从Google Container Registry w/o gcloud中提取私人泊坞窗图片

Question

我正在使用shippable将私有docker图像推送到Google Container Registry,然后我想从笔记本电脑本地或Google Compute Engine上的实例中提取.

我知道该命令gcloud preview docker pull gcr.io/projectID/image-name有效,但我不能依赖gcloud安装在每个人可能需要从中提取图像的机器上.

如果我docker-compose up -d在我的机器上运行,那么我会收到以下错误:

Pulling image gcr.io/projectID/image-name...
Pulling repository gcr.io/projectID/image-name
Traceback (most recent call last):
  File "<string>", line 3, in <module>
  File "/compose/build/docker-compose/out00-PYZ.pyz/compose.cli.main", line 31, in main
  File "/compose/build/docker-compose/out00-PYZ.pyz/compose.cli.docopt_command", line 21, in sys_dispatch
  File "/compose/build/docker-compose/out00-PYZ.pyz/compose.cli.command", line 27, in dispatch
  File "/compose/build/docker-compose/out00-PYZ.pyz/compose.cli.docopt_command", line 24, in dispatch
  File "/compose/build/docker-compose/out00-PYZ.pyz/compose.cli.command", line 59, in perform_command
  File "/compose/build/docker-compose/out00-PYZ.pyz/compose.cli.main", line 464, in up
  File "/compose/build/docker-compose/out00-PYZ.pyz/compose.project", line 208, in up
  File "/compose/build/docker-compose/out00-PYZ.pyz/compose.service", line 214, in recreate_containers
  File "/compose/build/docker-compose/out00-PYZ.pyz/compose.service", line 199, in create_container
  File "/compose/build/docker-compose/out00-PYZ.pyz/compose.progress_stream", line 37, in stream_output
  File "/compose/build/docker-compose/out00-PYZ.pyz/compose.progress_stream", line 50, in print_output_event
compose.progress_stream.StreamOutputError: Error: Status 403 trying to pull repository projectID/image-name: "Access denied."

有没有办法用某种形式的OAuth或密钥验证或访问图像？我想避免在每台需要拉动图像的机器上安装gcloud,并且图像必须保持私密.

我尝试过,gcloud preview docker -a但这不是我正在寻找的解决方案.

预先感谢您的任何帮助.

Answer 1

如果您想使用vanilla docker在不在Google Compute Engine(即本地)的计算机上使用Google容器注册表,您可以按照Google的说明操作.

两种主要方法是使用访问令牌或JSON密钥文件.

需要注意的是_token和_json_key你提供的用户名的实际值(-u)

访问令牌

$ docker login -e 1234@5678.com -u _token -p "$(gcloud auth print-access-token)" https://gcr.io

JSON密钥文件

$ docker login -e 1234@5678.com -u _json_key -p "$(cat keyfile.json)" https://gcr.io

要创建密钥文件,您可以按照以下说明操作:

1. 打开"凭据"页面.
2. 要设置新的服务帐户,请执行以下操作:
   • 单击添加凭据>服务帐户.
   • 选择是将服务帐户的公钥/私钥下载为标准P12文件,还是作为可由Google API客户端库加载的JSON文件.
   • 您的新公钥/私钥对会生成并下载到您的计算机上; 它是此密钥的唯一副本.您有责任安全地存储它.

您可以在此处查看有关生成密钥文件的Google文档.