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I think the issue is also that for a long time (or still is?) it was Ubuntu only.

• StreamBright 8y ago
  I don’t think so https://discuss.linuxcontainers.org/t/lxd-on-centos-7/1250 https://discuss.linuxcontainers.org/t/lxd-on-centos-7/1250
• simosx 8y ago
  There were some issues with specific kernel features not being upstreamed timely. Having said that, here is a distribution usage for the snap package of LXD, https://snapcraft.io/lxd https://snapcraft.io/lxd (see that the end of the page).
  • stgraber 8y ago
    At this point, the only feature that I'm aware of which we have in the Ubuntu kernel and hasn't been merged upstream yet is support for overlayfs inside user namespaces. The other big one for a long time was fuse inside user namespaces, but that has been merged upstream in 4.18. Some of the AppArmor features were also a sticky point for a while as upstream was lagging behind quite a bit, but the AppArmor maintainer has since fixed that, so recent Linux kernels have everything that we use.
• cyphar 8y ago
  LXC has worked on many distributions for a very long time, as has LXD. Most of the time, all of the main developers have been Canonical employees (with some exceptions), so this might've impacted people's view on what it supported. Also LXD's recommended distribution is through snaps (which gives it an Ubuntu-only flavour) -- but it's available in many different repositories in many different distributions.