added raft over tls

pkg/cluster/kv.go

@@ -1,55 +0,0 @@
-package cluster
-
-import (
-	"errors"
-	"sync"
-
-	"github.com/hashicorp/raft"
-)
-
-var ErrNotLeader = errors.New("not leader")
-
-type kv map[string][]byte
-
-type KV struct {
-	mu sync.Mutex
-	m  kv
-	r  *raft.Raft
-}
-
-func (kv *KV) Get(k string) []byte {
-	kv.mu.Lock()
-	defer kv.mu.Unlock()
-	return kv.m[k]
-}
-
-func (kv *KV) Set(k string, v []byte) error {
-	if kv.r.State() != raft.Leader {
-		return ErrNotLeader
-	}
-
-	c := &raftCmd{SET, k, v}
-	b, err := gob.Marshal(c)
-	if err != nil {
-		return err
-	}
-
-	f := kv.r.Apply(b, raftTimeout)
-	return f.Error()
-}
-
-// Delete deletes the given key.
-func (kv *KV) Delete(k string) error {
-	if kv.r.State() != raft.Leader {
-		return ErrNotLeader
-	}
-
-	c := &raftCmd{Op: DELETE, K: k}
-	b, err := gob.Marshal(c)
-	if err != nil {
-		return err
-	}
-
-	f := kv.r.Apply(b, raftTimeout)
-	return f.Error()
-}