[autotest] Forward calls to modify_host(s) to shards.
If a host gets locked after it was assigned to a shard, right now
only the master will know about it.
With this commit, calls to modify_host and modify_hosts will be
forwarded to the relevant shards, so locking of hosts will propagate.
BUG=None
DEPLOY=apache
TEST=Ran suites and called rpcs manually, also with failing shard rpcs.
Change-Id: I90ca34a4cefbdf55acd47ee6e8df872527b27285
Reviewed-on: https://chromium-review.googlesource.com/220850
Tested-by: Jakob Jülich <jakobjuelich@chromium.org>
Reviewed-by: Fang Deng <fdeng@chromium.org>
Commit-Queue: Jakob Jülich <jakobjuelich@chromium.org>
4 files changed