seaweedfs/weed/filer/etcd/etcd_store_kv.go
Mesar Hameed a90b777ff4
Feat: etcd filer store keys should have customizable prefix (#4484)
An etcd cluster is not necessarily only dedicated to seaweedfs.
This security enhancement adds a customizable key_prefix option to the etcd filer store.
This will allow an etcd cluster administrator to limit the seaweedfs etcd user to only read/write a subset of keys under the
key_prefix, instead of all keys on the etcd cluster.
2023-05-18 23:08:56 -07:00

45 lines
894 B
Go

package etcd
import (
"context"
"fmt"
"github.com/seaweedfs/seaweedfs/weed/filer"
)
func (store *EtcdStore) KvPut(ctx context.Context, key []byte, value []byte) (err error) {
_, err = store.client.Put(ctx, store.etcdKeyPrefix + string(key), string(value))
if err != nil {
return fmt.Errorf("kv put: %v", err)
}
return nil
}
func (store *EtcdStore) KvGet(ctx context.Context, key []byte) (value []byte, err error) {
resp, err := store.client.Get(ctx, store.etcdKeyPrefix + string(key))
if err != nil {
return nil, fmt.Errorf("kv get: %v", err)
}
if len(resp.Kvs) == 0 {
return nil, filer.ErrKvNotFound
}
return resp.Kvs[0].Value, nil
}
func (store *EtcdStore) KvDelete(ctx context.Context, key []byte) (err error) {
_, err = store.client.Delete(ctx, store.etcdKeyPrefix + string(key))
if err != nil {
return fmt.Errorf("kv delete: %v", err)
}
return nil
}