scenarios to validate precedence for worker resources.
helm-tests/tests/helm_tests/airflow_core/test_pdb_worker.py	Updates PDB tests to cover new label configuration behavior.
helm-tests/tests/helm_tests/airflow_aux/test_pod_template_file.py	Updates pod-template-file tests for workers.kubernetes.labels precedence.
chart/values.yaml	Introduces new values keys and marks workers.labels as deprecated.
chart/values.schema.json	Adds schema entries for the new label keys and marks workers.labels as deprecated.
chart/templates/workers/worker-kubernetes-serviceaccount.yaml	Switches label merge source to prefer workers.kubernetes.labels (fallback to deprecated).
chart/templates/NOTES.txt	Adds a deprecation warning message for workers.labels.
chart/newsfragments/65030.significant.rst	Documents the deprecation of workers.labels in release notes.
chart/files/pod-template-file.kubernetes-helm-yaml	Switches label merge source to prefer workers.kubernetes.labels (fallback to deprecated).
chart/docs/customizing-labels.rst	Removes worker label example but does not yet show the new worker label keys.