NGINX Plus can be configured into a high-availability cluster with an active-passive pair of NGINX Plus instances to ensure application availability.
NGINX Plus High Availability on AWS
High Availability Overview
Nginx High Availability and Load Balancing with KeepAlived, by j3ffyang
High Availability
Setting up a high availability environment
5.6.2 High availability - MetaDefender Email Gateway Security
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stable/nginx-ingress] high availability / production configuration · Issue #16192 · helm/charts · GitHub
All-Active HA for NGINX Plus on the Google Cloud Platform
NGINX: The Simplest Load Balancing Cluster with Failover - Evidian