added raft over tls

pkg/raft/cluster.go

@@ -0,0 +1,36 @@
+package raft
+
+import (
+	"errors"
+
+	"git.giftfish.de/ston1th/vipman/pkg/cluster"
+	"github.com/hashicorp/raft"
+)
+
+type Cluster struct {
+	kv *KV
+	r  *raft.Raft
+
+	stepdown  chan struct{}
+	stop      chan struct{}
+	done      chan struct{}
+	Callbacks cluster.Callbacks
+}
+
+func NewCluster(callbacks cluster.Callbacks) (cluster.Cluster, error) {
+	if callbacks.Leader == nil {
+		return nil, errors.New("Leader is nil")
+	}
+	if callbacks.Follower == nil {
+		return nil, errors.New("Follower is nil")
+	}
+	return &Cluster{
+		kv: &KV{
+			m: make(map[string][]byte),
+		},
+		stepdown:  make(chan struct{}, 1),
+		stop:      make(chan struct{}, 1),
+		done:      make(chan struct{}, 1),
+		Callbacks: callbacks,
+	}, nil
+}