Post Syndicated from original https://lwn.net/Articles/907613/

OCI containers are the most popular type
of Linux container, but they are not the only type, nor were they the
first. LXC (short for “LinuX
Containers”) predates Docker by several years, though it was also not the
first. LXC dates back to its first release in 2008; the earliest version of
Docker, which was tagged in 2013, was actually a wrapper around LXC.
The LXC project is still going strong and shows no signs of winding
down; LXC 5.0 was released in July and comes with a promise of support until
2027.