Retry if AWS API returns None

[jaksonwkr]

Issue #, if available:

#271

Description of changes:

Retry command aws eks describe-cluster if API returns None.

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[micahhausler]

Is this if the cluster isn't yet active?

If so, rather than breaking, can you add a call just before the describe-cluster

aws eks wait cluster-active \
    --region=${AWS_DEFAULT_REGION} \
    --name=${CLUSTER_NAME}

[jaksonwkr]

Hi @micahhausler, thanks for your feedback.
I did a few more tests and checked that is because the cluster isn't active yet. I'll change to wai until the cluster is ready.

[micahhausler]

LGTM Thanks!