Home Assistant Auto Update DNS to porkbun.com

central_ddns.yaml

---
#############################################################################
# DNS Updater
#############################################################################

sensor:
  - platform: rest
    resource: "https://api.ipify.org/"
    name: "external_ip"
    scan_interval: 600

rest_command:
  ddns_porkbun:
    url: "https://api.porkbun.com/api/json/v3/dns/editByNameType/DOMAIN/A/SUBDOMAIN"
    method: post
    content_type: "application/json"
    payload: >
      {
        "apikey": "{{ APIKEY }}",
        "secretapikey": "{{ SECRETAPIKEY }}",
        "content":"{{ IP }}",
        "ttl": "{{ TTL }}"
      }

automation:
  - id: ddns_update_porkbun
    alias: "Update D(Dyn)DNS on Porkbun"
    mode: single
    trigger:
      - platform: state
        entity_id:
          - sensor.external_ip
    condition:
      - alias: ip is valid
        not:
          - condition: state
            entity_id: sensor.external_ip
            state: unavailable
          - condition: state
            entity_id: sensor.external_ip
            state: unknown
    action:
      - service: rest_command.ddns_porkbun
        data:
          APIKEY: !secret ddns_porkbun_apikey
          SECRETAPIKEY: !secret ddns_porkbun_secretapikey
          IP: "{{ states('sensor.external_ip') }}"
          TTL: "300"