CloudInit on UpCloud

cloud-config.yml

#cloud-config

write_files:
  - path: /run/cloud-config.yml
    permissions: '0644'
    content: |
      #cloud-config

      ssh_authorized_keys:
        - ssh-rsa AAAAB....
      coreos:
        update:
          reboot-strategy: etcd-lock
        etcd:
          discovery: https://discovery.etcd.io/<token>
          addr: $_private_ipv4:4001
          peer-addr: $_private_ipv4:7001
        fleet:
          public-ip: $_public_ipv4
        units:
          - name: etcd.service
            command: start
          - name: fleet.service
            command: start
  - path: /run/setup-environment.sh
    permissions: '0755'
    content: |
      #!/bin/bash

      ENV="/etc/environment"

      # Test for RW access to $1
      touch $ENV
      if [ $? -ne 0 ]; then
          echo exiting, unable to modify: $ENV
          exit 1
      fi

      # Setup environment target
      sed -i -e '/^COREOS_PUBLIC_IPV4=/d' \
          -e '/^COREOS_PRIVATE_IPV4=/d' \
          "${ENV}"

      function get_ip () {
          IF=$1
          IP=
          while [ 1 ]; do
              IP=$(ifconfig $IF | awk '/inet / {print $2}')
              if [ "$IP" != "" ]; then
                  break
              fi
              sleep .1
          done
          echo $IP  
      }

      echo COREOS_PUBLIC_IPV4=$(get_ip eth0) >> $ENV
      echo COREOS_PRIVATE_IPV4=$(get_ip eth1) >> $ENV
coreos:
  units:
    - name: setup-environment.service
      command: start
      runtime: true
      content: |
        [Unit]
        Description=Setup environment with private (and public) IP addresses
        [Service]
        Type=oneshot
        RemainAfterExit=yes
        ExecStart=/run/setup-environment.sh
    - name: second-stage-cloudinit.service
      runtime: true
      command: start
      content: |
        [Unit]
        Description=Run coreos-cloudinit with actual cloud-config after environment has been set up
        Requires=setup-environment.service
        After=setup-environment.service
        Requires=user-cloudinit-proc-cmdline.service
        After=user-cloudinit-proc-cmdline.service
        [Service]
        Type=oneshot
        RemainAfterExit=yes
        EnvironmentFile=/etc/environment
        ExecStartPre=/usr/bin/sed -i 's/\$_p/$p/g' /run/cloud-config.yml
        ExecStart=/usr/bin/coreos-cloudinit --from-file=/run/cloud-config.yml