#!/sbin/openrc-run

description="Set hostname on Docker GCP edition"

depend()
{
  need net
  before docker
}

metadata() {
  curl -sH 'Metadata-Flavor: Google' http://metadata.google.internal/computeMetadata/v1/${1}
}

start()
{
  [ "$(mobyplatform)" != "gcp" ] && exit 0

  ebegin "Set hostname based on what GCP tells us it should be"

  IP=$(metadata instance/network-interfaces/0/ip)
  HOSTNAME=$(metadata instance/hostname)
  echo "${IP} ${HOSTNAME} ${HOSTNAME%%.*}  # Added by Google" >> /etc/hosts
  echo "169.254.169.254 metadata.google.internal  # Added by Google" >> /etc/hosts
  echo ${HOSTNAME%%.*} >/etc/hostname
  hostname -F /etc/hostname

  eend 0
}