matchbox/examples/ignition/bootkube-controller.yaml

---
systemd:
  units:
    - name: etcd-member.service
      enable: true
      dropins:
        - name: 40-etcd-cluster.conf
          contents: |
            [Service]
            Environment="ETCD_IMAGE_TAG=v3.1.0"
            Environment="ETCD_NAME={{.etcd_name}}"
            Environment="ETCD_ADVERTISE_CLIENT_URLS=http://{{.domain_name}}:2379"
            Environment="ETCD_INITIAL_ADVERTISE_PEER_URLS=http://{{.domain_name}}:2380"
            Environment="ETCD_LISTEN_CLIENT_URLS=http://0.0.0.0:2379"
            Environment="ETCD_LISTEN_PEER_URLS=http://0.0.0.0:2380"
            Environment="ETCD_INITIAL_CLUSTER={{.etcd_initial_cluster}}"
            Environment="ETCD_STRICT_RECONFIG_CHECK=true"
    - name: docker.service
      enable: true
    - name: locksmithd.service
      dropins:
        - name: 40-etcd-lock.conf
          contents: |
            [Service]
            Environment="REBOOT_STRATEGY=etcd-lock"
    - name: kubelet.path
      enable: true
      contents: |
        [Unit]
        Description=Watch for kubeconfig
        [Path]
        PathExists=/etc/kubernetes/kubeconfig
        [Install]
        WantedBy=multi-user.target
    - 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
      contents: |
        [Unit]
        Description=Kubelet via Hyperkube ACI
        [Service]
        Environment="RKT_OPTS=--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"
        EnvironmentFile=/etc/kubernetes/kubelet.env
        ExecStartPre=/bin/mkdir -p /etc/kubernetes/manifests
        ExecStartPre=/bin/mkdir -p /srv/kubernetes/manifests
        ExecStartPre=/bin/mkdir -p /etc/kubernetes/checkpoint-secrets
        ExecStartPre=/bin/mkdir -p /etc/kubernetes/cni/net.d
        ExecStartPre=/bin/mkdir -p /var/lib/cni
        ExecStartPre=-/usr/bin/rkt rm --uuid-file=/var/run/kubelet-pod.uuid
        ExecStart=/usr/lib/coreos/kubelet-wrapper \
          --kubeconfig=/etc/kubernetes/kubeconfig \
          --require-kubeconfig \
          --cni-conf-dir=/etc/kubernetes/cni/net.d \
          --network-plugin=cni \
          --lock-file=/var/run/lock/kubelet.lock \
          --exit-on-lock-contention \
          --pod-manifest-path=/etc/kubernetes/manifests \
          --allow-privileged \
          --hostname-override={{.domain_name}} \
          --node-labels=master=true \
          --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 control plane with a temp api-server
        [Service]
        Type=simple
        WorkingDirectory=/opt/bootkube
        ExecStart=/opt/bootkube/bootkube-start
storage:
  {{ if index . "pxe" }}
  disks:
    - device: /dev/sda
      wipe_table: true
      partitions:
        - label: ROOT
  filesystems:
    - name: root
      mount:
        device: "/dev/sda1"
        format: "ext4"
        create:
          force: true
          options:
            - "-LROOT"
  {{end}}
  files:
    - path: /etc/kubernetes/kubelet.env
      filesystem: root
      mode: 0644
      contents:
        inline: |
          KUBELET_ACI=quay.io/coreos/hyperkube
          KUBELET_VERSION=v1.5.2_coreos.2
    - path: /etc/hostname
      filesystem: root
      mode: 0644
      contents:
        inline:
          {{.domain_name}}
    - 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
          BOOTKUBE_ACI="${BOOTKUBE_ACI:-quay.io/coreos/bootkube}"
          BOOTKUBE_VERSION="${BOOTKUBE_VERSION:-v0.3.7}"
          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 \
            $RKT_OPTS \
            ${BOOTKUBE_ACI}:${BOOTKUBE_VERSION} --net=host --exec=/bootkube -- start --asset-dir=/assets --etcd-server=http://127.0.0.1:2379 "$@"

{{ if index . "ssh_authorized_keys" }}
passwd:
  users:
    - name: core
      ssh_authorized_keys:
        {{ range $element := .ssh_authorized_keys }}
        - {{$element}}
        {{end}}
{{end}}