#   Copyright 2018-2022 Docker Inc.

#   Licensed under the Apache License, Version 2.0 (the "License");
#   you may not use this file except in compliance with the License.
#   You may obtain a copy of the License at

#       http://www.apache.org/licenses/LICENSE-2.0

#   Unless required by applicable law or agreed to in writing, software
#   distributed under the License is distributed on an "AS IS" BASIS,
#   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#   See the License for the specific language governing permissions and
#   limitations under the License.

#disabled_plugins = ["cri"]

#root = "/var/lib/containerd"
#state = "/run/containerd"
#subreaper = true
#oom_score = 0

#[grpc]
#  address = "/run/containerd/containerd.sock"
#  uid = 0
#  gid = 0

#[debug]
#  address = "/run/containerd/debug.sock"
#  uid = 0
#  gid = 0
#  level = "info"
disabled_plugins = []
imports = []
oom_score = 0
plugin_dir = ""
required_plugins = []
root = "/var/lib/containerd"
state = "/run/containerd"
temp = ""
version = 2

[cgroup]
  path = ""

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

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

[metrics]
  address = ""
  grpc_histogram = false

[plugins]

  [plugins."io.containerd.gc.v1.scheduler"]
    deletion_threshold = 0
    mutation_threshold = 100
    pause_threshold = 0.02
    schedule_delay = "0s"
    startup_delay = "100ms"

  [plugins."io.containerd.grpc.v1.cri"]
    device_ownership_from_security_context = false
    disable_apparmor = false
    disable_cgroup = false
    disable_hugetlb_controller = true
    disable_proc_mount = false
    disable_tcp_service = true
    enable_selinux = false
    enable_tls_streaming = false
    enable_unprivileged_icmp = false
    enable_unprivileged_ports = false
    ignore_image_defined_volumes = false
    max_concurrent_downloads = 3
    max_container_log_line_size = 16384
    netns_mounts_under_state_dir = false
    restrict_oom_score_adj = false
    sandbox_image = "registry.aliyuncs.com/k8sxio/pause:3.6"
    selinux_category_range = 1024
    stats_collect_period = 10
    stream_idle_timeout = "4h0m0s"
    stream_server_address = "127.0.0.1"
    stream_server_port = "0"
    systemd_cgroup = false
    tolerate_missing_hugetlb_controller = true
    unset_seccomp_profile = ""

    [plugins."io.containerd.grpc.v1.cri".cni]
      bin_dir = "/opt/cni/bin"
      conf_dir = "/etc/cni/net.d"
      conf_template = ""
      ip_pref = ""
      max_conf_num = 1

    [plugins."io.containerd.grpc.v1.cri".containerd]
      default_runtime_name = "runc"
      disable_snapshot_annotations = true
      discard_unpacked_layers = false
      ignore_rdt_not_enabled_errors = false
      no_pivot = false
      snapshotter = "overlayfs"

      [plugins."io.containerd.grpc.v1.cri".containerd.default_runtime]
        base_runtime_spec = ""
        cni_conf_dir = ""
        cni_max_conf_num = 0
        container_annotations = []
        pod_annotations = []
        privileged_without_host_devices = false
        runtime_engine = ""
        runtime_path = ""
        runtime_root = ""
        runtime_type = ""

        [plugins."io.containerd.grpc.v1.cri".containerd.default_runtime.options]

      [plugins."io.containerd.grpc.v1.cri".containerd.runtimes]

        [plugins."io.containerd.grpc.v1.cri".containerd.runtimes.runc]
          base_runtime_spec = ""
          cni_conf_dir = ""
          cni_max_conf_num = 0
          container_annotations = []
          pod_annotations = []
          privileged_without_host_devices = false
          runtime_engine = ""
          runtime_path = ""
          runtime_root = ""
          runtime_type = "io.containerd.runc.v2"

          [plugins."io.containerd.grpc.v1.cri".containerd.runtimes.runc.options]
            BinaryName = ""
            CriuImagePath = ""
            CriuPath = ""
            CriuWorkPath = ""
            IoGid = 0
            IoUid = 0
            NoNewKeyring = false
            NoPivotRoot = false
            Root = ""
            ShimCgroup = ""
            SystemdCgroup = true

