cloud-config.yml

#cloud-config

coreos:
  etcd:
    discovery: https://discovery.etcd.io/stuff
    addr: $private_ipv4:4001
    peer-addr: $private_ipv4:7001
  units:
    - name: fleet-metadata.service
      command: start
      content: |-
        [Unit]
        Description=Fleet metadata updater
        Before=fleet.service
        Requires=fleet.service
        [Service]
        Type=oneshot
        RemainAfterExit=no
        EnvironmentFile=/etc/environment
        ExecStart=/usr/bin/bash -c '\
          echo "Writing EC2 metadata to fleet metadata."; \
          mkdir /run/systemd/system/fleet.service.d; \
          conf_file=/run/systemd/system/fleet.service.d/21-metadata.conf; \
          instance_id=$(curl -s http://169.254.169.254/latest/meta-data/instance-id); \
          az=$(curl -s http://169.254.169.254/latest/meta-data/placement/availability-zone); \
          region=$${az::-1}; \
          sgs=$(curl -s http://169.254.169.254/latest/meta-data/security-groups/ | sed "s/^/sg_/" | sed "s/$/=1/" | tr "\\n", ","); \
          echo "[Service]" > $conf_file; \
          echo "Environment=\'FLEET_METADATA=instance_id=$${instance_id},az=$${az},region=$${region},$${sgs}\'"  >> $conf_file; \
          systemctl daemon-reload; \
        '
    - name: etcd.service
      command: start
    - name: fleet.service
      command: start