Hashicorp Vault upgrade: our entire Kubernetes cluster hit by a change in token review process

Today, let me talk about one of our most brilliant failure, hopefully, not in production. Dog goes "woof"Cat goes "meow"Bird goes "tweet"And everything fails https://www.youtube.com/watch?v=jofNR_WkoCE Story of a failed upgrade The story starts a Monday morning. We had planned to deploy some boring changes to the "productio...

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