      [plugins."io.containerd.grpc.v1.cri".containerd.untrusted_workload_runtime]
        base_runtime_spec = ""
        cni_conf_dir = ""
        cni_max_conf_num = 0
        container_annotations = []
        pod_annotations = []
        privileged_without_host_devices = false
        runtime_engine = ""
        runtime_path = ""
        runtime_root = ""
        runtime_type = ""

        [plugins."io.containerd.grpc.v1.cri".containerd.untrusted_workload_runtime.options]

    [plugins."io.containerd.grpc.v1.cri".image_decryption]
      key_model = "node"

    [plugins."io.containerd.grpc.v1.cri".registry]
      config_path = ""

      [plugins."io.containerd.grpc.v1.cri".registry.auths]

      [plugins."io.containerd.grpc.v1.cri".registry.configs]

      [plugins."io.containerd.grpc.v1.cri".registry.headers]

      [plugins."io.containerd.grpc.v1.cri".registry.mirrors."docker.io"]
        endpoint = ["https://docker.ofly.me"]

    [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.internal.v1.tracing"]
    sampling_ratio = 1.0
    service_name = "containerd"

  [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"]
    no_shim = false
    runtime = "runc"
    runtime_root = ""
    shim = "containerd-shim"
    shim_debug = false

  [plugins."io.containerd.runtime.v2.task"]
    platforms = ["linux/amd64"]
    sched_core = false

  [plugins."io.containerd.service.v1.diff-service"]
    default = ["walking"]

  [plugins."io.containerd.service.v1.tasks-service"]
    rdt_config_file = ""

  [plugins."io.containerd.snapshotter.v1.aufs"]
    root_path = ""

  [plugins."io.containerd.snapshotter.v1.btrfs"]
    root_path = ""

  [plugins."io.containerd.snapshotter.v1.devmapper"]
    async_remove = false
    base_image_size = ""
    discard_blocks = false
    fs_options = ""
    fs_type = ""
    pool_name = ""
    root_path = ""

  [plugins."io.containerd.snapshotter.v1.native"]
    root_path = ""

  [plugins."io.containerd.snapshotter.v1.overlayfs"]
    mount_options = []
    root_path = ""
    sync_remove = false
    upperdir_label = false

  [plugins."io.containerd.snapshotter.v1.zfs"]
    root_path = ""

  [plugins."io.containerd.tracing.processor.v1.otlp"]
    endpoint = ""
    insecure = false
    protocol = ""

[proxy_plugins]

[stream_processors]

  [stream_processors."io.containerd.ocicrypt.decoder.v1.tar"]
    accepts = ["application/vnd.oci.image.layer.v1.tar+encrypted"]
    args = ["--decryption-keys-path", "/etc/containerd/ocicrypt/keys"]
    env = ["OCICRYPT_KEYPROVIDER_CONFIG=/etc/containerd/ocicrypt/ocicrypt_keyprovider.conf"]
    path = "ctd-decoder"
    returns = "application/vnd.oci.image.layer.v1.tar"

  [stream_processors."io.containerd.ocicrypt.decoder.v1.tar.gzip"]
    accepts = ["application/vnd.oci.image.layer.v1.tar+gzip+encrypted"]
    args = ["--decryption-keys-path", "/etc/containerd/ocicrypt/keys"]
    env = ["OCICRYPT_KEYPROVIDER_CONFIG=/etc/containerd/ocicrypt/ocicrypt_keyprovider.conf"]
    path = "ctd-decoder"
    returns = "application/vnd.oci.image.layer.v1.tar+gzip"

[timeouts]
  "io.containerd.timeout.bolt.open" = "0s"
  "io.containerd.timeout.shim.cleanup" = "5s"
  "io.containerd.timeout.shim.load" = "5s"
  "io.containerd.timeout.shim.shutdown" = "3s"
  "io.containerd.timeout.task.state" = "2s"

