Moved to google.golang.org/genproto/googleapis/api/annotations

Fixes #52

vendor/github.com/go-kit/kit/sd/lb/random.go

@@ -0,0 +1,32 @@
+package lb
+
+import (
+	"math/rand"
+
+	"github.com/go-kit/kit/endpoint"
+	"github.com/go-kit/kit/sd"
+)
+
+// NewRandom returns a load balancer that selects services randomly.
+func NewRandom(s sd.Subscriber, seed int64) Balancer {
+	return &random{
+		s: s,
+		r: rand.New(rand.NewSource(seed)),
+	}
+}
+
+type random struct {
+	s sd.Subscriber
+	r *rand.Rand
+}
+
+func (r *random) Endpoint() (endpoint.Endpoint, error) {
+	endpoints, err := r.s.Endpoints()
+	if err != nil {
+		return nil, err
+	}
+	if len(endpoints) <= 0 {
+		return nil, ErrNoEndpoints
+	}
+	return endpoints[r.r.Intn(len(endpoints))], nil
+}