For those that are not too versed in distributed systems, kubernetes or docker I highly suggest you read the comments on the post. I am going to promot myself a bit here and link directly to my comment https://medium.com/@rmb938/thanks-dan-for-the-great-post-1ef...

Sadly a large environment was brought down due to not following best practices. This event probably could have been prevent or at least have very little impact if best practices were followed.