typhoon/digital-ocean/fedora-cloud/kubernetes/cloudinit/worker.yaml.tmpl

#cloud-config
yum_repos:
  kubernetes:
    name: kubernetes
    baseurl: https://packages.cloud.google.com/yum/repos/kubernetes-el7-x86_64
    enabled: true
    gpgcheck: true
    gpgkey: https://packages.cloud.google.com/yum/doc/yum-key.gpg https://packages.cloud.google.com/yum/doc/rpm-package-key.gpg
packages:
  - [docker, 1.13.1]
  - [kubelet, 1.10.0]
  - nfs-utils
write_files:
  - path: /etc/systemd/system/cloud-metadata.service
    content: |
      [Unit]
      Description=Digital Ocean metadata agent
      [Service]
      Type=oneshot
      Environment=OUTPUT=/run/metadata/digitalocean
      ExecStart=/usr/bin/mkdir -p /run/metadata
      ExecStart=/usr/bin/bash -c 'echo "DIGITALOCEAN_IPV4_PUBLIC_0=$(curl\
        --url http://169.254.169.254/metadata/v1/interfaces/public/0/ipv4/address\
        --retry 10)\nDIGITALOCEAN_IPV4_PRIVATE_0=$(curl\
        --url http://169.254.169.254/metadata/v1/interfaces/private/0/ipv4/address\
        --retry 10)" > $${OUTPUT}'
  - path: /etc/systemd/system/kubelet.service.d/10-typhoon.conf
    content: |
      [Unit]
      Description=Kubelet
      Requires=cloud-metadata.service
      After=cloud-metadata.service
      Wants=rpc-statd.service
      [Service]
      EnvironmentFile=/run/metadata/digitalocean
      ExecStartPre=/bin/mkdir -p /opt/cni/bin
      ExecStartPre=/bin/mkdir -p /etc/kubernetes/manifests
      ExecStartPre=/bin/mkdir -p /etc/kubernetes/cni/net.d
      ExecStartPre=/bin/mkdir -p /etc/kubernetes/checkpoint-secrets
      ExecStartPre=/bin/mkdir -p /etc/kubernetes/inactive-manifests
      ExecStartPre=/bin/mkdir -p /var/lib/cni
      ExecStartPre=/bin/mkdir -p /var/lib/kubelet/volumeplugins
      ExecStartPre=/usr/bin/bash -c "grep 'certificate-authority-data' /etc/kubernetes/kubeconfig | awk '{print $2}' | base64 -d > /etc/kubernetes/ca.crt"
      ExecStart=
      ExecStart=/usr/bin/kubelet \
        --allow-privileged \
        --anonymous-auth=false \
        --cgroup-driver=systemd \
        --client-ca-file=/etc/kubernetes/ca.crt \
        --cluster_dns=${k8s_dns_service_ip} \
        --cluster_domain=${cluster_domain_suffix} \
        --cni-conf-dir=/etc/kubernetes/cni/net.d \
        --exit-on-lock-contention \
        --hostname-override=$${DIGITALOCEAN_IPV4_PRIVATE_0} \
        --kubeconfig=/etc/kubernetes/kubeconfig \
        --lock-file=/var/run/lock/kubelet.lock \
        --network-plugin=cni \
        --node-labels=node-role.kubernetes.io/node \
        --pod-manifest-path=/etc/kubernetes/manifests \
        --volume-plugin-dir=/var/lib/kubelet/volumeplugins
      Restart=always
      RestartSec=10
      [Install]
      WantedBy=multi-user.target 
  - path: /etc/systemd/system/kubelet.path
    content: |
      [Unit]
      Description=Watch for kubeconfig
      [Path]
      PathExists=/etc/kubernetes/kubeconfig
      [Install]
      WantedBy=multi-user.target
  - path: /etc/kubernetes/.keep
  - path: /etc/selinux/config
    content: |
      SELINUX=permissive
runcmd:
  - [systemctl, daemon-reload]
  - [systemctl, enable, docker.service]
  - [systemctl, start, --no-block, docker.service]
  - [systemctl, enable, cloud-metadata.service]
  - [systemctl, enable, kubelet.path]
  - [systemctl, start, --no-block, kubelet.path]
users:
  - default
  - name: fedora
    gecos: Fedora Admin
    sudo: ALL=(ALL) NOPASSWD:ALL
    groups: wheel,adm,systemd-journal,docker
    ssh-authorized-keys:
      - "${ssh_authorized_key}"