typhoon/google-cloud/fedora-coreos/kubernetes/workers/fcc/worker.yaml

---
variant: fcos
version: 1.0.0
systemd:
  units:
    - name: docker.service
      enabled: true
    - name: wait-for-dns.service
      enabled: true
      contents: |
        [Unit]
        Description=Wait for DNS entries
        Before=kubelet.service
        [Service]
        Type=oneshot
        RemainAfterExit=true
        ExecStart=/bin/sh -c 'while ! /usr/bin/grep '^[^#[:space:]]' /etc/resolv.conf > /dev/null; do sleep 1; done'
        [Install]
        RequiredBy=kubelet.service        
    - name: kubelet.service
      enabled: true
      contents: |
        [Unit]
        Description=Kubelet via Hyperkube (System Container)
        Wants=rpc-statd.service
        [Service]
        ExecStartPre=/bin/mkdir -p /etc/kubernetes/cni/net.d
        ExecStartPre=/bin/mkdir -p /etc/kubernetes/manifests
        ExecStartPre=/bin/mkdir -p /opt/cni/bin
        ExecStartPre=/bin/mkdir -p /var/lib/calico
        ExecStartPre=/bin/mkdir -p /var/lib/kubelet/volumeplugins
        ExecStartPre=/usr/bin/bash -c "grep 'certificate-authority-data' /etc/kubernetes/kubeconfig | awk '{print $2}' | base64 -d > /etc/kubernetes/ca.crt"
        ExecStartPre=-/usr/bin/podman rm kubelet
        ExecStart=/usr/bin/podman run --name kubelet \
          --privileged \
          --pid host \
          --network host \
          --volume /etc/kubernetes:/etc/kubernetes:ro,z \
          --volume /usr/lib/os-release:/etc/os-release:ro \
          --volume /etc/ssl/certs:/etc/ssl/certs:ro \
          --volume /lib/modules:/lib/modules:ro \
          --volume /run:/run \
          --volume /sys/fs/cgroup:/sys/fs/cgroup:ro \
          --volume /sys/fs/cgroup/systemd:/sys/fs/cgroup/systemd \
          --volume /etc/pki/tls/certs:/usr/share/ca-certificates:ro \
          --volume /var/lib/calico:/var/lib/calico:ro \
          --volume /var/lib/docker:/var/lib/docker \
          --volume /var/lib/kubelet:/var/lib/kubelet:rshared,z \
          --volume /var/log:/var/log \
          --volume /var/run/lock:/var/run/lock:z \
          --volume /opt/cni/bin:/opt/cni/bin:z \
          quay.io/poseidon/kubelet:v1.17.4 \
          --anonymous-auth=false \
          --authentication-token-webhook \
          --authorization-mode=Webhook \
          --cgroup-driver=systemd \
          --cgroups-per-qos=true \
          --enforce-node-allocatable=pods \
          --client-ca-file=/etc/kubernetes/ca.crt \
          --cluster_dns=${cluster_dns_service_ip} \
          --cluster_domain=${cluster_domain_suffix} \
          --cni-conf-dir=/etc/kubernetes/cni/net.d \
          --exit-on-lock-contention \
          --healthz-port=0 \
          --kubeconfig=/etc/kubernetes/kubeconfig \
          --lock-file=/var/run/lock/kubelet.lock \
          --network-plugin=cni \
          --node-labels=node.kubernetes.io/node \
          %{~ for label in split(",", node_labels) ~}
          --node-labels=${label} \
          %{~ endfor ~}
          --pod-manifest-path=/etc/kubernetes/manifests \
          --read-only-port=0 \
          --volume-plugin-dir=/var/lib/kubelet/volumeplugins
        ExecStop=-/usr/bin/podman stop kubelet
        Delegate=yes
        Restart=always
        RestartSec=10
        [Install]
        WantedBy=multi-user.target        
    - name: delete-node.service
      enabled: true
      contents: |
        [Unit]
        Description=Delete Kubernetes node on shutdown
        [Service]
        Type=oneshot
        RemainAfterExit=true
        ExecStart=/bin/true
        ExecStop=/bin/bash -c '/usr/bin/podman run --volume /etc/kubernetes:/etc/kubernetes:ro,z --entrypoint /usr/local/bin/kubectl quay.io/poseidon/kubelet:v1.17.4 kubectl --kubeconfig=/etc/kubernetes/kubeconfig delete node $HOSTNAME'
        [Install]
        WantedBy=multi-user.target        
storage:
  directories:
    - path: /etc/kubernetes
  files:
    - path: /etc/kubernetes/kubeconfig
      mode: 0644
      contents:
        inline: |
          ${kubeconfig}          
    - path: /etc/sysctl.d/max-user-watches.conf
      contents:
        inline: |
          fs.inotify.max_user_watches=16184          
    - path: /etc/systemd/system.conf.d/accounting.conf
      contents:
        inline: |
          [Manager]
          DefaultCPUAccounting=yes
          DefaultMemoryAccounting=yes
          DefaultBlockIOAccounting=yes          
    - path: /etc/sysconfig/docker
      mode: 0644
      overwrite: true
      contents:
        inline: |
          # Modify these options if you want to change the way the docker daemon runs
          OPTIONS="--selinux-enabled \
            --log-driver=json-file \
            --live-restore \
            --default-ulimit nofile=1024:1024 \
            --init-path /usr/libexec/docker/docker-init \
            --userland-proxy-path /usr/libexec/docker/docker-proxy \
          "          
passwd:
  users:
    - name: core
      ssh_authorized_keys:
        - ${ssh_authorized_key}