some work done

pkg/etcd/cluster.go

@@ -3,6 +3,7 @@ package etcd
 import (
 	"context"
 	"errors"
+	"strings"
 
 	"git.giftfish.de/ston1th/vipman/pkg/cluster"
 	//"go.etcd.io/etcd/clientv3"
@@ -52,6 +53,23 @@ func (c *Cluster) Get(k string) (v []byte, err error) {
 	return
 }
 
+func (c *Cluster) GetPrefix(k string) (m map[string][]byte, err error) {
+	r, err := c.cli.Get(c.ctx, c.kvPrefix+"/"+k, clientv3.WithPrefix())
+	if err != nil {
+		return
+	}
+	if len(r.Kvs) == 0 {
+		err = ErrKeyNotFound
+		return
+	}
+	m = make(map[string][]byte)
+	for _, kv := range r.Kvs {
+		k := strings.TrimPrefix(c.kvPrefix+"/", string(kv.Key))
+		m[k] = kv.Value
+	}
+	return
+}
+
 func (c *Cluster) Set(k string, v []byte) (err error) {
 	_, err = c.cli.Put(c.ctx, c.kvPrefix+"/"+k, string(v))
 	return