Saketkr21 opened a new pull request, #73259:
URL: https://github.com/apache/airflow/pull/73259

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   Add a new `apache-airflow-providers-dbt-core` provider package that ships a 
single
   operator, `DbtKubernetesRunOperator`, which runs a dbt Core job inside a 
single
   Kubernetes pod — mirroring a dbt Cloud job run without requiring dbt Cloud.
   
   The operator subclasses `KubernetesPodOperator` and orchestrates the full dbt
   lifecycle in one pod:
   
   1. **Clone** the dbt project from git (optional; repo may be baked into the 
image).
      A git-repo cache on S3/GCS lets runs recover if git is temporarily 
unreachable.
   2. **Run `dbt deps`** (optional).
   3. **Execute `steps`** — ordered shell commands (typically dbt CLI calls) 
sequentially;
      the first non-zero exit stops the run and fails the task.
   4. **Upload `target/`** to S3 or GCS on **both success and failure**, so
      `run_results.json` and compiled SQL are always available for inspection.
   
   Because the operator is a thin subclass, all `KubernetesPodOperator` 
arguments
   (`namespace`, `container_resources`, `deferrable`, `secrets`, 
`init_containers`, …)
   pass straight through.
   
   ### Files added / changed
   
   | Path | What |
   |---|---|
   | `providers/dbt/core/pyproject.toml` | New provider package |
   | `providers/dbt/core/provider.yaml` | Provider metadata |
   | `providers/dbt/core/src/.../operators/dbt.py` | `DbtKubernetesRunOperator` 
|
   | `providers/dbt/core/src/.../operators/run.sh` | Pod entrypoint script |
   | `providers/dbt/core/docs/` | Operator how-to, connections, security, 
changelog |
   | `providers/dbt/core/README.rst` | Package README |
   | `providers/dbt/core/tests/unit/.../test_dbt.py` | 26 unit tests (no pod 
created) |
   | `providers/dbt/core/tests/system/.../example_dbt_kubernetes.py` | System 
test / example Dag |
   
   ### Design choices
   
   - **One entrypoint script (`run.sh`)**: the Python operator constructs a set 
of
     environment variables and delegates to a bundled bash script. This keeps 
the
     operator thin and makes the lifecycle trivially inspectable via pod logs.
   - **`steps` not just dbt commands**: the parameter accepts any shell 
command, so
     users can include setup steps (`uv sync`, `pip install …`) without needing 
a
     separate operator or custom image.
   - **`artifact_conn_id` required with `artifact_dest`**: credentials are 
resolved
     on the worker and injected as env vars; the pod never touches Airflow 
connections
     directly. This is documented in `docs/security.rst`.
   - **git repo caching**: slug-based S3/GCS key per DAG + repo + branch; the 
operator
     updates the cache on every successful clone and falls back to it on clone 
failure.
   - **Optional cloud providers**: `amazon` and `google` extras are guarded with
     `AirflowOptionalProviderFeatureException`; the base package only requires
     `apache-airflow-providers-cncf-kubernetes`.
   
   ---
   
   
   ##### Was generative AI tooling used to co-author this PR?
   
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   Generated-by: Claude Code (claude-sonnet-4.6) following [the 
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   ---
   
   * Read the **[Pull Request 
Guidelines](https://github.com/apache/airflow/blob/main/contributing-docs/05_pull_requests.rst#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](https://cwiki.apache.org/confluence/display/AIRFLOW/Airflow+Improvement+Proposals))
 is needed.
   * When adding dependency, check compliance with the [ASF 3rd Party License 
Policy](https://www.apache.org/legal/resolved.html#category-x).
   * For significant user-facing changes create newsfragment: 
`{pr_number}.significant.rst`, in 
[airflow-core/newsfragments](https://github.com/apache/airflow/tree/main/airflow-core/newsfragments).
 You can add this file in a follow-up commit after the PR is created so you 
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