Values:
LOGGING_UNSPECIFIED (0):
The service determines the logging mode. The default is
LEGACY. Do not rely on the default logging behavior as
it may change in the future.
LEGACY (1):
Cloud Logging and Cloud Storage logging are
enabled.
GCS_ONLY (2):
Only Cloud Storage logging is enabled.
STACKDRIVER_ONLY (3):
This option is the same as CLOUD_LOGGING_ONLY.
CLOUD_LOGGING_ONLY (5):
Only Cloud Logging is enabled. Note that logs
for both the Cloud Console UI and Cloud SDK are
based on Cloud Storage logs, so neither will
provide logs if this option is chosen.
NONE (4):
Turn off all logging. No build logs will be
captured.
