We have been already using shim v2 (containerd-shim-runc-v2) on cgroup v2 hosts:
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func (daemon *Daemon) useShimV2() bool { |
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return cgroups.IsCgroup2UnifiedMode() |
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} |
We should use shim v2 on cgroup v1 hosts as well.
I think we can safely switch the default, but if we fear potential regression, probably we should have a new daemon flag like --containerd-shim-api=(1|2) which defaults to 1.
We have been already using shim v2 (
containerd-shim-runc-v2) on cgroup v2 hosts:moby/daemon/daemon_unix.go
Lines 1759 to 1761 in aaf470e
We should use shim v2 on cgroup v1 hosts as well.
I think we can safely switch the default, but if we fear potential regression, probably we should have a new daemon flag like
--containerd-shim-api=(1|2)which defaults to1.