#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:
  - vim
  - docker
  - kubelet
  - 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/etcd-member.service
    content: |
      [Unit]
      Description=etcd-member
      Documentation=https://github.com/coreos/etcd
      Wants=network-online.target network.target
      After=network-online.target
      Requires=docker.service
      After=docker.service
      [Service]
      EnvironmentFile=/etc/etcd/etcd.conf
      ExecStartPre=/bin/mkdir -p /var/lib/etcd
      ExecStart=/usr/bin/docker run --rm --name etcd-member \
        --net=host \
        -v /usr/share/ca-certificates:/usr/share/ca-certificates:ro,z \
        -v /etc/ssl/etcd:/etc/ssl/certs:ro,Z \
        -v /var/lib/etcd:/var/lib/etcd:Z \
        --env-file=/etc/etcd/etcd.conf \
        quay.io/coreos/etcd:v3.3.2
      ExecStop=/usr/bin/docker stop etcd-member
      Restart=on-failure
      RestartSec=10s
      TimeoutStartSec=0
      LimitNOFILE=40000
      [Install]
      WantedBy=multi-user.target
  - path: /etc/etcd/etcd.conf
    content: |
      ETCD_NAME=${etcd_name}
      ETCD_DATA_DIR=/var/lib/etcd
      ETCD_ADVERTISE_CLIENT_URLS=https://${etcd_domain}:2379
      ETCD_INITIAL_ADVERTISE_PEER_URLS=https://${etcd_domain}:2380
      ETCD_LISTEN_CLIENT_URLS=https://0.0.0.0:2379
      ETCD_LISTEN_PEER_URLS=https://0.0.0.0:2380
      ETCD_INITIAL_CLUSTER=${etcd_initial_cluster}
      ETCD_STRICT_RECONFIG_CHECK=true
      ETCD_TRUSTED_CA_FILE=/etc/ssl/certs/etcd/server-ca.crt
      ETCD_CERT_FILE=/etc/ssl/certs/etcd/server.crt
      ETCD_KEY_FILE=/etc/ssl/certs/etcd/server.key
      ETCD_CLIENT_CERT_AUTH=true
      ETCD_PEER_TRUSTED_CA_FILE=/etc/ssl/certs/etcd/peer-ca.crt
      ETCD_PEER_CERT_FILE=/etc/ssl/certs/etcd/peer.crt
      ETCD_PEER_KEY_FILE=/etc/ssl/certs/etcd/peer.key
      ETCD_PEER_CLIENT_CERT_AUTH=true
  - 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/master \
        --node-labels=node-role.kubernetes.io/controller="true" \
        --pod-manifest-path=/etc/kubernetes/manifests \
        --register-with-taints=node-role.kubernetes.io/master=:NoSchedule \
        --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
  - path: /etc/systemd/system/bootkube.service
    content: |
      [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
  - path: /opt/bootkube/bootkube-start
    permissions: '0544'
    content: |
      #!/bin/bash -e
      # Wrapper for bootkube start
      [ -n "$(ls /opt/bootkube/assets/manifests-*/* 2>/dev/null)" ] && mv /opt/bootkube/assets/manifests-*/* /opt/bootkube/assets/manifests && rm -rf /opt/bootkube/assets/manifests-*
      /usr/bin/docker run --rm --name bootkube \
        --volume /etc/kubernetes:/etc/kubernetes:Z \
        --volume /opt/bootkube/assets:/assets:Z \
        --entrypoint=/bootkube \
        quay.io/coreos/bootkube:v0.11.0 start --asset-dir=/assets
runcmd:
  - [systemctl, daemon-reload]
  - [systemctl, enable, docker.service]
  - [systemctl, start, --no-block, docker.service]
  - [systemctl, enable, etcd-member.service]
  - [systemctl, start, --no-block, etcd-member.service]
  - [systemctl, enable, cloud-metadata.service]
  - [systemctl, enable, kubelet.path]
  - [systemctl, start, --no-block, kubelet.path]
users:
  - default
  - name: fedora
    gecos: Fedora Admin
    sudo: ALL=(ALL) NOPASSWD:ALL
    groups: wheel,adm,systemd-journal,docker
    ssh-authorized-keys:
      - "${ssh_authorized_key}"