Very simple DDNS using AWS Route 53
#/bin/bash
# AWS_ACCESS_KEY_ID example (fake)
export AWS_ACCESS_KEY_ID=KkRbWpoyqLHo69dvoskn
# AWS_SECRET_ACCESS_KEY example (fake)
export AWS_SECRET_ACCESS_KEY=VXFvVu0ckOYP22WYxAz9TyoNYC8Rx1WVLVFK3Fyc
# AWS_DEFAULT_REGION default region
export AWS_DEFAULT_REGION=us-west-2
go build
./route53ddns -name home.example.com -ttl 60 -hostedZoneID Z2DKEZEXAMPLE1
# crontab
This can be run other ways but crontab was the target.