Features:

• Support for ALIAS records in AWS Route 53.
• Support for managing multiple zones for AWS Route 53 and Google CloudDNS.
• Added the ownership system which protects existing DNS records from modification by ExternalDNS.
• Ability to create DNS records for services based on a template and service attribute values.
• Support for altering the DNS record modification behavior via policies.

Docker image is available in Zalando's Open Source Docker registry:

docker run -it registry.opensource.zalan.do/teapot/external-dns:v0.3.0 --help