cloud-config.yaml

#cloud-config

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

      coreos:
        fleet:
          # Need to override this in a unit like we did for etcd below
          # used for fleetctl ssh command
          # public-ip: $_private_ipv4
          metadata: "role=services"
        units:
          - name: etcd.service
            command: start
          - name: fleet.service
            command: start
coreos:
  units:
    - name: setup-network-environment.service
      command: start
      runtime: true
      content: |
        [Unit]
        Description=Setup networking environment by pulling IP from ifconfig(8)
        Documentation=https://github.com/kelseyhightower/setup-network-environment
        Requires=network-online.target
        After=network-online.target

        [Service]
        ExecStartPre=-/usr/bin/mkdir -p /opt/bin
        ExecStartPre=/usr/bin/wget -N -P /opt/bin http://REDACTED/coreos-setup-network-environment-linux-amd64

        ExecStartPre=/usr/bin/chmod +x /opt/bin/coreos-setup-network-environment-linux-amd64
        ExecStart=/opt/bin/coreos-setup-network-environment-linux-amd64
        RemainAfterExit=yes
        Type=oneshot
    - name: etcd.service
      command: start
      content: |
        [Unit]
        Description=etcd
        Requires=setup-network-environment.service
        After=setup-network-environment.service
        ConditionFileNotEmpty=/etc/network-environment
        ReloadPropagatedFrom=setup-network-environment.service
 
        [Service]
        User=etcd
        PermissionsStartOnly=true
        EnvironmentFile=/etc/network-environment
        ExecStart=/usr/bin/etcd -name etcd -addr ${DEFAULT_IPV4}:4001 -peer-addr ${DEFAULT_IPV4}:7001 -data-dir /var/lib/etcd -max-retry-attempts 20 -cluster-active-size 3 -discovery https://discovery.etcd.io/REDACTED
        Restart=always
        RestartSec=10s