node.yaml

#cloud-config
write-files:
  - path: /opt/bin/wupiao
    permissions: '0755'
    content: |
      #!/bin/bash
      # [w]ait [u]ntil [p]ort [i]s [a]ctually [o]pen
      [ -n "$1" ] && [ -n "$2" ] && while ! curl --output /dev/null \
        --silent --head --fail \
        http://${1}:${2}; do sleep 1 && echo -n .; done;
      exit $?
coreos:
  etcd2:
    listen-client-urls: http://0.0.0.0:2379,http://0.0.0.0:4001
    advertise-client-urls: http://0.0.0.0:2379,http://0.0.0.0:4001
    initial-cluster: master=http://<master-private-ip>:2380
    proxy: on
  fleet:
    metadata: "role=node"
  units:
    - name: fleet.service
      command: start
    - name: flanneld.service
      command: start
      drop-ins:
        - name: 50-network-config.conf
          content: |
            [Unit]
            Requires=etcd2.service
            [Service]
            ExecStartPre=/usr/bin/etcdctl set /coreos.com/network/config '{"Network":"10.244.0.0/16", "Backend": {"Type": "vxlan"}}'
    - name: docker.service
      command: start
    - name: setup-network-environment.service
      command: start
      content: |
        [Unit]
        Description=Setup Network Environment
        Documentation=https://github.com/kelseyhightower/setup-network-environment
        Requires=network-online.target
        After=network-online.target

        [Service]
        ExecStartPre=-/usr/bin/mkdir -p /opt/bin
        ExecStartPre=/usr/bin/curl -L -o /opt/bin/setup-network-environment -z /opt/bin/setup-network-environment https://github.com/kelseyhightower/setup-network-environment/releases/download/v1.0.0/setup-network-environment
        ExecStartPre=/usr/bin/chmod +x /opt/bin/setup-network-environment
        ExecStart=/opt/bin/setup-network-environment
        RemainAfterExit=yes
        Type=oneshot
    - name: kube-proxy.service
      command: start
      content: |
        [Unit]
        Description=Kubernetes Proxy
        Documentation=https://github.com/GoogleCloudPlatform/kubernetes
        Requires=setup-network-environment.service
        After=setup-network-environment.service

        [Service]
        ExecStartPre=/usr/bin/curl -L -o /opt/bin/kube-proxy -z /opt/bin/kube-proxy https://storage.googleapis.com/kubernetes-release/release/v0.19.3/bin/linux/amd64/kube-proxy
        ExecStartPre=/usr/bin/chmod +x /opt/bin/kube-proxy
        # wait for kubernetes master to be up and ready
        ExecStartPre=/opt/bin/wupiao <master-private-ip> 8080
        ExecStart=/opt/bin/kube-proxy \
        --master=<master-private-ip>:8080 \
        --logtostderr=true
        Restart=always
        RestartSec=10
    - name: kube-kubelet.service
      command: start
      content: |
        [Unit]
        Description=Kubernetes Kubelet
        Documentation=https://github.com/GoogleCloudPlatform/kubernetes
        Requires=setup-network-environment.service
        After=setup-network-environment.service

        [Service]
        EnvironmentFile=/etc/network-environment
        ExecStartPre=/usr/bin/curl -L -o /opt/bin/kubelet -z /opt/bin/kubelet https://storage.googleapis.com/kubernetes-release/release/v0.19.3/bin/linux/amd64/kubelet
        ExecStartPre=/usr/bin/chmod +x /opt/bin/kubelet
        # wait for kubernetes master to be up and ready
        ExecStartPre=/opt/bin/wupiao <master-private-ip> 8080
        ExecStart=/opt/bin/kubelet \
        --address=0.0.0.0 \
        --port=10250 \
        --hostname_override=${DEFAULT_IPV4} \
        --api_servers=<master-private-ip>:8080 \
        --allow_privileged=true \
        --logtostderr=true \
        --cadvisor_port=4194 \
        --healthz_bind_address=0.0.0.0 \
        --healthz_port=10248
        Restart=always
        RestartSec=10
  update:
    group: alpha
    reboot-strategy: off