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Make http://metadata.google.internal configurable #40317

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merged 2 commits into from Aug 7, 2020
Merged

Make http://metadata.google.internal configurable #40317

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efe0812
Make http://metadata.google.internal configurable
shawwn Jun 9, 2020
3b5dca4
Fix pylint errors
shawwn Aug 5, 2020
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10 changes: 8 additions & 2 deletions tensorflow/python/tpu/client/client.py
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Expand Up @@ -38,17 +38,23 @@
_ENDPOINTS_SEPARATOR = ','
_DEFAULT_ENV_VARIABLE = 'TPU_NAME'
_DISCOVERY_SERVICE_URL_ENV_VARIABLE = 'TPU_API_DISCOVERY_URL'
_GCE_METADATA_ENDPOINT = 'http://metadata.google.internal'
_GCE_METADATA_URL_ENV_VARIABLE = 'GCE_METADATA_IP'
_DEFAULT_ENDPOINT_PORT = '8470'


def _environment_discovery_url():
return os.environ.get(_DISCOVERY_SERVICE_URL_ENV_VARIABLE)


def _gce_metadata_endpoint():
return 'http://' + os.environ.get(
_GCE_METADATA_URL_ENV_VARIABLE,
'metadata.google.internal')


def _request_compute_metadata(path):
req = request.Request(
'%s/computeMetadata/v1/%s' % (_GCE_METADATA_ENDPOINT, path),
'%s/computeMetadata/v1/%s' % (_gce_metadata_endpoint(), path),
headers={'Metadata-Flavor': 'Google'})
resp = request.urlopen(req)
return _as_text(resp.read())
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