boto CloudFormation BadRequest(400),例外:无

Question

我正在boto中实现CloudFormation并遇到了一个奇怪的异常.

[sebastian ~/test_project (develop)]$ ./manage.py --template cf-templates/test_project.json --stack labs --validate
Validating template cf-templates/test_project.json..
Template cf-templates/test_project.json is valid!
[sebastian ~/test_project (develop)]$ ./manage.py --template cf-templates/test_project.json --stack labs --start
Creating stack labs with template cf-templates/test_project.json..
Traceback (most recent call last):
  File "./manage.py", line 311, in <module>
    main()
  File "./manage.py", line 113, in main
    start_stack(cf_con, parser, args, config)
  File "./manage.py", line 261, in start_stack
    template_body=get_json_from_template(args.template))
  File "/usr/local/lib/python2.7/site-packages/boto/cloudformation/connection.py", line 208, in create_stack
    raise self.ResponseError(response.status, response.reason, body)
boto.exception.BotoServerError: BotoServerError: 400 Bad Request
None

如您所见,我正在执行两个命令.第一个打电话validate_template,没关系.第二个start_stack是这样的:

cf_con = cloudformation.connect_to_region(
    args.region,
    aws_access_key_id=config.get(
        args.config_section, 'aws_access_key_id'),
    aws_secret_access_key=config.get(
        args.config_section, 'aws_secret_access_key'))

cf_con.create_stack(
    args.stack,
    template_body=get_json_from_template(args.template))

我真的不知道问题可能是什么,因为我从boto回来的是None错误信息.但也许这表明了什么？

任何正确方向的指针都非常感谢!

PS.它可以使用相同的模板从AWS Console启动堆栈.DS.

Answer 1

感谢帮助garnaat,在调试时我看到以下内容:

2012-10-14 19:18:58,377 foo [ERROR]:400 Bad Request
2012-10-14 19:18:58,377 foo [ERROR]:{"Error":{"Code":"InsufficientCapabilitiesException","Message":"Requires capabilities : [CAPABILITY_IAM]","Type":"Sender"},"RequestId":"389d102d-1623-11e2-b536-cb51e58a0a52"}

所以我添加了代码的功能:

cf_con.create_stack(
    args.stack,
    template_body=get_json_from_template(args.template),
    capabilities=['CAPABILITY_IAM'])