配置国内镜像源

vi /etc/containerd/config.toml

https://------.mirror.aliyuncs.com 私有镜像仓库位址请自行阿里云获取

    [plugins."io.containerd.grpc.v1.cri".registry]
      [plugins."io.containerd.grpc.v1.cri".registry.mirrors]
        [plugins."io.containerd.grpc.v1.cri".registry.mirrors."docker.io"]
          endpoint = ["https://------.mirror.aliyuncs.com", "https://registry-1.docker.io"]

使用私有镜像仓库

[plugins."io.containerd.grpc.v1.cri".registry]
   [plugins."io.containerd.grpc.v1.cri".registry.mirrors]
       [plugins."io.containerd.grpc.v1.cri".registry.mirrors."docker.io"]
          		endpoint = ["https://registry-1.docker.io"] //到此为配置文件默认生成，之后为需要添加的内容
       [plugins."io.containerd.grpc.v1.cri".registry.mirrors."192.168.66.4"]
         		endpoint = ["https://192.168.66.4:443"]
   [plugins."io.containerd.grpc.v1.cri".registry.configs]
   		 [plugins."io.containerd.grpc.v1.cri".registry.configs."192.168.66.4".tls]
          		insecure_skip_verify = true
       	 [plugins."io.containerd.grpc.v1.cri".registry.configs."192.168.66.4".auth]
          		username = "admin"
          		password = "Harbor12345"

systemctl daemon-reload
systemctl restart containerd
systemctl status containerd

配置完成后config.toml

version = 2
root = "/var/lib/containerd"
state = "/run/containerd"
plugin_dir = ""
disabled_plugins = []
required_plugins = []
oom_score = 0

[grpc]
  address = "/run/containerd/containerd.sock"
  tcp_address = ""
  tcp_tls_cert = ""
  tcp_tls_key = ""
  uid = 0
  gid = 0
  max_recv_message_size = 16777216
  max_send_message_size = 16777216

[ttrpc]
  address = ""
  uid = 0
  gid = 0

[debug]
  address = ""
  uid = 0
  gid = 0
  level = ""

[metrics]
  address = ""
  grpc_histogram = false

[cgroup]
  path = ""

[timeouts]
  "io.containerd.timeout.shim.cleanup" = "5s"
  "io.containerd.timeout.shim.load" = "5s"
  "io.containerd.timeout.shim.shutdown" = "3s"
  "io.containerd.timeout.task.state" = "2s"

[plugins]
  [plugins."io.containerd.gc.v1.scheduler"]
    pause_threshold = 0.02
    deletion_threshold = 0
    mutation_threshold = 100
    schedule_delay = "0s"
    startup_delay = "100ms"
  [plugins."io.containerd.grpc.v1.cri"]
    disable_tcp_service = true
    stream_server_address = "127.0.0.1"
    stream_server_port = "0"
    stream_idle_timeout = "4h0m0s"
    enable_selinux = false
    selinux_category_range = 1024
    sandbox_image = "k8s.gcr.io/pause:3.2"
    stats_collect_period = 10
    systemd_cgroup = false
    enable_tls_streaming = false
    max_container_log_line_size = 16384
    disable_cgroup = false
    disable_apparmor = false
    restrict_oom_score_adj = false
    max_concurrent_downloads = 3
    disable_proc_mount = false
    unset_seccomp_profile = ""
    tolerate_missing_hugetlb_controller = true
    disable_hugetlb_controller = true
    ignore_image_defined_volumes = false
    [plugins."io.containerd.grpc.v1.cri".containerd]
      snapshotter = "overlayfs"
      default_runtime_name = "runc"
      no_pivot = false
      disable_snapshot_annotations = true
      discard_unpacked_layers = false
      [plugins."io.containerd.grpc.v1.cri".containerd.default_runtime]
        runtime_type = ""
        runtime_engine = ""
        runtime_root = ""
        privileged_without_host_devices = false
        base_runtime_spec = ""
      [plugins."io.containerd.grpc.v1.cri".containerd.untrusted_workload_runtime]
        runtime_type = "io.containerd.runtime.v1.linux"
        runtime_engine = "/usr/bin/kata-runtime"
        runtime_root = ""
        privileged_without_host_devices = false
        base_runtime_spec = ""
      [plugins."io.containerd.grpc.v1.cri".containerd.runtimes]
        [plugins."io.containerd.grpc.v1.cri".containerd.runtimes.runc]
          runtime_type = "io.containerd.runc.v2"
          runtime_engine = ""
          runtime_root = ""
          privileged_without_host_devices = false
          base_runtime_spec = ""
          [plugins."io.containerd.grpc.v1.cri".containerd.runtimes.runc.options]
         [plugins."io.containerd.grpc.v1.cri".containerd.runtimes.kata]
         runtime_type = "io.containerd.kata.v2"
      [plugins."io.containerd.grpc.v1.cri".containerd.runtimes.katacli]
         runtime_type = "io.containerd.runc.v1"
         [plugins."io.containerd.grpc.v1.cri".containerd.runtimes.katacli.options]
           NoPivotRoot = false
           NoNewKeyring = false
           ShimCgroup = ""
           IoUid = 0
           IoGid = 0
           BinaryName = "/usr/bin/kata-runtime"
           Root = ""
           CriuPath = ""
           SystemdCgroup = false
    [plugins."io.containerd.grpc.v1.cri".cni]
      bin_dir = "/opt/cni/bin"
      conf_dir = "/etc/cni/net.d"
      max_conf_num = 1
      conf_template = ""
    [plugins."io.containerd.grpc.v1.cri".registry]
      [plugins."io.containerd.grpc.v1.cri".registry.mirrors]
        [plugins."io.containerd.grpc.v1.cri".registry.mirrors."docker.io"]
          endpoint = ["https://------.mirror.aliyuncs.com", "https://registry-1.docker.io"]
        [plugins."io.containerd.grpc.v1.cri".registry.mirrors."192.168.66.4"]
          endpoint = ["https://192.168.66.4:443"]
      [plugins."io.containerd.grpc.v1.cri".registry.configs]
        [plugins."io.containerd.grpc.v1.cri".registry.configs."192.168.66.4".tls]
          insecure_skip_verify = true
        [plugins."io.containerd.grpc.v1.cri".registry.configs."192.168.66.4".auth]
          username = "admin"
          password = "Harbor12345"
    [plugins."io.containerd.grpc.v1.cri".image_decryption]
      key_model = ""
    [plugins."io.containerd.grpc.v1.cri".x509_key_pair_streaming]
      tls_cert_file = ""
      tls_key_file = ""
  [plugins."io.containerd.internal.v1.opt"]
    path = "/opt/containerd"
  [plugins."io.containerd.internal.v1.restart"]
    interval = "10s"
  [plugins."io.containerd.metadata.v1.bolt"]
    content_sharing_policy = "shared"
  [plugins."io.containerd.monitor.v1.cgroups"]
    no_prometheus = false
  [plugins."io.containerd.runtime.v1.linux"]
    shim = "containerd-shim"
    runtime = "runc"
    runtime_root = ""
    no_shim = false
    shim_debug = false
  [plugins."io.containerd.runtime.v2.task"]
    platforms = ["linux/amd64"]
  [plugins."io.containerd.service.v1.diff-service"]
    default = ["walking"]
  [plugins."io.containerd.snapshotter.v1.devmapper"]
    root_path = ""
    pool_name = ""
    base_image_size = ""
    async_remove = false