This adds keep_alive_once to send once keep alive request

[mgates]

This adds a method to send one keep-alive request. The Go client has a similar method, and also a method that takes a channel to listen to continuous requests on, but we didn't see an obvious way to doing that here (and we didn't need it).

Co-authored with @jcalvert

[davissp14]

Nice work! Not sure what's going on with the specs though, they seem to be passing locally.

[mgates]

Shucks. I was hopping that you'd have an idea - can we re-run it? it looks like a lot of unrelated stuff is failing.

[davissp14]

I went ahead and rebuilt master ( which was previously passing ) and that appears to be failing now as well. Doesn't appear to have anything to do with your code.

Will do some digging.

[codecov[bot]]

Codecov Report

Merging #112 into master will not change coverage. The diff coverage is 100%.

@@          Coverage Diff          @@
##           master   #112   +/-   ##
=====================================
  Coverage     100%   100%           
=====================================
  Files           7      7           
  Lines         586    602   +16     
=====================================
+ Hits          586    602   +16

Impacted Files	Coverage Δ
spec/etcdv3_spec.rb	100% <100%> (ø)	:arrow_up:
spec/etcdv3/lease_spec.rb	100% <100%> (ø)	:arrow_up:

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[davissp14]

Fixed it. I will need to make a point to update the specs to support rspec 3.7 and the latest GRPC updates.

[davissp14]

Thanks!