Cloudflare Dynamic DNS

Usage

Docker

docker run -d -p $PORT:8000 ghcr.io/ole-treichel/cloudflare-dyndns:latest

Docker Compose

version: '3.3'

services:
  cloudflare_dyndns:
    restart: always
    image: "ghcr.io/ole-treichel/cloudflare-dyndns:latest"
    ## if host network ist preferable
    # network_mode: "host"
    # environment:
    #    PORT: $PORT
    ports:
        - "$PORT:8000"

docker compose up -d

The server exposes one endpoint that you can use as "update url":

/dyndns?token=$TOKEN&zone_id=$ZONE_ID&domain=$DOMAIN&domain=$DOMAIN&ip=$IP

Params

Param	Description
token	Cloudflare api token. Needs Zone:Edit and DNS:Edit scopes.
zone_id	Cloudflare zone id.
domain	The domain name you wish to update (e.g. example.com). Can be repeated to update multiple domains at once.
ip	The ip address to set on the dns record(s).

Development

go run cmd/cloudflare-dyndns/cloudflare-dyndns.go