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

[root@master01 ~]# kubeadm init \
--kubernetes-version=v1.28.2 \
--image-repository=registry.aliyuncs.com/google_containers \
--service-cidr=10.96.0.0/12 \
--pod-network-cidr=10.244.0.0/16 \
--cri-socket unix:///run/containerd/containerd.sock \
--v=5
I1127 09:11:04.933591    5740 interface.go:432] Looking for default routes with IPv4 addresses
I1127 09:11:04.933660    5740 interface.go:437] Default route transits interface "ens160"
I1127 09:11:04.933854    5740 interface.go:209] Interface ens160 is up
I1127 09:11:04.933888    5740 interface.go:257] Interface "ens160" has 2 addresses :[192.168.19.101/24 fe80::20c:29ff:fe65:281e/64].
I1127 09:11:04.933898    5740 interface.go:224] Checking addr  192.168.19.101/24.
I1127 09:11:04.933904    5740 interface.go:231] IP found 192.168.19.101
I1127 09:11:04.933917    5740 interface.go:263] Found valid IPv4 address 192.168.19.101 for interface "ens160".
I1127 09:11:04.933922    5740 interface.go:443] Found active IP 192.168.19.101 
I1127 09:11:04.933933    5740 kubelet.go:196] the value of KubeletConfiguration.cgroupDriver is empty; setting it to "systemd"
[init] Using Kubernetes version: v1.28.2
[preflight] Running pre-flight checks
I1127 09:11:04.940620    5740 checks.go:563] validating Kubernetes and kubeadm version
I1127 09:11:04.940641    5740 checks.go:168] validating if the firewall is enabled and active
I1127 09:11:04.951518    5740 checks.go:203] validating availability of port 6443
I1127 09:11:04.951913    5740 checks.go:203] validating availability of port 10259
I1127 09:11:04.951933    5740 checks.go:203] validating availability of port 10257
I1127 09:11:04.951946    5740 checks.go:280] validating the existence of file /etc/kubernetes/manifests/kube-apiserver.yaml
I1127 09:11:04.951956    5740 checks.go:280] validating the existence of file /etc/kubernetes/manifests/kube-controller-manager.yaml
I1127 09:11:04.951963    5740 checks.go:280] validating the existence of file /etc/kubernetes/manifests/kube-scheduler.yaml
I1127 09:11:04.952114    5740 checks.go:280] validating the existence of file /etc/kubernetes/manifests/etcd.yaml
I1127 09:11:04.952122    5740 checks.go:430] validating if the connectivity type is via proxy or direct
I1127 09:11:04.952144    5740 checks.go:469] validating http connectivity to first IP address in the CIDR
I1127 09:11:04.952158    5740 checks.go:469] validating http connectivity to first IP address in the CIDR
I1127 09:11:04.952165    5740 checks.go:104] validating the container runtime
I1127 09:11:04.974481    5740 checks.go:639] validating whether swap is enabled or not
I1127 09:11:04.974719    5740 checks.go:370] validating the presence of executable crictl
I1127 09:11:04.974748    5740 checks.go:370] validating the presence of executable conntrack
I1127 09:11:04.974947    5740 checks.go:370] validating the presence of executable ip
I1127 09:11:04.974961    5740 checks.go:370] validating the presence of executable iptables
I1127 09:11:04.974976    5740 checks.go:370] validating the presence of executable mount
I1127 09:11:04.974987    5740 checks.go:370] validating the presence of executable nsenter
I1127 09:11:04.975015    5740 checks.go:370] validating the presence of executable ebtables
I1127 09:11:04.975139    5740 checks.go:370] validating the presence of executable ethtool
I1127 09:11:04.975151    5740 checks.go:370] validating the presence of executable socat
I1127 09:11:04.975167    5740 checks.go:370] validating the presence of executable tc
I1127 09:11:04.975353    5740 checks.go:370] validating the presence of executable touch
I1127 09:11:04.975368    5740 checks.go:516] running all checks
I1127 09:11:04.981977    5740 checks.go:401] checking whether the given node name is valid and reachable using net.LookupHost
I1127 09:11:04.982153    5740 checks.go:605] validating kubelet version
