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by cyphar 2521 days ago
LXC does have a container manager though, which is a single process that stays alive for the life of a single container. Within runc (the runtime Docker uses), we don't have a container manager but the downside is that now the upper level needs to keep alive the descriptors and other kernel objects that allow for safe container management by the runtime.

[I maintain runc, and collaborate with the LXC folks.]