fix: renew the session token when the token expires #683
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This PR fix #678
In a Kubernetes context, when running a very long process, we can easily fall into the
ExpiredToken
error. In order to not introduce any performance degradation, I propose to keep to global variable caching the session token but clear it when catching this specific error. The session will be renewed by reading again the projected volume/var/run/secrets/eks.amazonaws.com/serviceaccount/token
.