I think that author just does not have experience outside of what he does. Maybe his systems can fall back to sane defaults. But what is sane default if you have to communicate with 3rd party server and your system is worthless when connection is not there? You have to have ip&#x2F;domain name configured.<p>For cars if something is wrong then in some cases you can start and even drive but users get warning. If there is something really wrong car will not start.<p>So I think what author suggests is at least asking for trouble.<p>Almost everywhere as quoted:<p>&quot;Everything in this post is about improving the deployment process for your applications, specifically those running in a Docker container, but these ideas should apply almost anywhere.&quot;