I've build the following script:

import boto
import sys
import gcs_oauth2_boto_plugin

def check_size_lzo(ds):

# URI scheme for Cloud Storage.

    CLIENT_ID = 'myclientid'
    CLIENT_SECRET = 'mysecret'

    GOOGLE_STORAGE = 'gs'

    dir_file= 'date_id={ds}/apollo_export_{ds}.lzo'.format(ds=ds)



    gcs_oauth2_boto_plugin.SetFallbackClientIdAndSecret(CLIENT_ID, CLIENT_SECRET)
    uri = boto.storage_uri('my_bucket/data/apollo/prod/'+ dir_file, GOOGLE_STORAGE)
    key = uri.get_key()



    if key.size < 45379959:
        raise ValueError('umg lzo file is too small, investigate')
    else:
        print('umg lzo file is %sMB' % round((key.size/1e6),2))



if __name__ == "__main__":

     check_size_lzo(sys.argv[1])

It works fine locally but when I try and run on kubernetes cluster I get the following error:

boto.exception.GSResponseError: GSResponseError: 403 Access denied to 'gs://my_bucket/data/apollo/prod/date_id=20180628/apollo_export_20180628.lzo'

I have updated the .boto file on my cluster and added my oauth client id and secret but still having the same issue.

Would really appreciate help resolving this issue.

Many thanks!