增加容器健康检查

back/protos/health.proto

@@ -0,0 +1,22 @@
+syntax = "proto3";
+
+package com.ql.health;
+
+message HealthCheckRequest {
+  string service = 1;
+}
+
+message HealthCheckResponse {
+  enum ServingStatus {
+    UNKNOWN = 0;
+    SERVING = 1;
+    NOT_SERVING = 2;
+    SERVICE_UNKNOWN = 3;
+  }
+  ServingStatus status = 1;
+}
+
+service Health {
+  rpc Check(HealthCheckRequest) returns (HealthCheckResponse);
+  rpc Watch(HealthCheckRequest) returns (stream HealthCheckResponse);
+}