containerd + crun

I am a big fan of crun. now it’s time for containerd + crun

Install containerd and crun binary file and this /etc/containerd/config.toml:

version = 2
[plugins."io.containerd.runtime.v1.linux"]
  shim_debug = false
[plugins."io.containerd.grpc.v1.cri".containerd]
  default_runtime_name = "crun"
  [plugins."io.containerd.grpc.v1.cri".containerd.runtimes]
    [plugins."io.containerd.grpc.v1.cri".containerd.runtimes.crun]
      runtime_type = "io.containerd.runc.v2"
      [plugins."io.containerd.grpc.v1.cri".containerd.runtimes.crun.options]
        BinaryName = "/usr/local/bin/crun"
        SystemdCgroup = true
[plugins."io.containerd.grpc.v1.cri".containerd.runtimes.runsc]
  runtime_type = "io.containerd.runsc.v1"
  [plugins."io.containerd.grpc.v1.cri".containerd.runtimes.runsc.options]
    SystemdCgroup = true
[plugins."io.containerd.grpc.v1.cri".registry.mirrors]
  [plugins."io.containerd.grpc.v1.cri".registry.mirrors."docker.io"]
    endpoint = ["https:///mirror.blabla.com"]
[plugins."io.containerd.grpc.v1.cri".registry.configs."https://mirror.blabla.com".tls]
  insecure_skip_verify = true

How to verify ?

# crictl inspect f937078e32863|jq .info.runtimeOptions
{
  "binary_name": "/usr/local/bin/crun",
  "systemd_cgroup": true
}

that’s all

refer: https://github.com/containerd/containerd/discussions/6162

Update1:

you can get runtime name from “crictl pods”

$ sudo crictl pods
POD ID              CREATED              STATE               NAME                       NAMESPACE           ATTEMPT             RUNTIME
8cac4a0328c65       20 seconds ago       Ready               echo-5748d9c654-bb749      nick2               0                   crun
9155e163bb9b1       36 seconds ago       Ready               echo-65bd58d9d-bbrpf       nick2               0                   runc
26f202f3586eb       44 seconds ago       Ready               echo-65bd58d9d-55tfp       nick1               0                   runc
1b68827cedff3       2 minutes ago        Ready               echo-5d79b6f6f6-t8prb      default             4                   runsc