service: config load only on start, not init phase

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

util/ring/buffer.go

@@ -10,16 +10,16 @@ import (
 
 // Buffer is ring buffer
 type Buffer struct {
+	sync.RWMutex
 	streams map[string]*Stream
 	vals    []*Entry
 	size    int
-	sync.RWMutex
 }
 
 // Entry is ring buffer data entry
 type Entry struct {
-	Value     interface{}
 	Timestamp time.Time
+	Value     interface{}
 }
 
 // Stream is used to stream the buffer