Add sync => go-sync

sync/leader/options.go

@@ -0,0 +1,22 @@
+package leader
+
+type Options struct {
+	Nodes []string
+	Group string
+}
+
+type ElectOptions struct{}
+
+// Nodes sets the addresses of the underlying systems
+func Nodes(a ...string) Option {
+	return func(o *Options) {
+		o.Nodes = a
+	}
+}
+
+// Group sets the group name for coordinating leadership
+func Group(g string) Option {
+	return func(o *Options) {
+		o.Group = g
+	}
+}