That's pretty much the baseline when dealing with any software system Exactly. And now instead of one system, he has 11. All it takes is inheriting th

That's pretty much the baseline when dealing with any software system Exactly. And now instead of one system, he has 11. All it takes is inheriting the latest version of an image He is not using "an image". From the article: "After the Alpine Linux 3.9.1 release I noticed the official Docker images had not been updated so I built my own." I mean, this stuff is handled automatically by any CI/CD pipeline. He has not describe any CI/CD pipeline involved in his infrastructure. Yet another aspect he has to build. you can also sh into a container and upgrade it yourself Into all 10 containers.