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A comment on Podman 4.0. Parent comment

Re:Podman 4.0 by peachy_no_pie on Tuesday February 22, 2022 @05:36PM (#30434854)
Podman uses runc as the default container runtime. Nerdctl uses containerd. There are probably other differences but that's a substantial one imo.
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Re:Podman 4.0 by mroche on Wednesday February 23, 2022 @01:13AM (#30438228)
This depends on the platform you're using. On Fedora and RHEL 9, the default runtime is crun. On RHEL 7 and RHEL 8, the default is runc. In any case they can be swapped as needed.

https://github.com/containers/crun

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Re:Podman 4.0 by raesene9 on Wednesday February 23, 2022 @10:09AM (#30441821)
I think that's mixing apples with oranges really, as containerd uses runc as well.

nerdctl is a client app which speaks to containerd, which is a long running daemon.

podman uses a different architecture (no long running daemon)

Both projects use runc to actually launch the containers.

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