[autotest] Add a new RPC interface, get_host_attribute.
Retrieve a host's attribute from afe_host_attributes table.
When you need to get only attribute info of a host, this RPC call is
lighter than using get_hosts RPC call.
DEPLOY=apache
BUG=chromium:215160
TEST=AUTOTEST_ROOT$ python
>>import common
>>from autotest_lib.server.cros.dynamic_suite import tools, frontend_wrappers
>>afe = frontend_wrappers.RetryingAFE(timeout_min=5, delay_sec=10)
>>afe.get_host_attribute('need_crash_logs', hostname=<host ip>)
Change-Id: I86bc17091c078823c270206d80bd572f2fbbeb95
Reviewed-on: https://chromium-review.googlesource.com/221510
Reviewed-by: Fang Deng <fdeng@chromium.org>
Commit-Queue: Mungyung Ryu <mkryu@google.com>
Tested-by: Mungyung Ryu <mkryu@google.com>
3 files changed