I1127 09:11:05.026497    5740 checks.go:130] validating if the "kubelet" service is enabled and active
I1127 09:11:05.035875    5740 checks.go:203] validating availability of port 10250
I1127 09:11:05.036129    5740 checks.go:329] validating the contents of file /proc/sys/net/bridge/bridge-nf-call-iptables
I1127 09:11:05.036240    5740 checks.go:329] validating the contents of file /proc/sys/net/ipv4/ip_forward
I1127 09:11:05.036350    5740 checks.go:203] validating availability of port 2379
I1127 09:11:05.036371    5740 checks.go:203] validating availability of port 2380
I1127 09:11:05.036384    5740 checks.go:243] validating the existence and emptiness of directory /var/lib/etcd
[preflight] Pulling images required for setting up a Kubernetes cluster
[preflight] This might take a minute or two, depending on the speed of your internet connection
[preflight] You can also perform this action in beforehand using 'kubeadm config images pull'
I1127 09:11:05.036565    5740 checks.go:828] using image pull policy: IfNotPresent
I1127 09:11:05.054564    5740 checks.go:846] image exists: registry.aliyuncs.com/google_containers/kube-apiserver:v1.28.2
I1127 09:11:05.072632    5740 checks.go:846] image exists: registry.aliyuncs.com/google_containers/kube-controller-manager:v1.28.2
I1127 09:11:05.089009    5740 checks.go:846] image exists: registry.aliyuncs.com/google_containers/kube-scheduler:v1.28.2
I1127 09:11:05.109786    5740 checks.go:846] image exists: registry.aliyuncs.com/google_containers/kube-proxy:v1.28.2
W1127 09:11:05.128647    5740 checks.go:835] detected that the sandbox image "registry.aliyuncs.com/k8sxio/pause:3.6" of the container runtime is inconsistent with that used by kubeadm. It is recommended that using "registry.aliyuncs.com/google_containers/pause:3.9" as the CRI sandbox image.
I1127 09:11:05.145902    5740 checks.go:846] image exists: registry.aliyuncs.com/google_containers/pause:3.9
I1127 09:11:05.160620    5740 checks.go:846] image exists: registry.aliyuncs.com/google_containers/etcd:3.5.9-0
I1127 09:11:05.176455    5740 checks.go:846] image exists: registry.aliyuncs.com/google_containers/coredns:v1.10.1
[certs] Using certificateDir folder "/etc/kubernetes/pki"
I1127 09:11:05.176678    5740 certs.go:112] creating a new certificate authority for ca
[certs] Generating "ca" certificate and key
I1127 09:11:05.282992    5740 certs.go:519] validating certificate period for ca certificate
[certs] Generating "apiserver" certificate and key
[certs] apiserver serving cert is signed for DNS names [kubernetes kubernetes.default kubernetes.default.svc kubernetes.default.svc.cluster.local master01] and IPs [10.96.0.1 192.168.19.101]
[certs] Generating "apiserver-kubelet-client" certificate and key
I1127 09:11:05.649872    5740 certs.go:112] creating a new certificate authority for front-proxy-ca
[certs] Generating "front-proxy-ca" certificate and key
I1127 09:11:05.786684    5740 certs.go:519] validating certificate period for front-proxy-ca certificate
[certs] Generating "front-proxy-client" certificate and key
I1127 09:11:05.867778    5740 certs.go:112] creating a new certificate authority for etcd-ca
[certs] Generating "etcd/ca" certificate and key
I1127 09:11:06.035242    5740 certs.go:519] validating certificate period for etcd/ca certificate
[certs] Generating "etcd/server" certificate and key
[certs] etcd/server serving cert is signed for DNS names [localhost master01] and IPs [192.168.19.101 127.0.0.1 ::1]
[certs] Generating "etcd/peer" certificate and key
[certs] etcd/peer serving cert is signed for DNS names [localhost master01] and IPs [192.168.19.101 127.0.0.1 ::1]
[certs] Generating "etcd/healthcheck-client" certificate and key
[certs] Generating "apiserver-etcd-client" certificate and key
I1127 09:11:06.437750    5740 certs.go:78] creating new public/private key files for signing service account users
