Open-source alternatives to Dockerlite

Boot2Docker is a minimal Linux distribution that boots entirely from RAM to turn any machine into a Docker host. It is delivered as a bootable ISO image that can be written to SD cards, USB sticks, or hard disks, starting Docker containers in about five seconds without requiring a full operating system installation. The system is preconfigured for use as a VirtualBox virtual machine, with persistent disk mounting that automatically stores Docker images, containers, volumes, and SSH keys across restarts. It supports host-to-container file sharing through VirtualBox Guest Additions integration,

lmctfy (pronounced l-m-c-t-fi, IPA: /ɛlɛmsitifаɪ/) is the open source version of Google’s container stack, which provides Linux application containers. These containers allow for the isolation of resources used by multiple applications running on a single machine. This gives the applications the…

LXD is a unified platform for managing both system containers and virtual machines through a single REST API and command-line interface. It provides a programmatic HTTP interface for controlling the full lifecycle of instances, enabling automation and integration with external tools. The system runs unprivileged containers with per-instance UID/GID mappings, seccomp filters, and AppArmor profiles for kernel-level isolation, while supporting multiple storage backends including directory, Btrfs, LVM, ZFS, Ceph, LINSTOR, and TrueNAS through a unified driver interface. The platform distinguishes