First, make sure you have node >= 8 and npm installed.
To install run
npm install -g @phil-r/cloudflare-ddnsfollowing environment variables are required to run:
CF_KEY - your cloudflare API key, you can get one here
CF_EMAIL - your cloudflare account email
ZONE - domain/website you want to run updates for (e.g. example.com)
SUBDOMAIN - subdomain/CNAME you want to run updates for
PROXIED - whether it should be proxied or not (orange cloud in cloudflare DNS settings)
Example command can look like:
CF_EMAIL=john@example.com \
CF_KEY=11116x635034x27x111170006x465f1111xxxa \
ZONE=example.com \
SUBDOMAIN=www \
PROXIED=false \
cloudflare-ddns