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by sleepybrett 2817 days ago
We've been using kube2iam for this for a couple of years.

You just create a role give it an assume role policy that allows the node to assume it. Then annotate your pod w/ the role arn. When they make a call to get their instance profile you get the role instead.

It's a little annoying in that your pod code thinks its making a metadata call (which is super super fast), but what is actually happening is kube2iam intercepted that and will make a sts:assumerole call... which takes forever. So people just need to set their timeout a little higher than normal.

https://github.com/jtblin/kube2iam