2016-10-04 114 views
0

我从详细的here登录到VM映像的Google Compute Engine实例。无法从Google Container VM映像访问服务帐户的元数据令牌

我想按照给出的说明访问私有容器注册表,但在请求令牌时出现403错误。

尝试这样的:

$ METADATA=http://metadata.google.internal/computeMetadata/v1 
$ SVC_ACCT=$METADATA/instance/service-accounts/default 
$ ACCESS_TOKEN=$(curl -H 'Metadata-Flavor: Google' $SVC_ACCT/token \ 
    | cut -d'"' -f 4) 
$ docker login -e [email protected] -u _token -p $ACCESS_TOKEN https://gcr.io 
$ docker run --rm gcr.io/<your-project>/<your-image> <command> 

..我没有发现任何访问​​令牌和失败。

试图拨打我可以看到这个元数据:

> curl "http://metadata.google.internal/computeMetadata/v1/instance/service-accounts/default/" -H "Metadata-Flavor: Google" 

aliases 
email 
scopes 
token 

...但是当我试图让令牌我有一个403错误:

> curl "http://metadata.google.internal/computeMetadata/v1/instance/service-accounts/default/token" -H "Metadata-Flavor: Google" 

<!DOCTYPE html> 
<html lang=en> 
    <meta charset=utf-8> 
    <meta name=viewport content="initial-scale=1, minimum-scale=1, width=device-width"> 
    <title>Error 403 (Forbidden)!!1</title> 
    <style> 
    *{margin:0;padding:0}html,code{font:15px/22px arial,sans-serif}html{background:#fff;color:#222;padding:15px}body{margin:7% auto 0;max-width:390px;min-height:180px;padding:30px 0 15px}* > body{background:url(//www.google.com/images/errors/robot.png) 100% 5px no-repeat;padding-right:205px}p{margin:11px 0 22px;overflow:hidden}ins{color:#777;text-decoration:none}a img{border:0}@media screen and (max-width:772px){body{background:none;margin-top:0;max-width:none;padding-right:0}}#logo{background:url(//www.google.com/images/branding/googlelogo/1x/googlelogo_color_150x54dp.png) no-repeat;margin-left:-5px}@media only screen and (min-resolution:192dpi){#logo{background:url(//www.google.com/images/branding/googlelogo/2x/googlelogo_color_150x54dp.png) no-repeat 0% 0%/100% 100%;-moz-border-image:url(//www.google.com/images/branding/googlelogo/2x/googlelogo_color_150x54dp.png) 0}}@media only screen and (-webkit-min-device-pixel-ratio:2){#logo{background:url(//www.google.com/images/branding/googlelogo/2x/googlelogo_color_150x54dp.png) no-repeat;-webkit-background-size:100% 100%}}#logo{display:inline-block;height:54px;width:150px} 
    </style> 
    <a href=//www.google.com/><span id=logo aria-label=Google></span></a> 
    <p><b>403.</b> <ins>That’s an error.</ins> 
    <p>Your client does not have permission to get URL <code>/computeMetadata/v1/instance/service-accounts/default/token</code> from this server. <ins>That’s all we know.</ins> 

我已经设置了default compute engine service account to be an owner (这是编辑),并再次尝试,没有运气。

我已经试过SO解决方案详见下文,他们不工作:

这里咨询了谷歌文档:

有什么我缺少如何获得成功的身份验证?非常感谢,如果您有任何建议!

回答

2

赞美SO神,我创建的实例没有正确的范围。

您可以在编辑实例屏幕中检查GCE用户界面,由于在API请求中传递{"https://www.googleapis.com/auth/cloud-platform"}而不是["https://www.googleapis.com/auth/cloud-platform"],所以我没有Google API Cloud访问权限。

现在,此命令正确返回身份验证令牌:

> curl "http://metadata.google.internal/computeMetadata/v1/instance/service-accounts/default/token" -H "Metadata-Flavor: Google" 

{"access_token":"ya29.XXXXX","expires_in":3599,"token_type":"Bearer"} 
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