Native gRPC health checker implementation#2316

Merged

mattklein123 merged 8 commits intoenvoyproxy:masterfrom

baranov1ch:grpc-health-checker

Jan 16, 2018

Commits on Jan 10, 2018

gRPC healthcheck: more test coverage and review nits
baranov1ch
committed

Commits on Jan 11, 2018

gRPC-healthcheck tests: add readbility
baranov1ch
committed

Commits on Jan 15, 2018

Merge branch 'master' into grpc-health-checker
baranov1ch
authored

Commits on Jan 16, 2018

gRPC healthchecker: use health.proto from vendored grpc
baranov1ch
committed