typhoon/digital-ocean/container-linux/kubernetes/cl/controller.yaml.tmpl

---
systemd:
  units:
    - name: docker.service
      enable: true
    - name: locksmithd.service
      mask: true
    - name: wait-for-dns.service
      enable: true
      contents: |
        [Unit]
        Description=Wait for DNS entries
        Wants=systemd-resolved.service
        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
      enable: true
      contents: |
        [Unit]
        Description=Kubelet via Hyperkube ACI
        Requires=coreos-metadata.service
        After=coreos-metadata.service
        [Service]
        EnvironmentFile=/etc/kubernetes/kubelet.env
        EnvironmentFile=/run/metadata/coreos
        Environment="RKT_RUN_ARGS=--uuid-file-save=/var/run/kubelet-pod.uuid \
          --volume=resolv,kind=host,source=/etc/resolv.conf \
          --mount volume=resolv,target=/etc/resolv.conf \
          --volume var-lib-cni,kind=host,source=/var/lib/cni \
          --mount volume=var-lib-cni,target=/var/lib/cni \
          --volume var-log,kind=host,source=/var/log \
          --mount volume=var-log,target=/var/log"
        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=/usr/bin/bash -c "grep 'certificate-authority-data' /etc/kubernetes/kubeconfig | awk '{print $2}' | base64 -d > /etc/kubernetes/ca.crt"
        ExecStartPre=-/usr/bin/rkt rm --uuid-file=/var/run/kubelet-pod.uuid
        ExecStart=/usr/lib/coreos/kubelet-wrapper \
          --kubeconfig=/etc/kubernetes/kubeconfig \
          --require-kubeconfig \
          --client-ca-file=/etc/kubernetes/ca.crt \
          --anonymous-auth=false \
          --cni-conf-dir=/etc/kubernetes/cni/net.d \
          --network-plugin=cni \
          --lock-file=/var/run/lock/kubelet.lock \
          --exit-on-lock-contention \
          --hostname-override=$${COREOS_DIGITALOCEAN_IPV4_PRIVATE_0} \
          --pod-manifest-path=/etc/kubernetes/manifests \
          --allow-privileged \
          --node-labels=node-role.kubernetes.io/master \
          --register-with-taints=node-role.kubernetes.io/master=:NoSchedule \
          --cluster_dns=${k8s_dns_service_ip} \
          --cluster_domain=cluster.local
        ExecStop=-/usr/bin/rkt stop --uuid-file=/var/run/kubelet-pod.uuid
        Restart=always
        RestartSec=10
        [Install]
        WantedBy=multi-user.target
    - name: bootkube.service
      contents: |
        [Unit]
        Description=Bootstrap a Kubernetes cluster
        ConditionPathExists=!/opt/bootkube/init_bootkube.done
        [Service]
        Type=oneshot
        RemainAfterExit=true
        WorkingDirectory=/opt/bootkube
        ExecStart=/opt/bootkube/bootkube-start
        ExecStartPost=/bin/touch /opt/bootkube/init_bootkube.done
        [Install]
        WantedBy=multi-user.target
storage:
  files:
    - path: /etc/kubernetes/kubeconfig
      filesystem: root
      mode: 0644
      contents:
        inline: |
          apiVersion: v1
          kind: Config
          clusters:
          - name: local
            cluster:
              server: ${kubeconfig_server}
              certificate-authority-data: ${kubeconfig_ca_cert}
          users:
          - name: kubelet
            user:
              client-certificate-data: ${kubeconfig_kubelet_cert}
              client-key-data: ${kubeconfig_kubelet_key}
          contexts:
          - context:
              cluster: local
              user: kubelet
    - path: /etc/kubernetes/kubelet.env
      filesystem: root
      mode: 0644
      contents:
        inline: |
          KUBELET_IMAGE_URL=quay.io/coreos/hyperkube
          KUBELET_IMAGE_TAG=v1.7.1_coreos.0
    - path: /etc/sysctl.d/max-user-watches.conf
      filesystem: root
      contents:
        inline: |
          fs.inotify.max_user_watches=16184
    - path: /opt/bootkube/bootkube-start
      filesystem: root
      mode: 0544
      user:
        id: 500
      group:
        id: 500
      contents:
        inline: |
          #!/bin/bash
          # Wrapper for bootkube start
          set -e
          # Move experimental manifests
          [ -d /opt/bootkube/assets/experimental/manifests ] && mv /opt/bootkube/assets/experimental/manifests/* /opt/bootkube/assets/manifests && rm -r /opt/bootkube/assets/experimental/manifests
          [ -d /opt/bootkube/assets/experimental/bootstrap-manifests ] && mv /opt/bootkube/assets/experimental/bootstrap-manifests/* /opt/bootkube/assets/bootstrap-manifests && rm -r /opt/bootkube/assets/experimental/bootstrap-manifests
          BOOTKUBE_ACI="$${BOOTKUBE_ACI:-quay.io/coreos/bootkube}"
          BOOTKUBE_VERSION="$${BOOTKUBE_VERSION:-v0.6.0}"
          BOOTKUBE_ASSETS="$${BOOTKUBE_ASSETS:-/opt/bootkube/assets}"
          exec /usr/bin/rkt run \
            --trust-keys-from-https \
            --volume assets,kind=host,source=$${BOOTKUBE_ASSETS} \
            --mount volume=assets,target=/assets \
            --volume bootstrap,kind=host,source=/etc/kubernetes \
            --mount volume=bootstrap,target=/etc/kubernetes \
            $${RKT_OPTS} \
            $${BOOTKUBE_ACI}:$${BOOTKUBE_VERSION} \
            --net=host \
            --dns=host \
            --exec=/bootkube -- start --asset-dir=/assets "$@"