示例 aws ec2 容器服务云形成模板失败

Question

我正在尝试根据 aws 提供的示例设置堆栈 http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/quickref-ecs.html

堆栈开始创建集群/服务/任务等很好，但它没有将 ec2 容器注册到我的集群并且堆栈创建最终失败。

深入研究 /var/log/cloud-init-ouput.log 我发现了这个

+ yum install -y aws-cfn-bootstrap
Loaded plugins: priorities, update-motd, upgrade-helper


 One of the configured repositories failed (Unknown),
 and yum doesn't have enough cached data to continue. At this point the only
 safe thing yum can do is fail. There are a few ways to work "fix" this:

 1. Contact the upstream for the repository and get them to fix the problem.

 2. Reconfigure the baseurl/etc. for the repository, to point to a working
    upstream. This is most often useful if you are using a newer
    distribution release than is supported by the repository (and the
    packages for the previous distribution release still work).

 3. Disable the repository, so yum won't use it by default. Yum will then
    just ignore the repository until you permanently enable it again or use
    --enablerepo for temporary usage:

        yum-config-manager --disable <repoid>

 4. Configure the failing repository to be skipped, if it is unavailable.
    Note that yum will try to contact the repo. when it runs most commands,
    so will have to try and fail each time (and thus. yum will be be much
    slower). If it is a very temporary problem though, this is often a nice
    compromise:

        yum-config-manager --save --setopt=<repoid>.skip_if_unavailable=true

Cannot find a valid baseurl for repo: amzn-main/latest
Could not retrieve mirrorlist http://repo.ap-southeast-2.amazonaws.com/latest/main/mirror.list error was
12: Timeout on http://repo.ap-southeast-2.amazonaws.com/latest/main/mirror.list: (28, 'Connection timed out after 10001 milliseconds')

似乎在部署堆栈时，它无法访问网络进行 yum 安装。 通过 ssh 连接到盒子并运行

yum install -y aws-cfn-bootstrap

工作得很好。

任何线索阻止堆栈在部署时访问网络？

Answer 1

想通了。万一其他人掉进了这个兔子洞，我的子网上没有公共IP。因此它无法连接到互联网