This talk by Bryan Cantrill on the history of OS-level virtualization is great. https://youtu.be/hgN8pCMLI2U https://youtu.be/hgN8pCMLI2U Apparently the first

This talk by Bryan Cantrill on the history of OS-level virtualization is great. https://youtu.be/hgN8pCMLI2U https://youtu.be/hgN8pCMLI2U Apparently the first version of Jails was a few hundred lines of code.