系统版本：Ubuntu 22.04.5-live-server-amd64

K8S 版本：v1.28.2

Containerd 版本： 1.7.27

kubelet logs

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kuberuntime_sandbox.go:72] "Failed to create sandbox for pod" err="rpc error: code = Unknown desc = failed to create containerd task: cgroups: cgroup mountpoint does not exist: unknown"

解决办法：

sudo mkdir /sys/fs/cgroup/systemd

sudo mount -t cgroup -o none,name=systemd cgroup /sys/fs/cgroup/systemd

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containerd logs

containerd[5314]: time="2023-03-31T15:15:55.621572039+08:00" level=warning msg="failed to load plugin io.containerd.grpc.v1.cri" error="invalid plugin config: `systemd_cgroup` only works for runtime io.containerd.runtime.v1.linux"

解决办法：

vim /etc/containerd/config.toml

      [plugins."io.containerd.grpc.v1.cri".containerd.default_runtime]
        runtime_type = "io.containerd.runtime.v1.linux"