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LXC feels more UNIXy. Docker command line tools and formats feel awkward in that regard (which helped to popularize the thing by pushing this one specific view).

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I agree. I had some VMs that I wanted to turn into containers. With LXC it was a breeze, and the result is very much like a "lightweight VM". Docker seems more like putting a single application process in a container, which is a very different thing. And if I want to do that, I'll seriously consider running the application in a unikernel (e.g. OSv) instead.

By the way, the lightweight VM project is currently the LXD by Ubuntu/Canonical.

Yeah, LXD is what I have been using. Maybe I should have said "LXC/LXD" instead of just "LXC".

If you are trying to use docker to build lightweight VMs you are really swimming upstream. In the (docker, etc) container world they use the phrase "pets not cattle". Containers are designed to be stateless (nothing is stored in the container) and to be spun up and down as demand changes.

https://devops.stackexchange.com/questions/653/what-is-the-d...

If you want to build a mini-VM using containers, LXC is a great choice. If you want to deploy software, easily, with CI/CD and [auto-]scaling, then containers are what you want.

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