
LXD
7.0#1 in container enginesFrom $25 a yearFree planWebAPILinuxSelf-hosted
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LXD suits Linux users who need to manage system containers, virtual machines, or both through command-line, API, or web interfaces. It also offers integrations for users of tools such as Juju, MAAS, Ansible, Terraform, Puppet Bolt, and Packer.
systemd-nspawn suits Linux users who need to run commands or operating systems in namespace containers and can work within its privilege and networking limits.