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>To make a point: do we need docker? No, but writing installable software is hard

Writing installable software doesn't help with isolation, self healing and scalability. In a microservice world you kind of need Docker/Kubernetes.

Hum... Docker isn't a great solution for isolation (it can do some of it, it promises way more than it can do).

Your system's scalability is completely defined by how you architect it, and Docker changes nothing.

And WTF is self healing? Docker can't fix any ops problem that it didn't create.

>And WTF is self healing? Docker can't fix any ops problem that it didn't create.

The gp you replied to mentioned both "Docker/Kubernetes"

It's the Kubernetes management layer of Docker-style containers (in pods) that helps with monitoring and restarts: https://www.google.com/search?q=kubernetes+self-healing

Agreed. Could you please share your thoughts on the best current solution for isolation? Thanks in advance!

VMs are designed to provide isolation. Docker depends on what Linux provides, and Linux puts less and less importance on it as the time passes.

Um. VMs were doing the thing you said before there was Docker