[GitHub] [beam] kennknowles opened a new issue, #19171: Cannot deploy job to Dataflow with RuntimeValueProvider

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

kennknowles opened a new issue, #19171:
URL: https://github.com/apache/beam/issues/19171

   I cannot deploy an apache beam job to Cloud Dataflow that contains runtime value parameters.
   
   The standard use case is with Cloud Dataflow Templates which use RuntimeValueProvider to get template parameters.
   
   When trying to call `get` on the parameter, I always get an error like:
   
   
   ```
   
   apache_beam.error.RuntimeValueProviderError: RuntimeValueProvider(option: myparam, type: str, default_value:
   'defalut-value').get() not called from a runtime context
   
   ```
   
    
   
   A minimal example:
   ```
   
   class UserOptions(PipelineOptions):
       @classmethod
       def _add_argparse_args(cls, parser):
    
         parser.add_value_provider_argument('--myparam', type=str, default='default-value')
   
   def run(argv=None):
   
      parser = argparse.ArgumentParser()
       known_args, pipeline_args = parser.parse_known_args(argv)
   
      pipeline_options = PipelineOptions(pipeline_args)
       pipeline_options.view_as(SetupOptions).save_main_session
   = True
       google_cloud_options = pipeline_options.view_as(GoogleCloudOptions)
       # insert google
   cloud options here, or pass them in arguments
       standard_options = pipeline_options.view_as(StandardOptions)
   
      standard_options.runner = 'DataflowRunner'
       user_options = pipeline_options.view_as(UserOptions)
   
      p = beam.Pipeline(options=pipeline_options)
       param = user_options.myparam.get() # This line is
   the issue
       result = p.run()
       result.wait_until_finish()
   
   
   if __name__ == '__main__':
     
    run()
   
   ```
   
   I would expect that the runtime context would be ignored when running the script locally.
   
   Imported from Jira [BEAM-5466](https://issues.apache.org/jira/browse/BEAM-5466). Original Jira may contain additional context.
   Reported by: mackenzie-orange.


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