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You're right that LXC containers have a similar API compared to Docker, but I think developers often underestimate the benefit of the community around a certain technology.

Docker has significantly better documentation, extensions, package management tools, and third-party integrations. Overall, Docker has an incredibly more robust community than LXC or closer competitors like Kubernetes, and those features are just as important as the API for developers.

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The point of the LXC is, you get a full blown standalone linux, rather than a single process - this simplifies everything a lot, meaning you don't have to have that much documentation about it in the first place.

Can you clarify what "full-blown standalone Linux" means? It sounds like running a separate kernel, but since we're talking containers rather than VMs, this can't be it.

It is shared kernel, separate userspace.

It uses: X-namespaces (network, pid, user, ...) and cgroups to separate those userspaces from each other.

I have community server running debian in which there are 10+ LXC containers running in which people are given normal root access, one container per user.

So it's the same as with Docker.

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