#cloud-config

write_files:
  - path: /etc/systemd/system/kube-master-installation.service
    permissions: 0644
    owner: root
    content: |
      [Unit]
      Description=Download and install k8s binaries and configurations
      After=network-online.target

      [Service]
      Type=oneshot
      RemainAfterExit=yes
      ExecStartPre=/bin/mkdir -p /home/kubernetes/bin
      ExecStartPre=/bin/mount --bind /home/kubernetes/bin /home/kubernetes/bin
      ExecStartPre=/bin/mount -o remount,exec /home/kubernetes/bin
      # Use --retry-connrefused opt only if it's supported by curl.
      ExecStartPre=/bin/bash -c 'OPT=""; if curl --help | grep -q -- "--retry-connrefused"; then OPT="--retry-connrefused"; fi; /usr/bin/curl --fail --retry 5 --retry-delay 3 $OPT --silent --show-error -H "X-Google-Metadata-Request: True" -o /home/kubernetes/bin/configure.sh http://metadata.google.internal/computeMetadata/v1/instance/attributes/configure-sh'
      ExecStartPre=/bin/chmod 544 /home/kubernetes/bin/configure.sh
      ExecStart=/home/kubernetes/bin/configure.sh

      [Install]
      WantedBy=kubernetes.target

  - path: /etc/systemd/system/kube-master-configuration.service
    permissions: 0644
    owner: root
    content: |
      [Unit]
      Description=Configure kubernetes master
      After=kube-master-installation.service

      [Service]
      Type=oneshot
      RemainAfterExit=yes
      ExecStartPre=/bin/chmod 544 /home/kubernetes/bin/configure-helper.sh
      ExecStart=/home/kubernetes/bin/configure-helper.sh

      [Install]
      WantedBy=kubernetes.target

  - path: /etc/systemd/system/kube-container-runtime-monitor.service
    permissions: 0644
    owner: root
    content: |
      [Unit]
      Description=Kubernetes health monitoring for container runtime
      After=kube-master-configuration.service

      [Service]
      Restart=always
      RestartSec=10
      RemainAfterExit=yes
      RemainAfterExit=yes
      ExecStartPre=/bin/chmod 544 /home/kubernetes/bin/health-monitor.sh
      ExecStart=/home/kubernetes/bin/health-monitor.sh container-runtime

      [Install]
      WantedBy=kubernetes.target

  - path: /etc/systemd/system/kubelet-monitor.service
    permissions: 0644
    owner: root
    content: |
      [Unit]
      Description=Kubernetes health monitoring for kubelet
      After=kube-master-configuration.service

      [Service]
      Restart=always
      RestartSec=10
      RemainAfterExit=yes
      RemainAfterExit=yes
      ExecStartPre=/bin/chmod 544 /home/kubernetes/bin/health-monitor.sh
      ExecStart=/home/kubernetes/bin/health-monitor.sh kubelet

      [Install]
      WantedBy=kubernetes.target

  - path: /etc/systemd/system/kube-logrotate.timer
    permissions: 0644
    owner: root
    content: |
      [Unit]
      Description=Hourly kube-logrotate invocation

      [Timer]
      OnCalendar=hourly

      [Install]
      WantedBy=kubernetes.target

  - path: /etc/systemd/system/kube-logrotate.service
    permissions: 0644
    owner: root
    content: |
      [Unit]
      Description=Kubernetes log rotation
      After=kube-master-configuration.service

      [Service]
      Type=oneshot
      ExecStart=-/usr/sbin/logrotate /etc/logrotate.conf

      [Install]
      WantedBy=kubernetes.target

  - path: /etc/systemd/system/kubernetes.target
    permissions: 0644
    owner: root
    content: |
      [Unit]
      Description=Kubernetes

      [Install]
      WantedBy=multi-user.target

runcmd:
 - systemctl daemon-reload
 - systemctl enable kube-master-installation.service
 - systemctl enable kube-master-configuration.service
 - systemctl enable kube-container-runtime-monitor.service
 - systemctl enable kubelet-monitor.service
 - systemctl enable kube-logrotate.timer
 - systemctl enable kube-logrotate.service
 - systemctl enable kubernetes.target
 - systemctl start kubernetes.target