#!/bin/bash

function metadata_service() {
    cp ./files/metadata.service /etc/systemd/system/metadata@.service
    cp ./files/metadata.sh      /usr/local/bin/run-metadata-in-netns.sh
    chmod +x /usr/local/bin/run-metadata-in-netns.sh
}

function metadata_config() {
  vm_name="${1}"
  meta_def="${2}"
  ssh_key="${3}"

  PASSWORD="\$6\$LD5z9v/s2b170Twj\$pl1B/Mz0w8PCr7JhFcclQpBSxUQTDOiuPko8yf4LntEo8FrIo2yKVeHR6fb5VQpxX9NP2k9yhXdsp671Sc56u1"

  VENDOR_DATA=$(
  cat <<END | sed -e ':a;N;$!ba;s/\n/\\n/g' | sed -e 's/"/\\"/g'
users:
  - name: syonad
    lock_passwd: true
    gecos: alpine Cloud User
    groups: [adm, wheel]
    doas:
      - permit nopass syonad
    sudo: ["ALL=(ALL) NOPASSWD:ALL"]
    shell: /bin/ash
    passwd: "${PASSWORD}"
    ssh_authorized_keys:
      - ${ssh_key}
END
  )

  cat <<END > "/opt/metadata/${meta_def}.conf"
{
  "meta-data": "instance-id: ${vm_name}\nlocal-hostname: ${vm_name}\n",
  "user-data": "#!/bin/sh\npasswd -d root\n",
  "network-config": "version: 2\nethernets:\n  eth0:\n    dhcp4: true\n",
  "vendor-data": "${VENDOR_DATA}"
}
END


}

function metadata_start() {
    vpc="${1}"
    ip="${2}"
    port="${3}"
    vm_name="${4}"
    ssh_key="${5}"


    metadata_config "${vm_name}" "${vpc}_${ip}-${port}" "${ssh_key}"
    systemctl start "metadata@${vpc}_${ip}-${port}.service"
}

function metadata_stop() {
    vpc="${1}"
    ip="${2}"
    port="${3}"

    systemctl stop "metadata@${vpc}_${ip}-${port}.service"
    rm -f "/opt/metadata/${vpc}_${ip}-${port}.conf"
}