Docker登录身份验证令牌

我想从?/ .docker / config.json文件中获取docker登录auth.
但我在config.json文件中看不到auth令牌.
这是我的泊坞版.

docker version
Client:
 Version:      17.03.1-ce
 API version:  1.27
 Go version:   go1.7.5
 Git commit:   c6d412e
 Built:        Tue Mar 28 00:40:02 2017
 OS/Arch:      darwin/amd64

Server:
 Version:      17.03.1-ce
 API version:  1.27 (minimum version 1.12)
 Go version:   go1.7.5
 Git commit:   c6d412e
 Built:        Fri Mar 24 00:00:50 2017
 OS/Arch:      linux/amd64
 Experimental: true

当我运行cat~ / .docker / config.json时,我能看到的是

cat .docker/config.json
{
    "auths": {
        "https://index.docker.io/v1/": {}
    },"credsStore": "osxkeychain"
}%

根据Codeship documentation我应该看到

{
    "auths": {
        "https://index.docker.io/v1/": {
            "auth": "auth_key","email": "email"
        }
    }
}

我可以禁用在钥匙串中存储我的authkey吗？

我真的需要获得auth_key,我怎么能得到它？

谢谢