Cloudflare DDNS

A dynamic Cloudflare DDNS client with round-robin DNS, multiple zones and variable refresh rate and Docker Secret supports.

Environment variables

• CF_API_KEY: Cloudflare API token
• CF_API_KEY_FILE: Cloudflare API token stored in a file (for Docker Secret)
• ZONES: Cloudflare zones separated with commas (ex: example.com, example.ca)
• A_RECORD_NAME: A record name to write on update (default @ aka root)
• DELAY: delay between each check (default 300 seconds)
• UNIQUE: delete all other root A records except this one (default no)

Docker image

Pull the project's Docker image at archanes/cloudflare-ddns.

Creating a Cloudflare API token

To create a CloudFlare API token for your DNS zone go to https://dash.cloudflare.com/profile/api-tokens and follow these steps:

1. Click Create Token
2. Provide the token a name, for example, cloudflare-ddns
3. Grant the token the following permissions:
   • Zone - Zone Settings - Read
   • Zone - Zone - Read
   • Zone - DNS - Edit
4. Set the zone resources to:
   • Include - All zones