Make the debug handler an actual thing that can be set by users

server/debug/debug.go

@@ -0,0 +1,27 @@
+package debug
+
+import (
+	proto "github.com/micro/go-micro/server/debug/proto"
+
+	"golang.org/x/net/context"
+)
+
+// The debug handler represents an internal server handler
+// used to determine health, status and env info about
+// a service node. It's akin to Google's /statusz, /healthz,
+// and /varz
+type DebugHandler interface {
+	Health(ctx context.Context, req *proto.HealthRequest, rsp *proto.HealthResponse) error
+}
+
+// Our own internal handler
+type debug struct{}
+
+var (
+	DefaultDebugHandler = new(debug)
+)
+
+func (d *debug) Health(ctx context.Context, req *proto.HealthRequest, rsp *proto.HealthResponse) error {
+	rsp.Status = "ok"
+	return nil
+}