[certs] Generating "sa" key and public key
[kubeconfig] Using kubeconfig folder "/etc/kubernetes"
I1127 09:11:06.470753    5740 kubeconfig.go:103] creating kubeconfig file for admin.conf
[kubeconfig] Writing "admin.conf" kubeconfig file
I1127 09:11:06.660910    5740 kubeconfig.go:103] creating kubeconfig file for kubelet.conf
[kubeconfig] Writing "kubelet.conf" kubeconfig file
I1127 09:11:06.783916    5740 kubeconfig.go:103] creating kubeconfig file for controller-manager.conf
[kubeconfig] Writing "controller-manager.conf" kubeconfig file
I1127 09:11:06.831956    5740 kubeconfig.go:103] creating kubeconfig file for scheduler.conf
[kubeconfig] Writing "scheduler.conf" kubeconfig file
[etcd] Creating static Pod manifest for local etcd in "/etc/kubernetes/manifests"
I1127 09:11:06.873106    5740 local.go:65] [etcd] wrote Static Pod manifest for a local etcd member to "/etc/kubernetes/manifests/etcd.yaml"
[control-plane] Using manifest folder "/etc/kubernetes/manifests"
[control-plane] Creating static Pod manifest for "kube-apiserver"
I1127 09:11:06.873153    5740 manifests.go:102] [control-plane] getting StaticPodSpecs
I1127 09:11:06.873358    5740 certs.go:519] validating certificate period for CA certificate
I1127 09:11:06.873427    5740 manifests.go:128] [control-plane] adding volume "ca-certs" for component "kube-apiserver"
I1127 09:11:06.873435    5740 manifests.go:128] [control-plane] adding volume "etc-pki" for component "kube-apiserver"
I1127 09:11:06.873463    5740 manifests.go:128] [control-plane] adding volume "k8s-certs" for component "kube-apiserver"
I1127 09:11:06.873901    5740 manifests.go:157] [control-plane] wrote static Pod manifest for component "kube-apiserver" to "/etc/kubernetes/manifests/kube-apiserver.yaml"
[control-plane] Creating static Pod manifest for "kube-controller-manager"
I1127 09:11:06.873932    5740 manifests.go:102] [control-plane] getting StaticPodSpecs
I1127 09:11:06.874093    5740 manifests.go:128] [control-plane] adding volume "ca-certs" for component "kube-controller-manager"
I1127 09:11:06.874117    5740 manifests.go:128] [control-plane] adding volume "etc-pki" for component "kube-controller-manager"
I1127 09:11:06.874123    5740 manifests.go:128] [control-plane] adding volume "flexvolume-dir" for component "kube-controller-manager"
I1127 09:11:06.874128    5740 manifests.go:128] [control-plane] adding volume "k8s-certs" for component "kube-controller-manager"
I1127 09:11:06.874132    5740 manifests.go:128] [control-plane] adding volume "kubeconfig" for component "kube-controller-manager"
I1127 09:11:06.874527    5740 manifests.go:157] [control-plane] wrote static Pod manifest for component "kube-controller-manager" to "/etc/kubernetes/manifests/kube-controller-manager.yaml"
[control-plane] Creating static Pod manifest for "kube-scheduler"
I1127 09:11:06.874563    5740 manifests.go:102] [control-plane] getting StaticPodSpecs
I1127 09:11:06.874722    5740 manifests.go:128] [control-plane] adding volume "kubeconfig" for component "kube-scheduler"
I1127 09:11:06.875004    5740 manifests.go:157] [control-plane] wrote static Pod manifest for component "kube-scheduler" to "/etc/kubernetes/manifests/kube-scheduler.yaml"
I1127 09:11:06.875030    5740 kubelet.go:67] Stopping the kubelet
[kubelet-start] Writing kubelet environment file with flags to file "/var/lib/kubelet/kubeadm-flags.env"
[kubelet-start] Writing kubelet configuration to file "/var/lib/kubelet/config.yaml"
[kubelet-start] Starting the kubelet
I1127 09:11:07.017539    5740 waitcontrolplane.go:83] [wait-control-plane] Waiting for the API server to be healthy
[wait-control-plane] Waiting for the kubelet to boot up the control plane as static Pods from directory "/etc/kubernetes/manifests". This can take up to 4m0s
[apiclient] All control plane components are healthy after 4.002718 seconds
I1127 09:11:11.021584    5740 uploadconfig.go:112] [upload-config] Uploading the kubeadm ClusterConfiguration to a ConfigMap
