61 lines
1.8 KiB
Python
61 lines
1.8 KiB
Python
# Imports
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import os
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from cloudflare import Cloudflare
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from dotenv import load_dotenv
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from requests import get
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# Function to retrieve public IPv4 address
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def get_public_ipv4():
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ip_v4 = get('https://api.ipify.org').content.decode('utf8')
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return ip_v4
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# Function to set the dynamic DNS record in Cloudflare
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def set_dyndns_record(client, new_public_ip):
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response = client.dns.records.edit(
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zone_id=zone_id,
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dns_record_id=record_id,
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name=record_name,
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content=new_public_ip,
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type="A"
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)
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return response
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# Load environment variables from .env file
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load_dotenv()
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# Retrieve required environment variables
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api_token = os.environ.get("CLOUDFLARE_API_TOKEN")
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if not api_token:
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raise ValueError("Cloudflare API token is not set in environment variables.")
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zone_id = os.environ.get("CLOUDFLARE_ZONE_ID")
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record_name = os.environ.get("CLOUDFLARE_DNS_RECORD_NAME")
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record_id = os.environ.get("CLOUDFLARE_DNS_RECORD_ID")
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# Set the headers for Cloudflare API request
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headers = {
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"Authorization": f"Bearer {api_token}",
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"Content-Type": "application/json"
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}
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# Main execution
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if __name__ == "__main__":
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# Initialize Cloudflare client with the API token and headers
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client = Cloudflare(default_headers=headers)
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# Get the current DNS record for dynamic DNS
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dyndns_record = client.dns.records.get(
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dns_record_id=record_id,
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zone_id=zone_id
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)
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# Retrieve the current public IP address
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public_ip = get_public_ipv4()
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# Check if the current public IP matches the existing DNS record
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if public_ip == dyndns_record.content:
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# Exit if the IP addresses are the same
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exit()
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else:
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# Update the DNS record with the new public IP
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set_dyndns_record(client, public_ip) |