# secretkey

在执行./prepare命令时，会在/data目录下生成一个secretkey文件，里面是16个字符。

该字符串的作用是给target的password加密（从harbor源码获知，ui/config/config.go文件代码）

```
// SecretKey returns the secret key to encrypt the password of target
func SecretKey() string {
    return uiConfig.Config["secret_key"].(string)
}
```

secretkey文件由prepare脚本生成（如果文件已存在，则读取内容；否则随机生成一个16长度的字符串，然后保存存在`$path/secretkey`文件中）：

> prepare

```
def get_secret_key(path):
    key_file = os.path.join(path, "secretkey")
    if os.path.isfile(key_file):
        with open(key_file, 'r') as f:
            key = f.read()
            print("loaded secret key")
        if len(key) != 16:
            raise Exception("secret key's length has to be 16 chars, current length: %d" % len(key))
        return key
    if not os.path.isdir(path):
        os.makedirs(path, mode=0600)
    key = ''.join(random.choice(string.ascii_letters+string.digits) for i in range(16))
    with open(key_file, 'w') as f:
        f.write(key)
        print("generated and saved secret key")
    return key
```

`$path`变量则为从参数`data-volume`得到（prepare文件代码）：

```
secret_key = get_secret_key(args.data_volume)
```

而`data-volume`则默认为`/data/`（prepare文件代码）：

```
parser.add_argument('--data-volume', dest='data_volume', default='/data/',type=str,help="the path of Harbor data volume, which is set in template of docker-compose.")
```


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