NGINX has a recommended HA load balancing solution that works in combination with the new AWS Network Load Balancer.
Alessandro Fael Garcia
NGINX created officially supported Ansible Roles for the open source NGINX software and NGINX Plus, now replaced by a unified Role.
High-availability, all-active, auto-scaling solutions are the new DevOps normal. Use Packer, Terraform, and NGINX Plus to implement them on GCE.