Heartbeat resource agents for AWS    source 

Resource agents for Heartbeat to switch some AWS resources between machines.

Origenally developed for VyOS cluster to make it work with AWS resources failover.

Supported resource types:

AWS_IP

Instance IP address (in AWS). Supports multiple network interfaces per instance.

AWS_EIP

ElasticIP to instance mapping. Supports multiple network interfaces per instance.

AWS_Route

AWS VPC route table record changing to point to master node.