[GitHub] [airflow] pateash edited a comment on issue #16911: Error in passing metadata to DataprocClusterCreateOperator

[GitBox <gi...@apache.org>]

pateash edited a comment on issue #16911:
URL: https://github.com/apache/airflow/issues/16911#issuecomment-877698788


   found a workaround for though
   ```python
              path = f"gs://goog-dataproc-initialization-actions-{self.cfg.get('region')}/python/pip-install.sh"
   
               cluster_config =  ClusterGenerator(
                   project_id=self.cfg.get('project_id'),
                ...........
                   init_actions_uris=[
                       path
                   ],
                   metadata={'PIP_PACKAGES': 'pyyaml requests pandas openpyxl'},
                   properties=properties,
                   dag=dag
               ).make()
   
            return DataprocClusterCreateOperator(
               task_id='create_dataproc_cluster',
               cluster_name='my-cluster',
               project_id=self.cfg.get('project_id'),
               region=self.cfg.get('region'),
               cluster_config=cluster_config,
               dag=dag
           )
   ```
   
   @turbaszek @mik-laj @potiuk , I couldn't able to find an example where i will use new metadata field ( changed from DICT to  Sequence[Tuple[str, str]])
    for DataprocClusterCreateOperator() or DataprocCreateClusterOperator() for initialisations scripts installing PIP_PACKAGES.
   any time i tried to pass **[('PIP_PACKAGES', 'pyyaml requests pandas openpyxl')]** to metadata field, I get invalid metadata.
   How does this supposed to be passed, I couldn't able to find any guide in the docs as well?


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