[upload-config] Storing the configuration used in ConfigMap "kubeadm-config" in the "kube-system" Namespace
I1127 09:11:11.029062    5740 uploadconfig.go:126] [upload-config] Uploading the kubelet component config to a ConfigMap
[kubelet] Creating a ConfigMap "kubelet-config" in namespace kube-system with the configuration for the kubelets in the cluster
I1127 09:11:11.035946    5740 uploadconfig.go:131] [upload-config] Preserving the CRISocket information for the control-plane node
I1127 09:11:11.035964    5740 patchnode.go:31] [patchnode] Uploading the CRI Socket information "unix:///run/containerd/containerd.sock" to the Node API object "master01" as an annotation
[upload-certs] Skipping phase. Please see --upload-certs
[mark-control-plane] Marking the node master01 as control-plane by adding the labels: [node-role.kubernetes.io/control-plane node.kubernetes.io/exclude-from-external-load-balancers]
[mark-control-plane] Marking the node master01 as control-plane by adding the taints [node-role.kubernetes.io/control-plane:NoSchedule]
[bootstrap-token] Using token: dj67du.p9nabt08rk2f7rs6
[bootstrap-token] Configuring bootstrap tokens, cluster-info ConfigMap, RBAC Roles
[bootstrap-token] Configured RBAC rules to allow Node Bootstrap tokens to get nodes
[bootstrap-token] Configured RBAC rules to allow Node Bootstrap tokens to post CSRs in order for nodes to get long term certificate credentials
[bootstrap-token] Configured RBAC rules to allow the csrapprover controller automatically approve CSRs from a Node Bootstrap Token
[bootstrap-token] Configured RBAC rules to allow certificate rotation for all node client certificates in the cluster
[bootstrap-token] Creating the "cluster-info" ConfigMap in the "kube-public" namespace
I1127 09:11:12.069563    5740 clusterinfo.go:47] [bootstrap-token] loading admin kubeconfig
I1127 09:11:12.070387    5740 clusterinfo.go:58] [bootstrap-token] copying the cluster from admin.conf to the bootstrap kubeconfig
I1127 09:11:12.070547    5740 clusterinfo.go:70] [bootstrap-token] creating/updating ConfigMap in kube-public namespace
I1127 09:11:12.073271    5740 clusterinfo.go:84] creating the RBAC rules for exposing the cluster-info ConfigMap in the kube-public namespace
I1127 09:11:12.078107    5740 kubeletfinalize.go:90] [kubelet-finalize] Assuming that kubelet client certificate rotation is enabled: found "/var/lib/kubelet/pki/kubelet-client-current.pem"
[kubelet-finalize] Updating "/etc/kubernetes/kubelet.conf" to point to a rotatable kubelet client certificate and key
I1127 09:11:12.078690    5740 kubeletfinalize.go:134] [kubelet-finalize] Restarting the kubelet to enable client certificate rotation
[addons] Applied essential addon: CoreDNS
I1127 09:11:12.457842    5740 request.go:629] Waited for 178.849313ms due to client-side throttling, not priority and fairness, request: POST:https://192.168.19.101:6443/apis/rbac.authorization.k8s.io/v1/namespaces/kube-system/rolebindings?timeout=10s
[addons] Applied essential addon: kube-proxy

Your Kubernetes control-plane has initialized successfully!

To start using your cluster, you need to run the following as a regular user:

  mkdir -p $HOME/.kube
  sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
  sudo chown $(id -u):$(id -g) $HOME/.kube/config

Alternatively, if you are the root user, you can run:

  export KUBECONFIG=/etc/kubernetes/admin.conf

You should now deploy a pod network to the cluster.
Run "kubectl apply -f [podnetwork].yaml" with one of the options listed at:
  https://kubernetes.io/docs/concepts/cluster-administration/addons/

Then you can join any number of worker nodes by running the following on each as root:

kubeadm join 192.168.19.101:6443 --token dj67du.p9nabt08rk2f7rs6 \
	--discovery-token-ca-cert-hash sha256:201dc88b6f1863edfc9ecc6968a60ed3168c52f4f6d4aebb052fba73dc6752ea