Deploy ddclient.

Example config:

    ddclient_tsig_public_key_base64: "you_base64_public_key_here"
    ddclient_tsig_private_key_base64: "you_base64_private_key_here"
    
    ddclient_hosts:
      - name: record1.example.com
        dns_ip: 192.168.1.2
        domain: example.com
      - name: record2.example.com
        dns_ip: 192.168.1.2
        domain: example.com